asn.dev

Observed topology

AS20712 AS20712 Andrews & Arnold Ltd

Residential RIPE Cable/DSL/ISP

Upstreams 23 carry this network
Downstreams 21 this network carries
Adjacent (IPv4) 35
Adjacent (IPv6) 28
Upstream graph Who carries AS20712, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS20712 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 23

Networks observed carrying traffic for AS20712: 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 ABTransitIPv4 IPv61,593
AS2914NTT America, Inc.TransitIPv4 IPv6984
AS174Cogent Communications, LLCTransitIPv4 IPv6852
AS6939Hurricane Electric LLCTransitIPv4 IPv6833
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6282
AS50304Blix Solutions ASUnclassifiedIPv4164
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv6100
AS24482SG.GSHostingIPv4 IPv6100
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv6100
AS48185team.blue NVUnclassifiedIPv4 IPv6100

All 23 upstreams →

Transit

Downstream networks

All 21

Networks for which AS20712 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS48444Internet LtdUnclassifiedIPv4280
AS48901DSNET LtdUnclassifiedIPv4 IPv6214
AS209669Ashley PrimoHostingIPv4 IPv6159
AS198219Charlie CamilleriUnclassifiedIPv4 IPv6108
AS215833Ablative Consulting LtdUnclassifiedIPv4 IPv693
AS12290Exonetric Consulting LtdHostingIPv4 IPv692
AS47988Charles AllomUnclassifiedIPv4 IPv692
AS199165Shibboleet LtdUnclassifiedIPv4 IPv692
AS207754James ColderwoodUnclassifiedIPv4 IPv692
AS209600Livefix Technical Solutions Group LimitedUnclassifiedIPv666

All 21 downstreams →

Adjacency

Adjacent networks

All 44

Every AS seen directly next to AS20712 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv62,059
AS2914NTT America, Inc.TransitIPv4 IPv61,211
AS6939Hurricane Electric LLCTransitIPv4 IPv61,139
AS174Cogent Communications, LLCTransitIPv4 IPv61,069
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6380
AS48444Internet LtdUnclassifiedIPv4280
AS48901DSNET LtdUnclassifiedIPv4 IPv6214
AS50304Blix Solutions ASUnclassifiedIPv4202
AS209669Ashley PrimoHostingIPv4 IPv6159
AS24482SG.GSHostingIPv4 IPv6140

All 44 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-29 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.36M 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.