asn.dev

Observed topology

AS137557 IGCL-AS-AP - International gateway co., Ltd

Unclassified APNIC

Upstreams 8 carry this network
Downstreams 17 this network carries
Adjacent (IPv4) 29
Adjacent (IPv6) 19
Upstream graph Who carries AS137557, and who carries them, drawn as a map up to the transit-free core. 3 exchanges Where AS137557 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS137557: 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
AS6939Hurricane Electric LLCTransitIPv4 IPv670
AS2914NTT America, Inc.TransitIPv4 IPv68
AS174Cogent Communications, LLCTransitIPv4 IPv67
AS45430SBN-IIG/AWN-IIG transit providerUnclassifiedIPv4 IPv67
AS58453China Mobile International LimitedUnclassifiedIPv4 IPv65
AS24482SG.GSHostingIPv4 IPv62
AS38001NewMedia Express Pte LtdHostingIPv4 IPv62
AS17639Converge ICT Solutions Inc.UnclassifiedIPv41

Transit

Downstream networks

All 17

Networks for which AS137557 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS4618Internet Thailand Company LimitedResidentialIPv42,700
AS984OCTOPUS WEB SOLUTION INCHostingIPv4 IPv62,117
AS136255Telecom International Myanmar Co., LtdUnclassifiedIPv4 IPv61,341
AS9287True Internet Data Center Company LimitedHostingIPv4 IPv6852
AS140867International gateway co., LtdUnclassifiedIPv4315
AS63989DE-CORPUnclassifiedIPv4 IPv6295
AS132708VNG Singapore PTE. LTD.UnclassifiedIPv4235
AS133524Global Technology Co., Ltd.UnclassifiedIPv4197
AS138934SLT Network Co.,LTDUnclassifiedIPv4185
AS56309Siamdata Communication Co.,Ltd.UnclassifiedIPv4 IPv6161

All 17 downstreams →

Adjacency

Adjacent networks

All 29

Every AS seen directly next to AS137557 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6939Hurricane Electric LLCTransitIPv4 IPv610,503
AS4618Internet Thailand Company LimitedResidentialIPv42,702
AS984OCTOPUS WEB SOLUTION INCHostingIPv4 IPv62,183
AS136255Telecom International Myanmar Co., LtdUnclassifiedIPv4 IPv61,841
AS136975Global TechnologyUnclassifiedIPv4 IPv61,745
AS151210NEXGENET COMPANY LIMITEDUnclassifiedIPv4 IPv61,278
AS174Cogent Communications, LLCTransitIPv4 IPv6957
AS9287True Internet Data Center Company LimitedHostingIPv4 IPv6852
AS2914NTT America, Inc.TransitIPv4 IPv6842
AS63989DE-CORPUnclassifiedIPv4 IPv6667

All 29 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-14 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.46M 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.