asn.dev

Observed topology

AS13335 CLOUDFLARENET

Hosting ARIN

Upstreams 228 carry this network
Downstreams 1,042 this network carries
Adjacent (IPv4) 1,254
Adjacent (IPv6) 242
Upstream graph Who carries AS13335, and who carries them, drawn as a map up to the transit-free core. 247 exchanges Where AS13335 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 228

Networks observed carrying traffic for AS13335: 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 IPv623,536
AS3356Level 3 Parent, LLCTransitIPv4 IPv618,834
AS174Cogent Communications, LLCTransitIPv4 IPv617,054
AS2914NTT America, Inc.TransitIPv4 IPv613,087
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4 IPv612,153
AS3257GTT Communications Inc.TransitIPv4 IPv610,222
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv67,477
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv67,223
AS1403EBOXResidentialIPv4 IPv64,893
AS7018AT&T Enterprises, LLCResidentialIPv4 IPv64,517

All 228 upstreams →

Transit

Downstream networks

All 1,042

Networks for which AS13335 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS135377UCLOUD INFORMATION TECHNOLOGY (HK) LIMITEDUnclassifiedIPv423,344
AS209242Cloudflare London, LLCHostingIPv4 IPv617,943
AS30103Zoom Video Communications, IncUnclassifiedIPv410,520
AS58791GMO Internet, Inc.HostingIPv410,270
AS6307American Express CompanyUnclassifiedIPv47,670
AS7979Servers.com, Inc.HostingIPv47,098
AS8698BUILDING SOCIETYUnclassifiedIPv46,955
AS270631Totvs S.A.UnclassifiedIPv46,664
AS132839POWER LINE DATACENTERUnclassifiedIPv46,023
AS146943Tier 4 Cloud ServicesHostingIPv45,018

All 1,042 downstreams →

Adjacency

Adjacent networks

All 1,254

Every AS seen directly next to AS13335 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4 IPv639,270
AS174Cogent Communications, LLCTransitIPv4 IPv635,157
AS2914NTT America, Inc.TransitIPv4 IPv631,554
AS1299Arelion Sweden ABTransitIPv4 IPv631,459
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv626,580
AS135377UCLOUD INFORMATION TECHNOLOGY (HK) LIMITEDUnclassifiedIPv423,344
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4 IPv622,660
AS1403EBOXResidentialIPv4 IPv618,057
AS209242Cloudflare London, LLCHostingIPv4 IPv617,943
AS34927iFog GmbHHostingIPv4 IPv617,423

All 1,254 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-26 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.14M 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.