subnet.im

AS139642Smart Link

BangladeshRegistryAPNIC

As of 27th September 2026, AS139642 (Smart Link), a network registered in Bangladesh with APNIC, originates 3 IPv4 prefixes covering 768 addresses. By IPv4 address space that makes it the 44,916th-largest of the 79,523 networks we see originating IPv4, and the 668th-largest of 1,544 in Bangladesh. It is seen behind 2 upstream networks, most often AS58717 (Summit Communications Ltd) and AS401322 (NetO Corp). 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

3

IPv6 prefixes

0

IPv4 addresses

768

IPv6 /64s

0

Upstream graph

The networks AS139642 is seen behind, one and two hops out, drawn from real AS paths.

AS139642Toward the internet core
Upstream graph for AS139642: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS139642Smart LinkThis networkAS58717Summit Communicat…AS401322NetO CorpAS9002RETN LimitedAS9498Bharti Airtel Ltd.AS174Cogent Communicat…AS4229Zenlayer Inc

Networks observed one and two hops upstream of AS139642 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

6

adjacent networks

Upstreams
233%
Peers
467%
Downstreams
00%

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

Upstreams of AS139642
NetworkCountryRelationshipPathsVantage pts
AS58717Summit Communications LtdBDPeer16281
AS401322NetO CorpUSPeer8080

Prefixes

The largest blocks AS139642 originates, widest first.

Largest prefixes originated by AS139642
PrefixAddressesVisibility
103.141.200.0/2425681/81
103.141.201.0/2425681/81
207.180.6.0/2425680/81

Routing health

How AS139642'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%3
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%3
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 3 prefixes

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Withdrawn130.12.102.0/2421st Sept 2026
  • Withdrawn142.248.62.0/2421st Sept 2026
  • Withdrawn160.238.97.0/2421st Sept 2026
  • Withdrawn185.179.217.0/2421st Sept 2026
  • Withdrawn185.255.56.0/2421st Sept 2026
  • Withdrawn192.231.109.0/2421st Sept 2026
  • Withdrawn194.34.175.0/2421st Sept 2026
  • Withdrawn198.20.139.0/2421st Sept 2026
  • Withdrawn212.134.128.0/2421st Sept 2026
  • Withdrawn31.56.1.0/2421st Sept 2026
  • Withdrawn64.204.8.0/2421st Sept 2026
  • Withdrawn79.183.0.0/2421st Sept 2026

0 announced and 18 withdrawn in all; the most recent are shown.

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