Does the JACS TD191-B work in Australia?
✔ 1 network good◐ 2 limited
Mostly. Good on Vodafone; limited on Optus and Telstra. The reasons are on each card.
- ✔ GoodMain bands B3 B5Evidence A · 3 sources
- ◐ LimitedLacks main band B28; no band below 1 GHz whyEvidence A · 4 sources
- ◐ LimitedLacks main band B28 whyEvidence A · 4 sources
- • B28 · missing
- • B5
- B8
- • B3
- B1
- B40 · missing
- B7
below 1 GHz (coverage) 1–2.7 GHz 3–7 GHz mmWave · dashed = the JACS TD191-B lacks it · • = a main band
Optus · Main bands on Optus: B3 B28. The JACS TD191-B lacks B28, so coverage or capacity will be patchy. Its coverage bands (B28) carry indoor and rural service; the JACS TD191-B has none of them.
Telstra · Main bands on Telstra: B3 B28. The JACS TD191-B lacks B28, so coverage or capacity will be patchy.
3G off on all networks (2024)
No legal ban, but operators restrict long-term roaming (evidence C, checked 25 Oct 2026)
Same model, other markets (networks good): ✔ United States 3/3 · ◐ India 2/4 · ◐ Singapore 3/4 · ✔ Saudi Arabia 3/3 · ✔ United Kingdom 4/4 · ◐ New Zealand 0/3 · ◐ Japan 1/4 · ✔ South Korea 3/3 · ✔ Canada 3/3
Similar models here: Quectel EC200U-EU · 3/3 good · Quectel EC25-AU · 3/3 good · Quectel EG21-G · 3/3 good
All 172 countries for the JACS TD191-B → · Australia: every network →
Sources for this answer (6) · evidence A = two or more sources, one official · B = one official source · C = industry and independent sources
- A TD191-B 4G LTE USB Dongle: product page and specifications (LTE FDD B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B20/B66/B71, TDD B39/B41) JACS Solutions · 5 Nov 2026
- A TD191-B datasheet (DS-TD191-B, Qualcomm MDM9x07, LTE Cat 4) JACS Solutions · Sep 2022
- C Frequency checker · Australia Kimovil · 2 Oct 2026
- B What LTE bands does an Aussie smartphone need (Telstra, Optus, Vodafone) iTWire · 2016
- A Expiring spectrum licences: licensees by band (850 MHz, 1800 MHz, 2.5 GHz, 700 MHz, 2.3 GHz, 3.4 GHz, 2 GHz) ACMA · Nov 2026
- B On-air 4G carriers by operator: Australia (carrier numbers observed, often with the licence record) Mast Database · mobile-spectrum-data (open data, LGPL-3.0) · 10 Oct 2026
Network by network
| Network | Verdict | Main bands | 4G bands (✓ supported · ½ partly · ✗ missing) | 5G | LTE-M · NB-IoT |
|---|---|---|---|---|---|
| Vodafone | ✔ Good 100% | B3 B5 | B1✓ B3✓ B5✓ | n78 n28 | LTE-M · NB-IoT |
| Optus | ◐ Limited 50% | B3 B28 | B1✓ B3✓ B7✓ B28✗ B40✗ | n78 n40 n257 | NB-IoT |
| Telstra | ◐ Limited 71% | B3 B28 | B1✓ B3✓ B7✓ B8✓ B28✗ | n78 n5 n257 | LTE-M · NB-IoT |
Verdicts come from the Band Atlas engine on the open data (CC BY 4.0, GitHub). Networks change: confirm with the operator before you deploy. This page is not legal or certification advice.
