Fiber Broadband Providers
Thailand has three major fiber internet providers. All offer fiber-to-the-home (FTTH) in urban areas and many suburban/rural locations. Installation is typically free or minimal cost with a 12-month contract.
TRUE Online
- Coverage: Nationwide, strongest in Bangkok and Central Thailand
- Speeds: 100/50 Mbps to 1,000/500 Mbps
- Pricing: THB 599/month (100 Mbps) to THB 1,499/month (1 Gbps)
- Contract: 12 months standard; free router included
- Notes: TRUE merged with DTAC in 2023 to form TRUE Corporation. Largest fiber network in the country. Generally reliable with good speeds. Customer service available in English via the TRUE app.
- Best for: Most areas in Bangkok and major cities
AIS Fibre
- Coverage: Nationwide, strong in all regions
- Speeds: 100/100 Mbps to 1,000/500 Mbps
- Pricing: THB 599/month (100 Mbps) to THB 1,299/month (1 Gbps)
- Contract: 12 months; free installation and router
- Notes: AIS is Thailand's largest telecom overall. Strong symmetric upload speeds on many plans (upload = download on entry-level plans). Good international routing, especially to Singapore and Japan.
- Best for: Those who need good upload speeds for video calls
3BB (Triple T Broadband)
- Coverage: Nationwide, strong in Northern and Northeastern Thailand
- Speeds: 100/50 Mbps to 1,000/500 Mbps
- Pricing: THB 590/month (100 Mbps) to THB 1,390/month (1 Gbps)
- Contract: 12 months; free router
- Notes: Acquired by AIS parent company in 2023 but still operates independently. Strong presence in areas where TRUE and AIS coverage is weaker. Slightly cheaper on some plans. Historically had more outages than AIS/TRUE, but has improved.
- Best for: Budget option, areas where other providers have limited coverage
| Speed Tier |
TRUE |
AIS |
3BB |
| 100 Mbps |
THB 599/mo |
THB 599/mo |
THB 590/mo |
| 200 Mbps |
THB 699/mo |
THB 699/mo |
THB 690/mo |
| 500 Mbps |
THB 899/mo |
THB 899/mo |
THB 890/mo |
| 1,000 Mbps (1 Gbps) |
THB 1,499/mo |
THB 1,299/mo |
THB 1,390/mo |
All prices are approximate and may vary based on promotions. At THB 599/month (~US$18) for 100 Mbps fiber, Thailand offers some of the cheapest fast internet in the world.
Installation Tip for Nomads
If you are renting a condo, the building may already have fiber from one provider. Ask the building management which ISPs are available. Most condos in Bangkok have at least TRUE and AIS. If you are on a short stay, your condo's included WiFi (usually 30-100 Mbps) may be sufficient — check the speed before paying for your own line.
Mobile Internet & 5G
Thailand rolled out 5G in 2020 and coverage has expanded rapidly. As of 2026, 5G is available across Bangkok, Chiang Mai, Phuket, Pattaya, and most provincial capitals. 4G LTE covers essentially the entire country.
The Big Two Operators
After the TRUE-DTAC merger in 2023, Thailand effectively has two major mobile operators:
AIS
- Network: Largest 5G and 4G coverage in Thailand
- 5G speeds: 300-700 Mbps in covered areas
- 4G speeds: 30-100 Mbps typical
- Monthly plans: THB 599-1,499/month with 5G data
- Best for: Widest coverage, especially in rural areas and islands
TRUE (merged with DTAC)
- Network: Second-largest, rapidly improving post-merger
- 5G speeds: 250-600 Mbps in covered areas
- 4G speeds: 25-80 Mbps typical
- Monthly plans: THB 599-1,299/month with 5G data
- Best for: Good value plans, strong Bangkok coverage
Tourist SIM vs. Long-Term Plans
Tourist SIM Cards
Available at airports (Suvarnabhumi, Don Mueang, Chiang Mai, Phuket) and 7-Eleven stores everywhere. You need your passport to register.
| Provider |
Plan |
Data |
Price |
| AIS |
Traveller SIM (8 days) |
15 GB 5G/4G + unlimited 2 Mbps |
THB 299 (~US$9) |
| AIS |
Traveller SIM (15 days) |
30 GB 5G/4G + unlimited 2 Mbps |
THB 599 (~US$18) |
| TRUE |
Tourist SIM (10 days) |
20 GB 5G/4G |
THB 299 (~US$9) |
| TRUE |
Tourist SIM (30 days) |
50 GB 5G/4G |
THB 699 (~US$21) |
Long-Term Postpaid Plans
If you are staying more than a month, a postpaid plan gives you better value and higher data limits. You need your passport and a Thai address to sign up at an AIS or TRUE shop.
| Provider |
Monthly Cost |
Data |
5G Access |
| AIS |
THB 599/mo (~US$18) |
30 GB 5G + unlimited 4 Mbps |
Yes |
| AIS |
THB 899/mo (~US$27) |
60 GB 5G + unlimited 6 Mbps |
Yes |
| AIS |
THB 1,499/mo (~US$45) |
Unlimited 5G (100 GB priority) |
Yes |
| TRUE |
THB 599/mo (~US$18) |
30 GB 5G + unlimited 4 Mbps |
Yes |
| TRUE |
THB 799/mo (~US$24) |
50 GB 5G + unlimited 6 Mbps |
Yes |
Pro Tip: eSIM
Both AIS and TRUE now support eSIM. If your phone supports it, you can activate a Thai eSIM before you even arrive. This means you land in Thailand with data already working — no need to queue at the airport SIM counter. Download the AIS or TRUE app to set this up.
Internet Speed by Location
Not all locations in Thailand are created equal when it comes to internet. Here is what to expect:
| Location |
Fiber Available |
Typical Speed |
5G Coverage |
Notes |
| Bangkok |
Everywhere |
100-1,000 Mbps |
Excellent |
Best internet in Thailand. All ISPs, all speeds available. |
| Chiang Mai |
City-wide |
100-500 Mbps |
Good (central) |
Excellent for a smaller city. Nimman area has the best coverage. |
| Phuket |
Most areas |
100-300 Mbps |
Good (Phuket Town) |
Good in Phuket Town, Rawai, Chalong. Some beach areas weaker. |
| Pattaya |
City-wide |
100-500 Mbps |
Good |
Strong infrastructure due to tourism investment. |
| Koh Samui |
Main areas |
50-200 Mbps |
Limited |
Fiber available in Chaweng, Bophut, Nathon. Some rural spots are 4G only. |
| Koh Phangan |
Limited |
30-100 Mbps |
Minimal |
Improving but still island-level. Thong Sala and Srithanu best areas. |
| Koh Lanta |
Limited |
30-100 Mbps |
Minimal |
KoHub coworking has dedicated fiber. Elsewhere, variable quality. |
| Hua Hin |
City-wide |
100-300 Mbps |
Good |
Solid infrastructure. Popular with expats, so well-served by ISPs. |
Backup Connectivity Options
As a remote worker, you need a backup plan for when your primary internet goes down. Here are your options:
Mobile Hotspot
Your Thai SIM card is your best backup. A 5G or 4G hotspot from your phone can deliver 30-200 Mbps. Keep a postpaid plan with sufficient data (at least 30 GB/month) as an always-available fallback. If your fiber goes down during a video call, switching to hotspot takes about 15 seconds.
Portable WiFi Device
You can rent or buy a pocket WiFi device (sometimes called a "MiFi") that accepts a SIM card and provides WiFi for up to 5-10 devices. AIS and TRUE sell them for THB 1,500-3,000. Useful if you work from multiple locations or want a dedicated data connection separate from your phone.
Cafe WiFi
In an emergency, walk to the nearest cafe or 7-Eleven. Most 7-Elevens have TRUE WiFi. The quality varies, but it can get you through a critical task. Starbucks and TRUE Coffee shops tend to have the most reliable cafe WiFi.
Condo Lobby/Common Area
Many Thai condos have WiFi in the lobby, pool area, and common rooms. If your in-unit internet is down, check if the building's common area WiFi is on a different ISP or connection.
VPN Considerations
Thailand does not block VPN usage, and many remote workers use them daily. However, there are some things to know:
Why Use a VPN in Thailand
- Access geo-restricted content: Some streaming services (Netflix, Hulu, BBC iPlayer) show different libraries based on your location
- Company requirements: Many employers require VPN use for security when connecting to corporate networks
- Banking access: Some Western banks flag logins from Thai IP addresses. A VPN to your home country prevents this
- Privacy: Encrypt your traffic on public WiFi networks (cafes, airports, coworking spaces)
VPN Speed Impact
Using a VPN typically reduces your speed by 10-30% depending on the server location. Connecting to a Singapore VPN server gives the best performance from Thailand (low latency, nearby). US or European servers will add 150-300ms of latency, which is noticeable on video calls. For general browsing and work, this is usually fine.
Recommended VPN services: ExpressVPN (has servers in Thailand and Singapore), NordVPN (good speeds), Mullvad (privacy-focused), and Tailscale (for connecting to your own devices/network).
Legal note: VPNs are legal in Thailand. The Computer Crime Act prohibits certain online activities, but using a VPN itself is not restricted. However, do not use a VPN to access content that is illegal in Thailand.
Real Speed Test Data
Based on Ookla Speedtest and community-reported data from digital nomads across Thailand (2025-2026 averages):
| Connection Type |
Download |
Upload |
Latency |
| Fiber 100 Mbps plan (Bangkok) |
95-105 Mbps |
45-55 Mbps |
3-8 ms |
| Fiber 500 Mbps plan (Bangkok) |
450-520 Mbps |
200-280 Mbps |
2-6 ms |
| Fiber 100 Mbps (Chiang Mai) |
90-100 Mbps |
40-50 Mbps |
5-12 ms |
| 5G mobile (Bangkok, AIS) |
300-700 Mbps |
30-80 Mbps |
8-15 ms |
| 4G mobile (national average) |
30-70 Mbps |
10-25 Mbps |
20-40 ms |
| Coworking WiFi (typical) |
100-300 Mbps |
50-100 Mbps |
3-10 ms |
| Cafe WiFi (typical) |
20-80 Mbps |
10-30 Mbps |
10-30 ms |
| Island fiber (Koh Samui/Lanta) |
50-150 Mbps |
20-50 Mbps |
10-20 ms |
International Latency
For video calls and real-time collaboration with US/European teams, latency matters. From Bangkok: Singapore ~30ms, Tokyo ~50ms, London ~180ms, New York ~220ms, San Francisco ~180ms. This is comparable to what you would experience from most Asian cities and is perfectly fine for Zoom, Google Meet, and Slack calls.