asn.dev

Observed topology

AS23951 CITRA-AS-ID PT JEMBATAN CITRA NUSANTARA

Residential APNIC Cable/DSL/ISP

Upstreams 8 carry this network
Downstreams 23 this network carries
Adjacent (IPv4) 32
Adjacent (IPv6) 21
Upstream graph Who carries AS23951, and who carries them, drawn as a map up to the transit-free core. 15 exchanges Where AS23951 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS23951: 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
AS137366PT iForte Solusi Infotek - NAPUnclassifiedIPv4 IPv63,268
AS4800PT Aplikanusa LintasartaHostingIPv4 IPv62,377
AS136106PT. Mega Akses PersadaResidentialIPv4 IPv6641
AS7713PT Telekomunikasi IndonesiaResidentialIPv4 IPv6475
AS24482SG.GSHostingIPv4 IPv6123
AS38001NewMedia Express Pte LtdHostingIPv438
AS9930TIME dotCom Berhad No. 14, Jalan Majistret U1/26 Hicom Glenmarie Industrial Park 40150 Shah Alam Selangor, MalaysiaUnclassifiedIPv411
AS35280F5 Networks SARLHostingIPv49

Transit

Downstream networks

All 23

Networks for which AS23951 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS58487CV. Rumahweb IndonesiaUnclassifiedIPv4 IPv6419
AS138069PT CITRAWEB DIGITAL MULTISOLUSIHostingIPv4 IPv6379
AS55662CV. CITRAWEB NUSA INFOMEDIAUnclassifiedIPv4 IPv6298
AS55695Universitas Islam Negeri Sunan Kalijaga YogyakartaEducationIPv4 IPv6265
AS153077PT Citra Akses NusantaraUnclassifiedIPv4204
AS63293Facebook, Inc.HostingIPv4 IPv6199
AS135441PT. FASA CENTRA ARTAJAYAUnclassifiedIPv4195
AS131112Sekolah Tinggi Multi Media "MMTC" YogyakartaUnclassifiedIPv4 IPv6105
AS147129Universitas Aisyiyah SurakartaUnclassifiedIPv4 IPv6104
AS137368Poltekkes Kemenkes SurakartaUnclassifiedIPv4 IPv6103

All 23 downstreams →

Adjacency

Adjacent networks

All 33

Every AS seen directly next to AS23951 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS137366PT iForte Solusi Infotek - NAPUnclassifiedIPv4 IPv63,996
AS4800PT Aplikanusa LintasartaHostingIPv4 IPv62,900
AS136106PT. Mega Akses PersadaResidentialIPv4 IPv62,177
AS7713PT Telekomunikasi IndonesiaResidentialIPv4 IPv6475
AS58487CV. Rumahweb IndonesiaUnclassifiedIPv4 IPv6419
AS138069PT CITRAWEB DIGITAL MULTISOLUSIHostingIPv4 IPv6379
AS55662CV. CITRAWEB NUSA INFOMEDIAUnclassifiedIPv4 IPv6298
AS55695Universitas Islam Negeri Sunan Kalijaga YogyakartaEducationIPv4 IPv6265
AS153077PT Citra Akses NusantaraUnclassifiedIPv4204
AS63293Facebook, Inc.HostingIPv4 IPv6199

All 33 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-30 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.49M 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.