asn.dev

Observed topology

AS16637 MTNNS-AS

Mobile AFRINIC

Upstreams 27 carry this network
Downstreams 49 this network carries
Adjacent (IPv4) 91
Adjacent (IPv6) 35
Upstream graph Who carries AS16637, and who carries them, drawn as a map up to the transit-free core. 12 exchanges Where AS16637 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 27

Networks observed carrying traffic for AS16637: 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
AS1299Arelion Sweden ABTransitIPv43,789
AS6939Hurricane Electric LLCTransitIPv4 IPv63,689
AS3356Level 3 Parent, LLCTransitIPv4 IPv62,743
AS174Cogent Communications, LLCTransitIPv4 IPv6889
AS34549meerfarbig GmbH & Co. KGHostingIPv4372
AS24482SG.GSHostingIPv4 IPv6211
AS37100SEACOM LimitedUnclassifiedIPv4205
AS3741Dimension DataUnclassifiedIPv4198
AS9002RETN LimitedUnclassifiedIPv4148
AS37721Virtual Technologies & SolutionsResidentialIPv4116

All 27 upstreams →

Transit

Downstream networks

All 49

Networks for which AS16637 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS29465MTN NIGERIA Communication limitedMobileIPv4 IPv627,618
AS30986Scancom LimitedResidentialIPv4 IPv618,236
AS12091MTN SAUnclassifiedIPv48,235
AS30992MTN Network Solutions (Cameroon)UnclassifiedIPv4 IPv67,094
AS36974MTN COTE D'IVOIRE S.AUnclassifiedIPv4 IPv66,070
AS20294MTN UgandaUnclassifiedIPv4 IPv64,427
AS36972MTN SUDANUnclassifiedIPv44,188
AS9129MTN SAUnclassifiedIPv4 IPv64,039
AS14593Space Exploration Technologies CorporationResidentialIPv4 IPv63,448
AS36890MTN RwandacellUnclassifiedIPv4 IPv63,185

All 49 downstreams →

Adjacency

Adjacent networks

All 95

Every AS seen directly next to AS16637 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6939Hurricane Electric LLCTransitIPv4 IPv671,104
AS29465MTN NIGERIA Communication limitedMobileIPv4 IPv636,642
AS30986Scancom LimitedResidentialIPv4 IPv618,808
AS1299Arelion Sweden ABTransitIPv4 IPv618,385
AS3356Level 3 Parent, LLCTransitIPv4 IPv616,144
AS20294MTN UgandaUnclassifiedIPv4 IPv612,981
AS174Cogent Communications, LLCTransitIPv4 IPv610,455
AS9129MTN SAUnclassifiedIPv4 IPv69,774
AS12091MTN SAUnclassifiedIPv48,235
AS30992MTN Network Solutions (Cameroon)UnclassifiedIPv4 IPv67,452

All 95 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-16 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.23M 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.