Class B

Cellular Equipment NBTC Certification

Cellular modules, modems, and terminal equipment sold in Thailand require Class B (Certification) — the highest NBTC approval category. This page covers manufacturers of cellular modules and terminal equipment intended for integration into other products or for direct use as data devices. Base station installation and network infrastructure management are operator responsibilities and are outside the scope of this page.

Who This Page Is For

This page is for overseas manufacturers and importers of cellular telecommunications and RF equipment: cellular modules embedded in devices, USB modems and mobile broadband devices, cellular terminal equipment, and similar products that connect to mobile networks. The applicable NBTC applications cover both user-side terminal equipment and base station / repeater equipment, all of which require Class B certification.

Consumer smartphones and tablets are covered on a separate page. If your product is a consumer handset, see the Smartphone & Tablet page.

Certification Requirements

All cellular equipment requires Class B certification. The applicable standard depends on the cellular technology. Equipment supporting multiple standards requires compliance with each applicable standard — NBTC issues a single certificate covering all technologies, with the class determined by the highest applicable class (Class B in all cases for cellular equipment).

GSM Terminal Equipment — NBTC TS 1004-2560

Frequency Band	Certification
880–960 MHz	Class B
1710–1880 MHz	Class B
1850–1990 MHz	Class B

GSM Base Station and Repeater — NTC TS 1008-2549

Frequency Band	Certification
880–960 MHz	Class B
1710–1880 MHz	Class B
1850–1990 MHz	Class B

WCDMA Terminal Equipment — NBTC TS 1015-2560

Frequency Band	Certification
824–894 MHz	Class B
880–960 MHz	Class B
1710–1880 MHz	Class B
1920–2170 MHz	Class B

WCDMA Base Station and Repeater — NBTC TS 1014-2565

Frequency Band	Certification
824–884 MHz	Class B
895–960 MHz	Class B
1710–1880 MHz	Class B
1920–2170 MHz	Class B

LTE Terminal Equipment — NBTC TS 1027-2560

Frequency Band	Certification
703–803 MHz	Class B
824–894 MHz	Class B
880–960 MHz	Class B
1710–1880 MHz	Class B
1920–2170 MHz	Class B
2300–2400 MHz	Class B
2496–2960 MHz	Class B
5150–5925 MHz	Class B

LTE Base Station and Repeater — NBTC TS 1026-2565

Frequency Band	Certification
703–803 MHz	Class B
824–894 MHz	Class B
880–960 MHz	Class B
1710–1880 MHz	Class B
1920–2170 MHz	Class B
2300–2400 MHz	Class B
2496–2960 MHz	Class B

5G NR Terminal Equipment — NBTC TS 1036-2563

Frequency Band	Certification
703–803 MHz	Class B
824–894 MHz	Class B
880–960 MHz	Class B
1710–1880 MHz	Class B
1920–2170 MHz	Class B
2300–2400 MHz	Class B
2496–2960 MHz	Class B
24250–27500 MHz	Class B

5G NR Base Station — NBTC TS 1037-2563

Frequency Band	Certification
703–803 MHz	Class B
824–894 MHz	Class B
880–960 MHz	Class B
1710–1880 MHz	Class B
1920–2170 MHz	Class B
2300–2400 MHz	Class B
2496–2960 MHz	Class B
24250–27500 MHz	Class B

A single NBTC application covers all cellular standards and bands in the product. NBTC issues one certificate covering all technologies, with the certification class determined by the highest applicable class — Class B in all cases for cellular equipment.

What This Covers

This page covers manufacturers of cellular telecommunications and RF equipment intended for sale in Thailand. Typical products include:

Cellular modules for embedded IoT and M2M applications
USB dongles and mobile broadband modems
Cellular industrial routers and gateways
LTE and 5G fixed wireless access (FWA) terminals
Cellular repeaters for in-building coverage
Small cell and femtocell equipment

Base station installation scope: The base station and repeater applications listed above apply to manufacturers of that equipment. Installation and operation of base stations is a network operator responsibility governed by separate licensing requirements and is outside the scope of NBTC equipment certification for manufacturers.

Required Documents

Technical specification / datasheet with wireless communication details
Product photographs (exterior and label)
Test reports from accredited laboratories outside Thailand — RF, Safety, and EMF/SAR as applicable
ISO/IEC 17025 accreditation certificate and laboratory scope
Authorised declaration (manufacturer or authorised representative)

Class B certification requires a local representative — a Thai juristic person holding a valid NBTC trade license and NBTC Supplier Code — to file on behalf of the overseas manufacturer. Zergo provides this as part of its certification service.

Estimated Timeline

Class B Certification:Approximately 6 weeks from submission

Consumer cellular end-user devices

Smartphone & Tablet

→

IoT devices on 920 MHz / Wi-Fi / Bluetooth

IoT Device

→

Ready to certify your cellular equipment for Thailand?

Zergo manages the complete NBTC Class B certification process for cellular equipment — from multi-standard document preparation to local representative filing and approval delivery.

View NBTC Certification Service →