AS45588 Bangladesh Telecommunications Company Limited (BTCL), Nationwide PSTN Operator and Data and Internet Service Provider.

BTCL-ISP-AS - Bangladesh Telecommunications Company Limited (BTCL), Nationwide PSTN Operator and Data and Internet Service Provider. · registered in Bangladesh

IPv4 addresses42,75262 prefixes · 0.001% of announced IPv4

Rank in Bangladesh#4largest network in BD by IPv4 space, of 1,548 · 2.06% of BD

Rank worldwide#4,179of 79,396 networks with IPv4

IPv6771 x /484 prefixes

CountryBangladesh1,552 ASNs registered there

Open AS45588 in ASN lookup Look up an IP in this network (114.130.128.1) All networks in Bangladesh

IPv4 prefixes

All 62 prefixes, in address order.

114.130.128.0/20
114.130.144.0/21
114.130.152.0/24
114.130.153.0/24
114.130.154.0/23
114.130.156.0/22
114.130.160.0/23
114.130.162.0/24
114.130.164.0/23
114.130.166.0/24
114.130.168.0/23
114.130.171.0/24
114.130.172.0/22
114.130.176.0/23
114.130.180.0/22
114.130.184.0/21
180.211.128.0/23
180.211.130.0/23
180.211.132.0/22
180.211.136.0/23
180.211.138.0/23
180.211.140.0/22
180.211.144.0/22
180.211.148.0/22
180.211.152.0/23
180.211.154.0/24
180.211.155.0/24
180.211.156.0/24
180.211.157.0/24
180.211.158.0/23
180.211.160.0/21
180.211.168.0/22
180.211.172.0/23
180.211.174.0/23
180.211.176.0/22
180.211.180.0/23
180.211.182.0/23
180.211.184.0/21
180.211.192.0/22
180.211.196.0/23
180.211.198.0/23
180.211.205.0/24
180.211.207.0/24
180.211.210.0/23
180.211.214.0/23
180.211.219.0/24
180.211.227.0/24
180.211.228.0/24
180.211.232.0/23
180.211.237.0/24
180.211.238.0/23
180.211.243.0/24
180.211.247.0/24
180.211.248.0/23
180.211.250.0/24
180.211.251.0/24
180.211.252.0/22
203.112.200.0/22
203.112.206.0/24
203.112.209.0/24
203.112.210.0/23
203.112.212.0/22

IPv6 prefixes

All 4 prefixes.

2407:5000:1::/48
2407:5000:2::/47
2407:5000:800::/40
2407:5000:7000::/39

Other ASNs named Bangladesh Telecommunications Company Limited (BTCL), Nationwide PSTN Operator and Data and Internet Service Provider.

1 other network uses the same organisation name; together with AS45588 they announce 43,008 IPv4 addresses.

ASNNameIPv4 addresses

AS45607BTCL-SATELLITE-AS - Bangladesh Telecommunications Company Limited (BTCL), Nationwide PSTN Operator and Data and Internet Service Provider. BD256

Similar-sized networks in Bangladesh

ASNNameIPv4 addresses

AS24342#1 BRAC-BDMAIL-AS-BD - BRACNet Limited63,232

AS23956#2 AMBERIT-BD-AS - AmberIT Limited54,784

AS23688#3 LINK3-TECH-AS-BD-AP - Link3 Technologies Ltd.53,760

AS7565#5 BDCOM-BD - Rangs Nilu Square, 5th Floor, House 75, Road 5/A, Dhanmondi R/A, Dhaka 120940,960

AS23923#6 AGNI-AS - Agni Systems Limited32,000

AS17494#7 BTTB-AS-AP - Telecom Operator & Internet Service Provider as well31,744

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources