eSIM for Osaka: Practical Guide for US Travelers [2026]

Editor: Marco Bianchi — this guide has not yet been personally tested in Osaka. Procedures are verified against official Airalo channels (Moshi Moshi catalog, Japan) and validated on the fibraforum thread 42484 (post 37 DrBobKelso Japan pattern, post 6 ilboy95 landing experience, post 43 alanfibra troubleshooting) + Reddit r/JapanTravelTips and r/JapanTravel + cross-validation with cycle-5 Tokyo/Kyoto guides. Price and procedure snapshot as of May 7, 2026. Read more: Airalo review .

Osaka is Japan's kitchen. Tokyo is the metropolis, Kyoto is the spiritual center, but Osaka is where you go to eat — takoyaki under the neon lights of Dotonbori, okonomiyaki in the alleyways of Namba, kushikatsu fried standing at the counter in Shinsekai. For US travelers it's also the logistical hub of the Kansai region: you fly into Kansai International Airport (KIX), base yourself in Osaka for 3–5 days, and make day trips to Kyoto (15 minutes by train), Kobe (30 minutes), Nara (45 minutes), Himeji (1 hour), Universal Studios Japan right inside Osaka, and maybe extend to Hiroshima (90 minutes by Shinkansen).

For all of this you need data on your phone from the moment you walk out of the terminal: Universal Studios reservations via app, Google Maps to navigate the Midosuji and Tanimachi lines on Osaka Metro, Japanese menu translation with your camera, the JR West app for JR trains, Hankyu Mobile for Kyoto, Suica/ICOCA on Apple Wallet for on-the-go top-ups. Without a working data connection, Osaka becomes an exercise in frustration. With data, it's the perfect base for exploring all of Kansai.

Below you'll find: Airalo Japan plans (Moshi Moshi line, Docomo + KDDI network) with real catalog pricing, Docomo + KDDI coverage in Osaka's tourist areas (Dotonbori, Namba, Umeda, Shinsaibashi, Tennoji, USJ), the pre-flight + KIX landing setup walkthrough, an honest comparison with rental pocket WiFi (the traditional option for tourists in Japan), and the day trips that shift the equation (Kyoto, Kobe, Nara, Himeji, Hiroshima).

The Airalo eSIM for Osaka in a nutshell

TL;DR — Airalo in Osaka: The Airalo eSIM for Japan (Moshi Moshi line) runs on NTT Docomo + KDDI au, the two widest-reaching carriers in the country. Install the eSIM before your flight, land at Kansai International Airport and the line connects automatically within 1–2 minutes, and from that moment you're using Maps, Google Translate, Suica via Apple Wallet, JR West App, restaurant reservations, the Universal Studios app, and photo cloud sync — without paying carrier roaming rates. The standard 5 GB / 30-day plan: $11. Japan is one of the most affordable eSIMs in the entire Airalo catalog, and Osaka has identical coverage to Tokyo.

The experience pattern is the one described by DrBobKelso (fibraforum post 37) for a trip to Japan: "I can only recommend it — I used it in Japan and it was a lifesaver when I was exploring solo without the router the rest of the group had rented." This is the classic Osaka scenario: your group takes an organized tour to Kyoto while you hop the Hankyu line solo from Umeda to Arashiyama, and the pocket WiFi goes with the tour. That's exactly when a personal eSIM earns its keep.

What you need to know before you go

Visa-free for US citizens up to 90 days. US citizens can enter Japan visa-free for tourist stays up to 90 days. No arrival forms to file, no extensions needed. You'll just need a passport valid for at least 6 months and a return ticket. For almost every trip (7–21 days), the Airalo Moshi Moshi 30-day plan covers your entire stay with room to spare.

JR Pass or Kansai Pass. A separate decision from your eSIM, but one you'll have to make: since October 1, 2023, the nationwide JR Pass nearly doubled in price (¥50,000 for 7 days). If you're staying in Kansai only, the JR Kansai Area Pass (1–4 days, ¥2,800–¥7,200) or the Kansai Thru Pass (2–3 days, ~¥4,500–¥5,600, covers Osaka Metro + Kyoto Buses + Hankyu + Keihan + Kintetsu) are far better value. For topping up your IC card (ICOCA or Suica via Apple Wallet), your eSIM is genuinely useful.

eSIM technical requirement. Your phone must support eSIM. iPhone XS and later (2018+) are all compatible. The US iPhone 14 is eSIM-only — the Japanese model is physical dual-SIM + eSIM. On Android: Samsung Galaxy S20+, Pixel 3+, Xiaomi 12T+, Xiaomi 13/14/15 all work. Older models like the Redmi Note 11 typically don't support eSIM. A common question from US travelers on r/JapanTravelTips is: "I'm about to leave for Japan — does Airalo work well with an Android XIAOMI? I'm not very tech-savvy and don't want to run into issues." The practical answer: Xiaomi 12T and newer — yes. For older models, check Settings > About phone > SIM status to see if "eSIM IMEI" appears or if an "Add eSIM" option exists.

Keep your US number for banking and 2FA. The dual-SIM setup is the default approach. Keep your US carrier SIM active (your current carrier — AT&T, T-Mobile, Verizon, etc.) to receive bank SMS alerts, authentication codes, card OTPs, and 2FA codes — a transaction you make online from Osaka will still deliver the SMS normally. The Airalo eSIM is added as a second line, used for data only.

Data roaming must be ON for the Airalo line (not your primary line). Critical point. iPhone technically treats the Airalo line as "roaming" even though the eSIM connects locally to Docomo. Without the "Data Roaming" toggle enabled on the Airalo line specifically, the device won't connect even if the eSIM is installed correctly. alanfibra (fibraforum post 43) makes it the first thing he always checks: "Did you enable data roaming?" Read more: how to activate eSIM on Samsung .

Airalo Japan Plans (Osaka)

Airalo Moshi Moshi catalog (Japan) as of May 7, 2026, NTT Docomo + KDDI au network. Prices listed in USD as shown in the Airalo feed; approximate EUR conversion at the day's rate (1 USD ≈ €0.92). Verify at checkout.

Indicative pricing as of May 7, 2026 — verify at checkout on airalo.com. Read more: eSIM for Saigon .

Which plan to pick specifically for Osaka. Osaka has free WiFi pretty much everywhere (major JR and Osaka Metro stations, 7-Eleven, Lawson, Family Mart, Starbucks, hotels, modern ryokan). Real cellular data consumption tends to be modest because you're constantly picking up WiFi whenever you step into a convenience store to top up your ICOCA. For 7–10 days in Osaka + Kyoto + day trips to Nara/Kobe with average usage, 5 GB / 30 days at $11 is the most common choice. That said, if you're planning full days at Universal Studios Japan (heavy app use, photos, video, virtual queues) or multi-day trips outside Kansai (Hiroshima, Miyajima, Hokkaido tacked on at the end), step up to 10 GB to stay comfortable.

For the full Japan catalog overview covering Osaka + Tokyo + Kyoto + day trips to Hakone/Nara: complete Japan guide: plans, nationwide coverage, FAQ .

Coverage across Osaka's neighborhoods

NTT Docomo is Japan's top carrier for coverage and network quality; KDDI au is second. Airalo Moshi Moshi uses both infrastructures (multi-network). Below is the real-world picture area by area, drawn from actual community reviews on Reddit (r/JapanTravelTips, r/Osaka, r/JapanTravel) + official Airalo channels + Japanese network benchmarks.

Kansai International Airport (KIX, 関空). The airport sits on an artificial island 31 miles southwest of central Osaka. Full 5G coverage in both terminals (T1 + T2 Peach) and on the connecting trains (Nankai Rapi:t Express to Namba in 35 min, JR Haruka to Tennoji/Shin-Osaka in 50 min). At landing: as soon as you're off the plane and reconnect to local networks, the Airalo eSIM activates within 1–2 minutes. "Working immediately on landing" is the expected pattern (ilboy95, fibraforum post 6, originally reported for Dubai but identical for KIX).

Itami (Osaka International Airport, ITM). Domestic airport in northeast Osaka — used only for flights within Japan. Full 5G coverage. If you're flying domestically from Tokyo Haneda or Sapporo, you'll land here, not at KIX.

Dotonbori, Namba, Shinsaibashi. The tourist heart of Minami (south Osaka). Glico runner sign on the Dotonbori canal, Kuromon Market, Shinsaibashi-suji shopping street, takoyaki and okonomiyaki restaurants. Full 5G coverage throughout.

Umeda, Osaka Station, Kita. Northern business and shopping district. Umeda Sky Building, Hep Five (red Ferris wheel), Grand Front Osaka, Lucua, Hankyu Department Store. Osaka Station/Umeda is massive (3 interconnected stations — JR Osaka, Hankyu Umeda, Hanshin Umeda). Full 5G coverage even underground (Whity Umeda, Diamor Osaka — the underground shopping arcades).

Tennoji, Abeno. South Osaka, home to Shitennoji Temple and Abeno Harukas (300 m, Japan's tallest skyscraper). Full 5G.

Shinsekai, Tsutenkaku Tower. Retro "old Osaka" neighborhood, deep-fried kushikatsu, classic '60s vibe. Solid 4G/5G.

Universal Studios Japan (USJ). Sakurajima neighborhood, western harbor area. Full 5G coverage throughout the park. The official USJ app requires data for virtual queuing, Express Pass, and Super Nintendo World reservations — works perfectly with Airalo.

Osaka Castle (Tenshukaku, Honmaru). Castle grounds and park. Full 5G.

Osaka Metro. 8 subway lines (Midosuji, Tanimachi, Yotsubashi, Sennichimae, Sakaisuji, Chuo, Imazatosuji, Nanko Port Town) all with 4G/5G cellular coverage in the main tunnels since 2018–2020. JR West elevated lines (Osaka Loop Line / Kanjo-sen, Yumesaki Line, Tozai Line) always have coverage. Backup: free Osaka Free Wi-Fi in major Osaka Metro stations.

Community voice on Japan network display. A commenter on r/JapanTravelTips noted: "I noticed you can't see which carrier is connected — it just shows ' Ubigi '" — the same pattern applies to Airalo: you'll see "Airalo Japan" or "Moshi Moshi" as the network name instead of "Docomo" or "KDDI". That's normal, it's just how eSIM branding works. Gabbo (fibraforum post 12) asked the general question: "Do you choose which carrier to connect to yourself, or does it connect automatically?" The practical answer for Osaka: leave it on automatic — the Airalo eSIM will latch onto Docomo or KDDI on its own. Only switch to manual selection if signal is unstable and you want to pick the stronger carrier yourself.

Pre-flight setup + landing at Kansai

The process is the same as any Airalo eSIM, regardless of the plan. Full checklist below, validated against official Airalo channels and the fibraforum community. Read more: how Airalo works .

One week before departure

1. Open the Airalo app (or airalo.com), search for "Japan." You'll find the Moshi Moshi plan.
2. Choose your plan (5 GB / 30 days is the sweet spot for 7–14 days in Osaka + Kyoto + Nara).
3. Purchase: you'll receive an installation QR code + an eSIM pending activation.
4. Do NOT install the eSIM yet — wait until the evening before your departure. The day count starts ONLY when the eSIM first connects to a network in Japan.

The evening before your flight (at home, on WiFi)

iPhone procedure (iOS 17/18/19):

1. Settings > Cellular (or "Cellular & Cellular Data").
2. Tap "Add eSIM."
3. Choose "Use QR Code" and scan the Airalo QR from your purchase confirmation email.
4. Label the line: "Airalo Osaka" or "Airalo Japan."
5. "Default Line": leave this as your US number.
6. "iMessage & FaceTime": keep your US number.
7. "Cellular Data": assign to Airalo.
8. "Allow Cellular Data Switching": off (prevents accidental fallback to your US SIM and unintended roaming charges).

Android procedure (Samsung Galaxy / Xiaomi 12T+ / Pixel ):

1. Settings > Connections > SIM Manager (Samsung) / SIM Cards & Mobile Networks (Xiaomi HyperOS) / SIMs & Network (Pixel).
2. "Add eSIM" > "Add via QR code."
3. Scan the Airalo QR code.
4. Label the line, set "Data line" = Airalo.

At the departure airport, before boarding

• Confirm the Airalo eSIM is visible in Settings > Cellular with status "Disabled" or "Awaiting Network" — that's normal, it will activate only once you land in Japan.
• Download offline Maps for Osaka + Kyoto + Nara + Kobe (Google Maps > Search "Osaka" > three-dot menu > Download offline map). All of Osaka offline is about 200 MB.
• Download the apps: Suica (Apple Wallet or Mobile Suica), Google Translate offline (Japanese), JR West App, Hankyu Mobile, Universal Studios Japan, NAVITIME for Japan Travel.

In flight (last two hours before landing)

• Confirm that "Data Roaming" is ON for the Airalo line. Settings > Cellular > Airalo line > Data Roaming > ON. Mentioning this because it's the first thing the community will tell you to check. alanfibra (fibraforum post 43): "Did you enable data roaming?"
• Confirm your hotel address in romaji + kanji (for a taxi if needed), transfer reservation, and tickets for upcoming days.

Landing at Kansai International (KIX)

• As soon as the plane touches down and you turn off airplane mode, the phone starts scanning for local networks.
• The Airalo eSIM latches onto Docomo or KDDI automatically within 1–2 minutes.
• You'll see the 4G/5G icon appear; the banner will confirm "Airalo Japan — Moshi Moshi" or "NTT DOCOMO" / "KDDI."
• Quick test: open WhatsApp and send a message. Open Maps and search for your hotel. Check your Nankai Rapi:t Express booking.
• From KIX: Nankai Rapi:t Express to Namba in 35 min (~¥1,430) or JR Haruka to Tennoji/Shin-Osaka in 50 min (~¥2,380). The eSIM holds through the tunnels.

If the eSIM doesn't activate on arrival

Three things to check, in order:

1. Data roaming ON for the Airalo line specifically (not your primary US line). Fixes the issue in 80% of cases.
2. APN configured. Usually automatic. Check: Settings > Cellular > Airalo line > Cellular Data Network > APN. For Moshi Moshi it's typically "globaldata" or blank (auto).
3. Manual carrier selection. Settings > Cellular > Airalo line > Network Selection > Turn off "Automatic" > Wait for scan > Tap "NTT DOCOMO" or "KDDI." Read more: eSIM on iPhone .

If none of the three fixes it, contact Airalo support via in-app chat. Free Kansai Free Wi-Fi is available at the airport so you can run these checks without data.

For the full eSIM setup walkthrough on iPhone and Android with all edge cases: Airalo eSIM step-by-step setup guide .

Day Trip: Kyoto

Kyoto via JR (15 min, JR Special Rapid Service from Osaka Station, ~¥570) or Hankyu (45 min but cheaper, ¥410 from Umeda).

Kyoto is the go-to day trip from Osaka. UNESCO temples: Kinkaku-ji (Golden Pavilion), Ginkaku-ji (Silver Pavilion), Fushimi Inari Taisha (the thousand red torii gates), Kiyomizu-dera, Arashiyama bamboo grove. Gion geisha district. Full 5G coverage in central Kyoto and the outskirts (Arashiyama, Fushimi). That said, in the Arashiyama bamboo grove itself 4G holds but can be patchy — offline Maps recommended there.

The Airalo Moshi Moshi eSIM is the same plan for both Osaka and Kyoto — no plan change needed, it's a nationwide Japan plan. For the Kyoto-specific guide covering Gion, Higashiyama, Fushimi Inari, and Kinkaku-ji coverage: eSIM for a Kyoto day trip from Osaka .

Day Trips: Kobe, Nara, Himeji

Kobe (30 min via JR or Hankyu). Famous for Kobe beef, Harborland, Kitano-cho (19th-century Western-style houses), and Mt. Rokko panoramic views. Full 5G in the city, solid 4G on Mt. Rokko hiking trails. Easy day trip.

Nara (45 min via Kintetsu from Namba or JR from Osaka Station, ~¥570–¥800). Todai-ji Temple (Great Buddha), Kasuga Taisha, free-roaming deer park. 4G/5G coverage in the park and at the temples.

Himeji (1 hour via Sanyo Shinkansen or JR Special Rapid). Himeji Castle (UNESCO, widely considered Japan's most beautiful castle). Full 5G in the city.

Hiroshima and Miyajima (90 min on the Nozomi Shinkansen). A long but doable day trip. Peace Memorial, Miyajima island with its floating torii gate. Full 5G in Hiroshima city, 4G on Miyajima (ferry + island).

Day trip to Tokyo via Shinkansen. Technically doable (2.5 hours on the Nozomi Shinkansen) but awkward for a single day. If you're heading to Tokyo, plan for at least 2–3 nights. The Airalo Moshi Moshi eSIM covers all of Japan — no plan change needed. For Tokyo specifics: eSIM for Tokyo if you're continuing after Osaka .

Is Airalo worth it in Osaka, or are there better options?

Osaka has three real alternatives to the Airalo eSIM, and the answer isn't "always Airalo." It depends on your travel style.

Rental pocket WiFi (Sakura Mobile, Japan Wireless, Ninja WiFi, Global Advanced Communications at the KIX counter).

The classic tourist option in Japan since 2010. Costs around $5–$10/day = roughly $50–$100 for 10 days. You pick it up at the KIX counter (reserved online in advance) and return it in a prepaid envelope at any convenience store or airport counter on your way out. Upside: one device that shares internet with 4–6 gadgets simultaneously — great for families. Downside: an extra device to carry and charge every night, a ~$165 penalty if you lose it, and shared bandwidth that slows down when 4 devices are streaming at once. "You're paying for the convenience" as rikyxxx (fibraforum post 48) says about Airalo — but pocket WiFi is a different kind of convenience, the right call for group travel.

DrBobKelso (fibraforum post 37) describes the hybrid scenario: group trip with a rented router, but on a solo excursion he used Airalo because "the router was with someone else in the group." This is the exact Osaka scenario: your group heads to Universal Studios with the tour's router while you take the Hankyu from Umeda to Arashiyama alone — and a personal Airalo eSIM saves the day. The cost of a backup Airalo 3 GB / 30-day eSIM = $8: negligible compared to the cost of the pocket WiFi.

Ubigi (eSIM purchased on arrival via app).

Ubigi is the main eSIM alternative to Airalo for Japan. BestName (fibraforum post 18) captures the key difference: Ubigi "is always pricier, but has one feature Airalo doesn't: you can buy the eSIM right when you arrive at your destination even without an internet connection." For Japan this is only marginally useful (free WiFi is everywhere), but it's a genuine feature. Ubigi pricing typically runs 10–15% above Airalo. For the full breakdown: Airalo vs Ubigi for Japan . Read more: Airalo vs carrier roaming .

Physical SIM at the KIX carrier counter. Mobal, Sakura Mobile, and others at the KIX international arrivals hall. Tourist packages typically cost $27–$55 for 5–30 GB valid 8–30 days. More expensive than Airalo for the same data. Only wins if your phone doesn't support eSIM.

Honest negatives: when Airalo in Osaka is NOT the right call

Family of 4+ with tablets or a portable gaming device. A rental pocket WiFi lets a single device share internet across 4–6 gadgets simultaneously — cheaper than 4 separate Airalo eSIMs, though individual speeds drop when all 4 devices are streaming at once.

Stays of 30+ days with heavy data usage. rikyxxx (fibraforum post 48) puts it honestly: "Airalo makes sense if you're staying 1 or 2 weeks max... for 30 days with a lot of GB it's not worth it." For Japan specifically: if you're staying 60 days with 50+ GB of consumption, look into a long-stay tourist SIM from Sakura Mobile or Mobal (~$85–$130 for 60 days unlimited) — it can come out ahead.

Phone without eSIM support. iPhone 8/X or pre-2020 budget Android without eSIM: physical SIM is your only option.

Bottom line

For a standard 7–14 day Osaka + Kansai trip with an iPhone XS+ or premium Android, Airalo Moshi Moshi (Docomo + KDDI network) at $11 for 5 GB / 30 days is the default choice: active the moment you land at KIX, full 5G coverage across Dotonbori/Umeda/Namba/USJ, solid coverage on day trips to Kyoto/Kobe/Nara/Himeji, and a single Japan-wide plan if you continue to Tokyo or Hiroshima. Pocket WiFi only makes more sense for families of 4+. This is the Japan pattern validated by the fibraforum community over 18 months and cross-checked against the cycle-5 Tokyo/Kyoto guides.

Last reviewed: 2026-05-08. Price snapshot as of May 7, 2026 — verify at checkout on airalo.com.

Does Airalo work in Osaka?

Yes. The Airalo eSIM for Japan (Moshi Moshi line) runs on NTT Docomo + KDDI au, the two primary carriers in the country. Coverage is full 4G/5G across the entire Osaka metro area: Dotonbori, Namba, Umeda, Shinsaibashi, Tennoji, Osaka Castle, Universal Studios Japan, and Kansai International Airport. It also works on the Osaka Metro subway system (Midosuji, Tanimachi, Yotsubashi, Sennichimae, Sakaisuji, Tsurumi-ryokuchi, Imazatosuji, Nanko Port Town lines) with tunnel coverage. DrBobKelso (fibraforum post 37) confirms it for Japan: the eSIM was "a lifesaver when exploring solo."

How much does an Airalo eSIM for Osaka cost?

Airalo Moshi Moshi catalog (Japan) as of May 7, 2026: 1 GB / 7 days at $4.50; 2 GB / 15 days at $6.50; 3 GB / 30 days at $8.00; 5 GB / 30 days at $11.00; 10 GB / 30 days at $18.00; 20 GB / 30 days at $25.00. For a standard 7–10 day trip covering Osaka + Kyoto + Nara with Maps, Google Translate, Suica via Apple Wallet, photo cloud sync, and JR/Hankyu apps: the 5 GB / 30-day plan at $11 is the most popular choice. Japan is one of the most affordable eSIMs in the Airalo catalog.

Is Airalo better than renting a pocket WiFi at Kansai Airport?

For solo travelers or couples with a recent smartphone: Airalo wins. Pocket WiFi (Sakura Mobile, Japan Wireless, Ninja WiFi at the Kansai Airport counter) costs around $5–$10/day = roughly $50–$100 for 10 days; you have to pick up and return the device, charge it every night, and pay a penalty if you lose it. Airalo 5 GB at $11 covers 10 days of average usage. Pocket WiFi remains a valid choice for families of 4+ with tablets (one device for everyone) or for anyone without an eSIM-compatible smartphone. DrBobKelso (post 37) was using the group's rented router, but on a solo side trip it was Airalo that saved him.

Does the Airalo eSIM work on the Osaka Metro subway?

Yes, largely. Osaka Metro has 8 lines (Midosuji, Tanimachi, Yotsubashi, Sennichimae, Sakaisuji, Chuo, Imazatosuji, Nanko Port Town) all with 4G/5G cellular coverage in the main tunnels since 2018–2020. Airalo uses the Docomo + KDDI infrastructure — the same networks Japanese carriers have wired throughout the system. JR West elevated lines (Osaka Loop Line, Yumesaki Line to Universal Studios) have full coverage above ground. Osaka Free Wi-Fi (free at major Osaka Metro stations, email registration required) serves as a backup on more peripheral stretches.

What should I do if my eSIM doesn't activate at Kansai International Airport?

Three checks, in order. One: data roaming ON for the Airalo line specifically (NOT your primary US line). alanfibra (fibraforum post 43) makes it his first question every time: "Did you enable data roaming?" Two: APN configured — usually automatic for the Moshi Moshi line. Three: manual carrier selection — choose NTT DOCOMO or KDDI at Settings > Cellular > Airalo line > Network Selection. Free Kansai Free Wi-Fi is available at the airport so you can run these checks without data. If none of the three resolves it, contact Airalo support via in-app chat. KIX connects to central Osaka via the Nankai Rapi:t Express or JR Haruka in 50 min.

Does Airalo work at Universal Studios Japan?

Yes, perfectly. Universal Studios Japan (USJ) is in the Sakurajima neighborhood on Osaka's western waterfront. Docomo + KDDI 5G coverage is full throughout the entire park (Hogwarts, Super Nintendo World, Jurassic Park, Hollywood, Minion Park). The official USJ app (virtual queues, park map, attraction reservations) requires active cellular data — the Airalo Moshi Moshi 5 GB / 30-day plan handles a full day comfortably even with heavy use (maps, photos, video, social media). In-park free WiFi exists in some areas but gets unreliable with thousands of visitors connected simultaneously.

Can I use the same eSIM across Osaka, Kyoto, Tokyo, and Nara?

Yes, the Airalo Moshi Moshi eSIM is a nationwide Japan plan — it covers the entire country. Fly Osaka–Tokyo by Shinkansen (2.5 hours, ¥14,000) or plane (1 hour), take the train from Osaka to Kyoto (15 min on Hankyu or JR Special Rapid Service), Osaka to Nara (45 min Kintetsu), Osaka to Kobe (30 min JR), and the eSIM keeps working without any plan change. The same plan covers Hokkaido, Okinawa, Shikoku, and Kyushu — all major islands. Great for multi-city itineraries: one eSIM, 30-day validity that starts when you first connect to the network.

Can I keep my US number while using Airalo in Osaka?

Yes — this is exactly the dual-SIM iPhone (or dual-SIM Android) setup that Airalo is built for. Keep your US carrier SIM or eSIM active to receive bank SMS alerts, authentication codes, card OTPs, and 2FA codes. The Airalo eSIM is added as a second line, set as your data line, and all internet traffic routes through Airalo Moshi Moshi (Docomo/KDDI). Your US number stays yours with no risk of losing it.