Mobile Network and Internet in Arunachal Pradesh: Jio, Airtel or BSNL? (2026)
Which SIM works in Tawang, Sela, Bum La, Dirang, Ziro and Mechuka? Where signal drops, how good hotel Wi-Fi is, and how to plan a trip with patchy network.
Mobile network in Arunachal Pradesh is good in the main towns and patchy in between. In Tawang, Bomdila, Dirang, Itanagar and Ziro you can usually make calls and use 4G data on Jio or Airtel. On the long mountain stretches, such as Sela Pass, the road to Bum La and the valleys around Mechuka, expect weak or no signal for an hour or more at a time.
The fix is simple: carry two SIMs from different networks, download what you need before you leave each town, and keep some cash because UPI fails without data. Here is what to expect, place by place.
Network by place
This table reflects what travellers and our drivers reported in 2026. Coverage is improving every year as new towers go up along the border, so treat it as a guide.
| Place | Calls | Data | Notes |
|---|---|---|---|
| Guwahati to Bhalukpong | Good | Good, 4G or 5G | All networks work on the Assam side |
| Bhalukpong to Bomdila | Patchy | Patchy | Gaps in the forested stretch after Tenga |
| Bomdila | Good | Good | Jio and Airtel 4G in town |
| Dirang and Sangti | Good in town | Fair | Weaker at Sangti Valley camps |
| Sela Pass and the tunnel | Weak | Weak or none | Don't plan calls here |
| Jang and Nuranang Falls | Fair | Fair | Improving |
| Tawang town | Good | Good, 4G | Jio and Airtel are the most reliable |
| Tawang to Bum La | Very weak | Usually none | Assume you're offline for the day |
| Mago and Zemithang | Weak | Weak or none | Remote. BSNL is sometimes the only signal |
| Itanagar | Good | Good | State capital, full 4G |
| Ziro | Good in town | Fair to good | Weaker in outlying villages and at festival sites |
| Mechuka | Patchy | Patchy | Slow data. Plan to be mostly offline |
| Roing and Mayudia | Fair in Roing | Weak at Mayudia | Mayudia Pass often has no signal |
Jio, Airtel or BSNL?
Jio has expanded fastest in Arunachal and now reaches Tawang. It's the best single choice for data in towns and along the main highway.
Airtel works well in Tawang, Bomdila, Itanagar and Ziro. In some places it holds a signal where Jio drops, which is why carrying both is useful.
BSNL was first into many border areas and still has towers in some villages the private networks haven't reached. Data on BSNL is often slow or 2G/3G, but calls and SMS may get through.
Vi (Vodafone Idea) has the weakest coverage in Arunachal. If it's your only SIM, buy a Jio or Airtel SIM before you travel.
How to plan a trip with patchy network
- Download offline maps of Arunachal on Google Maps before you leave Guwahati. Navigation keeps working without data.
- Save your ILP as a PDF and carry printouts. Check posts at Bhalukpong and elsewhere may ask for it where you can't load email. Our Arunachal ILP guide explains how to apply.
- Send your plan for the day to family each morning: where you're driving and when you expect to reach. Then they won't worry when you go quiet over Sela.
- Carry cash. UPI needs data on your phone or the shop's. Small shops, dhabas and fuel stations on the highway may not have signal.
- Agree a meeting point with your group in places like the Tawang market or monastery. You can't always call each other.
- Save your driver's and hotel's numbers, and an alternate number if they have one on another network.
Can I work remotely from Arunachal?
For a few emails or a short video call, yes, in Tawang, Itanagar, Ziro or Bomdila, if you have backup. For a full workweek, it's risky. Hotel Wi-Fi is usually a broadband line shared by all guests, and power cuts are common in winter. If you must work, stay in Itanagar or a well-reviewed Tawang hotel, carry a power bank, and use your phone's hotspot on a second network as a backup. Don't plan important calls on travel days.
Network tips for foreign travellers
Foreign nationals need a Protected Area Permit to visit Arunachal. International roaming often doesn't work well in the region, so buy an Indian SIM in a big city before you travel, which needs your passport and visa. Some border areas, including Bum La, are closed to foreigners anyway.
The upside
Hours without signal over Sela Pass are part of what makes the trip memorable. Many travellers enjoy a day offline at Bum La or by the river in Sangti more than they expect. For a deliberate break, see our guide to a digital detox in Ziro Valley.
Planning the drive? Read our Guwahati to Tawang road trip guide. We can also arrange a driver who knows where the signal gaps are, in our Arunachal Pradesh tour packages.
Helpful Answers
Frequently Asked Questions
Does Jio work in Tawang?
Yes. Jio 4G works in Tawang town. It is weak or absent on Sela Pass and the road to Bum La, and in remote villages such as Mago and Zemithang.
Which SIM is best for Arunachal Pradesh?
Carry two: Jio and Airtel are the best combination for towns and highways. BSNL sometimes works in remote villages where the others don't.
Is there network at Bum La Pass?
Don't count on it. Most visitors have no usable data at Bum La or on most of the road from Tawang. Assume you're offline for the day.
Do prepaid SIMs from other states work in Arunachal?
Yes. Prepaid and postpaid SIMs from anywhere in India work in Arunachal Pradesh, subject to coverage.
Does UPI work in Tawang?
Usually in town, when you and the shop both have signal. Carry cash for the highway, remote viewpoints and days when the network is down.
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