asn.dev

Observed topology

AS12963 VOLZ Scientific -Industrial Firm Volz Ltd

Residential RIPE

Upstreams 18 carry this network
Downstreams 79 this network carries
Adjacent (IPv4) 98
Adjacent (IPv6) 21
Upstream graph Who carries AS12963, and who carries them, drawn as a map up to the transit-free core. 4 exchanges Where AS12963 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 18

Networks observed carrying traffic for AS12963: 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
AS35297Dataline LLCUnclassifiedIPv4 IPv61,230
AS3257GTT Communications Inc.TransitIPv4340
AS50263A-Systems Sp. z o.o.UnclassifiedIPv4 IPv6206
AS12741Netia SAResidentialIPv4 IPv6204
AS174Cogent Communications, LLCTransitIPv4 IPv6177
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv682
AS3356Level 3 Parent, LLCTransitIPv4 IPv670
AS9002RETN LimitedUnclassifiedIPv468
AS24482SG.GSHostingIPv4 IPv640
AS3303Swisscom (Schweiz) AGResidentialIPv439

All 18 upstreams →

Transit

Downstream networks

All 79

Networks for which AS12963 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS8856UkrNet Ltd.HostingIPv4650
AS203284Gutsal Alexandr ViktorovichHostingIPv4324
AS39066OJSC KredobankUnclassifiedIPv4186
AS34190Microcom Ltd.UnclassifiedIPv4135
AS44526DOM TELECOM LLCUnclassifiedIPv4134
AS3254Lucky Net LtdUnclassifiedIPv4132
AS29382LIMITED LIABILITY COMPANY "UKRAINIAN INFOSYSTEMS"UnclassifiedIPv4132
AS35524Trans Traffic Ltd.UnclassifiedIPv4132
AS207577LARANS GROUP LLCUnclassifiedIPv4130
AS209912IC ARX INSURANCE PJSCUnclassifiedIPv4126

All 79 downstreams →

Adjacency

Adjacent networks

All 101

Every AS seen directly next to AS12963 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS35297Dataline LLCUnclassifiedIPv4 IPv64,467
AS3257GTT Communications Inc.TransitIPv4 IPv61,078
AS8856UkrNet Ltd.HostingIPv4650
AS50263A-Systems Sp. z o.o.UnclassifiedIPv4 IPv6578
AS12741Netia SAResidentialIPv4 IPv6565
AS9002RETN LimitedUnclassifiedIPv4 IPv6405
AS174Cogent Communications, LLCTransitIPv4 IPv6394
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6375
AS29382LIMITED LIABILITY COMPANY "UKRAINIAN INFOSYSTEMS"UnclassifiedIPv4354
AS203284Gutsal Alexandr ViktorovichHostingIPv4324

All 101 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-25 12:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.17M 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.