asn.dev

Observed topology

AS23991 RANKS-AS-BD Ranks ITT Ltd.

Unclassified APNIC NSP

Upstreams 3 carry this network
Downstreams 8 this network carries
Adjacent (IPv4) 12
Adjacent (IPv6) 2
Upstream graph Who carries AS23991, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS23991 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS23991: the AS immediately before it in a routing path. Ranked by how many paths showed the relationship, which reflects how widely it is used, not how much traffic crosses it.

ASNetworkTypeFamiliesPaths seen
AS58715EARTH TELECOMMUNICATION (Pvt) LTD.UnclassifiedIPv4 IPv61,020
AS58717Summit Communications LtdUnclassifiedIPv4 IPv6682
AS139901Apple Communication Ltd.UnclassifiedIPv4133

Transit

Downstream networks

inferred

Networks for which AS23991 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS38210Ranks Telecom LimitedUnclassifiedIPv4442
AS154579Automas TechnologiesUnclassifiedIPv4143
AS135022Recursion Technologies LtdUnclassifiedIPv4121
AS58947Software Shop LimitedUnclassifiedIPv488
AS150399BRAC EPL STOCK BROKERAGE LIMITEDUnclassifiedIPv465
AS149630Election Commission SecretariatUnclassifiedIPv460
AS58814Bank Asia LimitedUnclassifiedIPv458
AS56264Tomato Web (Pvt) LimitedUnclassifiedIPv49

Adjacency

Adjacent networks

All 12

Every AS seen directly next to AS23991 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS58715EARTH TELECOMMUNICATION (Pvt) LTD.UnclassifiedIPv4 IPv61,611
AS58717Summit Communications LtdUnclassifiedIPv4 IPv61,050
AS38210Ranks Telecom LimitedUnclassifiedIPv4442
AS139901Apple Communication Ltd.UnclassifiedIPv4165
AS154579Automas TechnologiesUnclassifiedIPv4143
AS135022Recursion Technologies LtdUnclassifiedIPv4121
AS58947Software Shop LimitedUnclassifiedIPv488
AS150399BRAC EPL STOCK BROKERAGE LIMITEDUnclassifiedIPv465
AS149630Election Commission SecretariatUnclassifiedIPv460
AS58814Bank Asia LimitedUnclassifiedIPv458

All 12 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-30 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.49M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

Inferred from path position, not from any declaration by either party. A network appearing here is carrying these routes; whether that is a paid transit arrangement, a backup, or something else is not something routing data can tell you. Adjacency is not the same as peering. Being next to each other in a path covers paid transit, settlement-free peering and customer connections alike, and routing data cannot distinguish them. Treat this as "these networks exchange routes", nothing more specific.

Cross-check against RIPEstat or BGP.tools, which observe from a different and larger set of vantage points.