Some tidbits:
- Launched in 2016 as webe, rebranded to unifi in 2017.
- Operated by TM Technology Services Sdn Bhd (formerly known as Webe Digital Sdn Bhd), a subsidary of Telekom Malaysia.
- Operates own 4G LTE network.
- Offers 5G through Digital Nasional Berhad’s network
- 4G LTE spectrum acquired from previous P1 & TMgo network.
- Uses Maxis 2G nationwide. Some places still uses Celcom’s 2G instead.
- Uses Maxis 4G LTE for places outside unifi’s own 4G LTE coverage. (unifi Air users are not allowed to use Maxis network)
- MCC/MNC (PLMN) code: 502 153
- unifi Mobile & unifi Air (sans Maxis’s coverage) uses same tower & coverage. The reason unifi have separate unifi Air coverage in their website is to just show places with 4G LTE B40 2300MHz, to ensure optimal performance for unifi Air SIMs by preferring them to use in that area. unifi Air SIMs can connect to LTE B5 just like unifi Mobile prepaid/postpaid SIMs can connect to LTE B40. However, unifi Air userscannot access Maxis network.
5G NR bands:
It seems like all prepaid/postpaid plans has 5G access enabled by default. For unifi Air, you need to subscribe to RM149/month plan for 5G access.
4G LTE bands:
| Band number | Frequency | Duplex mode | Bandwidth |
| 5 | 850MHz | FDD | – 2x5MHz (primary config) – 2x3MHz – 2x10MHz (read notes below) |
| 38 | 2600MHz | TDD | 20MHz |
| 40 | 2300MHz | TDD | *20MHz/10MHz |
unifi’s B40 has 4×4 MIMO support (at certain places?).
Note that unifi’s B38 is only available in small number of places throughout Malaysia.
Note that unifi also uses either of these 3 configs for each of their B5 sites:
- 2x5MHz only
- 2x5MHz + 2x3MHz
- 2x10MHz only (unifi will eventually convert all B5 sites to this)
unifi looovvveeesss to priortise band 40 over band 5, even if band 5-only tower is way closer than the user compared to band 40 tower.
Maxis 4G MOCN
- unifi mobile users can access Maxis’s network outside unifi’s own 4G coverage via MOCN and domestic roaming.
- unifi users can connect to all of Maxis 4G LTE bands (1/3/7/8) just fine.
- unifi Air users are blocked from accessing Maxis’s network.
- It is known that speeds while on Maxis’s network is capped to 80Mbps.
VoLTE/VoWiFi support
- Yes (only for Unifi Mobile SIMs)
- Unifi Air SIMs aren’t provisioned with VoLTE/voice support as it is a data-only plan.
- Unifi is more friendly in terms of VoLTE support, so theoretically any phone with VoLTE support should work with unifi Mobile (some devices might need to do some trickery like changing MBN files, editing system files, etc).
- They have a list of devices which has native/built-in VoLTE support for their network
- VoWiFi (Voice over WiFi) is in testing phase on certain prepaid/postpaid lines with various devices are supported.
APN settings:
- Name: unifi
- APN: unifi
- APN type: default
- APN protocol: IPv4/IPv6
Notes:
- Call forwarding & voicemail is not supported (yet)
- Unifi Air SIMs seems to have lower network priority than Unifi Mobile prepaid/postpaid SIMs.
- Unifi supports Google Play Direct Carrier Billing (except Unifi Air SIMs).
Technical details of Unifi’s Mobile network:
LTE eNB pattern:
Unifi Mobile/Air uses 6-digit & 4-digit LTE eNB numbering. 4 digit numbering mostly applies to towers inside TM’s Exchange (ibusawat). 6-digit is used nationwide.
For 6-digit eNB numbering, first & second digits denotes region as per below:
| First & second digit eNB | Region (state/federal territories) |
| 11xxxx | Kuala Lumpur, Putrajaya |
| 12xxxx | Selangor |
| 13xxxx | Negeri Sembilan |
| 21xxxx | Penang |
| 22xxxx/28xxxx | Perak |
| 23xxxx/27xxxx | Kedah |
| 24xxxx/26xxxx | Perlis |
| 31xxxx | Johor |
| 32xxxx | Malacca |
| 41xxxx/49xxxx | Pahang |
| 42xxxx/48xxxx | Terengganu |
| 43xxxx/47xxxx | Kelantan |
| 51xxxx/59xxxx | Labuan |
| 52xxxx/58xxxx | Sabah |
| 53xxxx/57xxxx | Sarawak |
LTE EARFCN used:
| LTE Bands | EARFCNs |
| **5 – 850MHz | 5MHz B/W: 2425 3MHz B/W: 2465 10MHz B/W: 2450 |
| 38 – 2600MHz | 37900 |
| 40 – 2300MHz | *39350/39494 |
LTE sector (LCID) number pattern:
- Very useful if your device doesn’t support band reading but does support sector (LCID) reading.
| LTE bands | Sector/LCID number |
| 5 – 850MHz | 5MHz B/W: 0/1/2/11/12/13 3MHz B/W: 71/72/73 10MHz B/W: 11/12/13 |
| 38 – 2600MHz | 20/21/22 |
| 40 – 2300MHz | 31/32/33/34/35/36 |
Known LTE+/4G+ Carrier Aggergation combos:
| CA combos | Frequency used | CA type | Total Bandwidth |
| 40 + 40 (CA_40C) | 2300MHz + 2300MHz | Intraband | 30MHz |
| 5 + 40 + 40 (CA_5A_40C) | 850MHz + 2300MHz + 2300MHz | Interband | 35MHz |
| 5 + 40 (CA_5A_40A) | 850MHz + 2300MHz | Interband | 25MHz |
Sources used: CellMapper/Halberd Bastion/my own findings
Encik Kunci 