Data as of Nov 6, 2026
123.49.32.0/22
No anonymizer space · no proxy exits in 30 daysTelecom Operator & Internet Service Provider as well · space held by Bangladesh Telegraph & Telephone Board
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 123.49.0.0/18 | 16,384 | BTTB | Bangladesh Telegraph & Telephone Board (ORG-BTTB1-AP) · BD | ALLOCATED PORTABLE | — | irt@ |
| └ 123.49.32.0/24 | 256 | BTCL-DHAKA-Government-Network | BTCL Dhaka government office network address | ALLOCATED NON-PORTABLE | — | irt@ |
| └ 123.49.32.0/29 | 8 | MAYA-CYBER | Maya Cyber Cafe, Rangpur | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.32.8/30 | 4 | CABINET | Cabinet Division, Bangladesh Secretariat | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.32.12/30 | 4 | CHARTERED | Chartered Computer, Rajshahi | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.32.16/29 | 8 | NAYA-DIGANTA | The Daily Naya Diganta | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.32.24/29 | 8 | NBR | National Board of Revenue | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.32.32/27 | 32 | MLBNET | MLB Net, Moulavi Bazar | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.32.64/27 | 32 | BCC-DIITA | Bangladesh Computer Council | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.32.96/27 | 32 | PTISL | Peoples Telecommunication and Information Systems Ltd | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.32.128/27 | 32 | ICT-INCBTR | ICT Incubator, Dhaka | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.32.160/30 | 4 | PLUS-COSTA | Ministry of Land, Coastal Land Zoning Project | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.32.164/30 | 4 | AGRI-BUSINESS | Agribusiness Project. Ministry of Agriculture. Govt. of Bangladesh. | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.32.176/28 | 16 | CMC-XMC | CMC and XMC. Boropukuria Cole Mining Company, Dinajpur | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.32.192/27 | 32 | SKYLINK-ISP | Sky Link ISP, Rajshahi | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.32.224/27 | 32 | SAU-EDU-BD | Sher-E-Bangla Nagar Agri University | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.33.0/29 | 8 | KH-CN | K. Hossain Cable Network Ltd | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.33.8/29 | 8 | MF-ASIA | M. F. Asia Ltd | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.33.16/28 | 16 | UNIT19-DGFI | DGFI Training School (Unit-19) | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.33.48/30 | 4 | BPSC | Bangladesh Public Service Commission | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.33.52/30 | 4 | AUST-EDU | Ahsanullah University of Science & Technology, Rajshahi | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.33.56/30 | 4 | NMCI | NMCI (BD) Ltd. | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.33.60/30 | 4 | RHD | Roads and Highways Department | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.33.64/29 | 8 | MOFA | Ministry of Foreign Affairs | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.33.72/29 | 8 | SEAGULL | Hotel Seagull, Cox's Bazar | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.33.80/28 | 16 | CPA-CTG | Chittagong Port Authority | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.33.96/29 | 8 | RDRS | RDRS, Rangpur | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.33.124/30 | 4 | SHOHAGH | Shohagh Telecom | ALLOCATED NON-PORTABLE | — | irt@ |
| └ 123.49.33.128/26 | 64 | SANGSAD | Bangladesh Parliament Secretariat | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.33.192/27 | 32 | ASIA-INFOSYS | Asia Infosys Ltd. | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.33.224/27 | 32 | MILLENNIUM-COMPUTERS | Millennium Computers and Networking | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123. | 12 | IUT-EDU | Inslamic University of Technology | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.34.12/30 | 4 | SEC-GOV-BD | Securities and Exchange Commossion | ALLOCATED NON-PORTABLE | — | irt@ |
| └ 123.49.34.16/28 | 16 | RUET | Rajshahi University of Engineering & Technologyi, Dhaka | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.34.32/28 | 16 | SSL-AP | Software Shop Limited | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.34.48/29 | 8 | IUB-DHK | Independent University of Bangladesh. Dhaka | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.34.56/29 | 8 | BRRI | Bangladesh Rice Research Institute. Dhaka | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.34.64/27 | 32 | CTGTEL | Chittagong Telecom Services Ltd. | ALLOCATED NON-PORTABLE | — | irt@ |
| └ 123.49.34.96/27 | 32 | TELEBA | MIS Teleba | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.34.128/29 | 8 | BAEC | 10 Karwan Bazar | ALLOCATED NON-PORTABLE | — | irt@ |
| └ 123.49.34.136/30 | 4 | EED | Education Engineering Department. Dhaka | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.34.140/30 | 4 | OX-INT-SCL | Oxford International School | ALLOCATED NON-PORTABLE | — | irt@ |
| └ 123.49.34.144/28 | 16 | BSMRAU | Bangabandhu Sheikh Mujibur Rahmhan Agricultural University | ALLOCATED NON-PORTABLE | — | irt@ |
| └ 123.49.34.160/28 | 16 | CHIEN | Chien Cyber Cafe. Barishal | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.34.176/28 | 16 | SCS | Sylhet Communications Systems. Sylhet | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.34.224/29 | 8 | MAYA-CYBER | Maya Cyber Cafe. Rangpur | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.34.232/29 | 8 | BAU | Bangladesh Agriculture University, Mymensingh. | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123.49.34.240/28 | 16 | CUET | Chittagong University of Engineering and Technology. Chittagong | ASSIGNED NON-PORTABLE | — | irt@ |
| └ 123. | 1,792 | BTCL-DHAKA-Government-Network | BTCL Dhaka government office network address | ALLOCATED NON-PORTABLE | — | irt@ |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
1,024 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Business | 692 | 68% | 46 | |
| Residential | 332 | 32% | 5 |
Network & registry
Announced by
Covering announcement 123.49.0.0/18
- Prefix
- 123.49.0.0/18
- Announced by
- AS17494 Telecom Operator & Internet Service Provider as well
- Type
- Residential
- Proxy exits
- 103
- Always-on exits
- 10
- RPKI
- RPKI valid
- Netname
- BTTB
- Registrant
- Bangladesh Telegraph & Telephone Board
- RIR
- APNIC
Origin network
AS17494
BD
- Name
- Telecom Operator & Internet Service Provider as well
- Type
- Internet provider
- Registered
- Dec 7, 2000
- Domain
- btcl.gov.bd
- Website
- www.btcl.gov.bd/en
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 123.49.0.0/18
123.49.0.0/18
Routing history
- Pattern
- Stable
- First seen
- Nov 2006
- Current origin since
- Nov 2006 · 20 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 123.49.0.0/18 | AS17494 | /24 | APNIC | RPKI valid |
| 123.49.0.0/18 | AS45588 | /24 | APNIC | Another network |
Whois
Registration for this announcement
- Range
- 123.
49. 0. 0/ 18 - Netname
- BTTB
- Registrant
- Bangladesh Telegraph & Telephone Board
- Registrant country
- BD
- Organization
- Not stated by the registry
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Jan 18, 2021
- Maintainer
- APNIC-HM
- RIR
- APNIC
- Country
- BD
- Delegated
- Sep 27, 2006
- Status
- assigned
Report abuse
Abuse contact
- irt@
btcl. gov. bd - Name
- ABUSE BTTBBD
- Handle
- AB1235-AP