subnet.im

AS45588Bangladesh Telecommunications Company Limited (BTCL), Nationwide PSTN Operator and Data and Internet Service Provider.

BangladeshRegistryAPNICTypeEyeball

As of 11th November 2026, AS45588 (Bangladesh Telecommunications Company…), an access network registered in Bangladesh with APNIC, originates 113 IPv4 prefixes covering 53k addresses and 6 IPv6 prefixes. By IPv4 address space that makes it the 4,385th-largest of the 80,743 networks we see originating IPv4, and the 10th-largest of 1,567 in Bangladesh. It is seen behind 1 upstream network, most often AS17494 (Bangladesh Telegraph & Telephone Board), and in front of 15 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

113

IPv6 prefixes

6

IPv4 addresses

53k

IPv6 /64s

50.5M

Upstream graph

The networks AS45588 is seen behind, one and two hops out, drawn from real AS paths.

AS45588Toward the internet core
Upstream graph for AS45588: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS45588Bangladesh Teleco…This networkAS17494Bangladesh Telegr…AS2914NTT America, Inc.AS9498Bharti Airtel Ltd.

Networks observed one and two hops upstream of AS45588 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

32

adjacent networks

Upstreams
13%
Peers
1650%
Downstreams
1547%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS45588
NetworkCountryRelationshipPathsVantage pts
AS17494Bangladesh Telegraph & Telephone BoardBDPeer10,556139

Prefixes

All 119

The largest blocks AS45588 originates, widest first.

Largest prefixes originated by AS45588
PrefixAddressesVisibility
180.211.128.0/198.2k76/76
180.211.160.0/198.2k76/76
180.211.192.0/212k76/76
180.211.248.0/212k76/76
114.130.132.0/221k76/76
114.130.144.0/221k76/76
114.130.148.0/221k76/76
114.130.152.0/221k76/76
203.112.200.0/221k76/76
203.112.212.0/221k76/76

Routing health

How AS45588's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid100.0%119
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%119
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 113 prefixes

IPv6 — 6 prefixes

  • /4016.8M × /6450.0%3
  • /4865.5k × /6450.0%3

Recent changes

Announcements that started or stopped since 12th Oct 2026.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.