asn.dev

Observed topology

AS7670 CTNET Enecom,Inc.

Upstreams 8 carry this network
Downstreams 18 this network carries
Adjacent (IPv4) 26
Adjacent (IPv6) 13

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS7670: 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
AS2497Internet Initiative Japan Inc.UnclassifiedIPv4 IPv6380
AS2914NTT America, Inc.TransitIPv4 IPv6333
AS6939Hurricane Electric LLCTransitIPv4165
AS4637Telstra GlobalUnclassifiedIPv4 IPv6113
AS2516KDDI CORPORATIONMobileIPv4 IPv6103
AS2519ARTERIA Networks CorporationUnclassifiedIPv457
AS24482SG.GSHostingIPv4 IPv620
AS17639Converge ICT Solutions Inc.UnclassifiedIPv419

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.

Transit

Downstream networks

inferred

Networks for which AS7670 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS24251Iwakuni Cable Network CorporationUnclassifiedIPv41,563
AS18144Enecom,Inc.ResidentialIPv4 IPv61,377
AS55381CITY-CABLE SHUNAN CorporationResidentialIPv4474
AS37908KIBI Cable Television Co.,Ltd.UnclassifiedIPv4 IPv6308
AS63775YAKAGE CABLE TELEVISIONUnclassifiedIPv4301
AS131907Iwami Cablevision Co.,Ltd.UnclassifiedIPv4240
AS18272Benesse CorporationUnclassifiedIPv4204
AS146976Kvision Co.,Ltd.ResidentialIPv4 IPv6199
AS9374EDION CorporationResidentialIPv4176
AS18077Yamaguchi Cable Vision Co.,LtdResidentialIPv4149
AS23786San-in Cable Vision CO.,LTDUnclassifiedIPv4 IPv698
AS18124Okayama University of ScienceUnclassifiedIPv4 IPv697
AS131928Tottori Teletopia Co., Ltd.UnclassifiedIPv492
AS9991Hiroshima Shudo UniversityEducationIPv4 IPv680
AS17691NDS Co., Ltd.UnclassifiedIPv451
AS23618Ibara Broadcasting CompanyUnclassifiedIPv4 IPv650
AS55382Nagato city officeResidentialIPv44
AS23775Tamashima TV Inc.UnclassifiedIPv42

Adjacency

Adjacent networks

39 shown

Every AS seen directly next to AS7670 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS2497Internet Initiative Japan Inc.UnclassifiedIPv4 IPv62,087
AS24251Iwakuni Cable Network CorporationUnclassifiedIPv41,563
AS2914NTT America, Inc.TransitIPv4 IPv61,561
AS18144Enecom,Inc.ResidentialIPv4 IPv61,377
AS2516KDDI CORPORATIONMobileIPv4 IPv6893
AS4637Telstra GlobalUnclassifiedIPv4 IPv6836
AS6939Hurricane Electric LLCTransitIPv4590
AS2519ARTERIA Networks CorporationUnclassifiedIPv4500
AS55381CITY-CABLE SHUNAN CorporationResidentialIPv4474
AS37908KIBI Cable Television Co.,Ltd.UnclassifiedIPv4 IPv6308
AS63775YAKAGE CABLE TELEVISIONUnclassifiedIPv4301
AS131907Iwami Cablevision Co.,Ltd.UnclassifiedIPv4240
AS18272Benesse CorporationUnclassifiedIPv4204
AS146976Kvision Co.,Ltd.ResidentialIPv4 IPv6199
AS9374EDION CorporationResidentialIPv4176
AS18077Yamaguchi Cable Vision Co.,LtdResidentialIPv4149
AS24482SG.GSHostingIPv4 IPv6108
AS23786San-in Cable Vision CO.,LTDUnclassifiedIPv4 IPv698
AS18124Okayama University of ScienceUnclassifiedIPv4 IPv697
AS131928Tottori Teletopia Co., Ltd.UnclassifiedIPv492
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv680
AS9991Hiroshima Shudo UniversityEducationIPv4 IPv680
AS17691NDS Co., Ltd.UnclassifiedIPv451
AS23618Ibara Broadcasting CompanyUnclassifiedIPv4 IPv650
AS55382Nagato city officeResidentialIPv44
AS23775Tamashima TV Inc.UnclassifiedIPv42

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.

Interconnection

Exchange presence

recorded

Internet exchanges where Packet Clearing House has a port recorded for AS7670, largest fabric first. An exchange is shared switching where networks interconnect directly rather than paying a transit provider to carry traffic between them, so turning up at one is a deliberate choice about how this network wants to be reached. Each name opens that exchange's own page, with its peering LANs and every other network recorded on it. Recorded at 7 exchanges across 3 countries and 1 region.

ExchangeLocationTheir addressMember ports
BroadBand Internet eXchange TokyoTokyo, Japan101.203.88.178359
JPIX TokyoTokyo, Japan210.171.224.168259
BroadBand Internet eXchange SingaporeSingapore, Singapore103.231.152.153151
BroadBand Internet eXchange OsakaOsaka, Japan218.100.9.192132
JPIX OsakaOsaka, Japan103.246.232.168114
BroadBand Internet eXchange Hong KongHong Kong, China103.203.158.65101
Equinix Internet Exchange OsakaOsaka, Japan203.190.227.4428

Unlike the tables above, this is recorded rather than inferred. An address on a peering LAN is at that exchange by definition. Two carve-outs all the same. Member ports counts every participant at the exchange, not this network's ports, so read it as a size proxy. And an absent exchange means PCH has no record of it, not that the network is not there.

Provenance

Where this comes from

Derived from routing tables collected at 2026-08-08 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.02M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

Cross-check against RIPEstat or BGP.tools, which observe from a different and larger set of vantage points.

Exchange presence comes from a separate dataset: the directory collected 2026-08-09 by Packet Clearing House (https://www.pch.net/ixp/data), covering 1,327 exchanges and 93,164 recorded member ports, licensed CC BY-NC-SA 3.0.

PeeringDB is the better-known directory and is deliberately not the source here: its acceptable-use policy forbids the bulk storage this needs. The two answer different questions anyway. PeeringDB reports what an operator declares about itself; this reports what PCH has recorded.