Observed topology
AS9457 DREAMX-AS DREAMLINE CO.
Transit
Upstream networks
Networks observed carrying traffic for AS9457: 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.
| AS | Network | Type | Families | Paths seen |
|---|---|---|---|---|
| AS174 | Cogent Communications, LLC | Transit | IPv4 IPv6 | 5,182 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 | 832 |
| AS3786 | LG DACOM Corporation | Unclassified | IPv4 | 246 |
| AS2914 | NTT America, Inc. | Transit | IPv4 | 216 |
| AS24482 | SG.GS | Hosting | IPv4 | 72 |
| AS9957 | KINX | Hosting | IPv4 | 38 |
| AS9002 | RETN Limited | Unclassified | IPv4 | 10 |
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
Networks for which AS9457 was observed as the last hop before the origin, meaning it appears to provide them transit.
| AS | Network | Type | Families | Paths seen |
|---|---|---|---|---|
| AS38676 | flexnetworks | Unclassified | IPv4 | 7,418 |
| AS17878 | DREAMMARK1 | Unclassified | IPv4 | 3,420 |
| AS17608 | ABN | Unclassified | IPv4 | 2,576 |
| AS10054 | CMB Kwangju Broadcasting | Residential | IPv4 | 1,920 |
| AS38684 | CMB Daejeon Broadcasting Co,.Ltd | Unclassified | IPv4 | 1,823 |
| AS38133 | CMB | Unclassified | IPv4 | 1,191 |
| AS38661 | abcle | Unclassified | IPv4 | 1,082 |
| AS38680 | CMB | Unclassified | IPv4 | 912 |
| AS9781 | GREEN CABLE TELEVISION STATION | Residential | IPv4 | 840 |
| AS17583 | Keumgang Cable Network | Unclassified | IPv4 | 806 |
| AS21859 | Zenlayer Inc | Hosting | IPv4 IPv6 | 756 |
| AS9757 | CMB DONDAEMOON BROADCASTING | Residential | IPv4 | 724 |
| AS38387 | CMB Sejong Broadcasting Co,.Ltd | Unclassified | IPv4 | 672 |
| AS38673 | Korea Cable TV Kwangju Broadcasting | Unclassified | IPv4 | 564 |
| AS18168 | CMB TAEGU BROADCAST SUSEONG | Unclassified | IPv4 | 444 |
| AS139341 | ACE | Hosting | IPv4 IPv6 | 419 |
| AS45374 | CCS | Unclassified | IPv4 | 401 |
| AS38690 | HyosungITX | Unclassified | IPv4 | 361 |
| AS17838 | HYUNDAI HOMESHOPPING | Unclassified | IPv4 | 252 |
| AS152225 | VNTG | Unclassified | IPv4 | 228 |
| AS138199 | Transatel | Unclassified | IPv4 IPv6 | 224 |
| AS23908 | IIAC | Unclassified | IPv4 | 215 |
| AS9771 | Media Synnara | Hosting | IPv4 | 180 |
| AS38424 | KOREA CABLE TELECOM | Unclassified | IPv4 | 176 |
| AS38101 | Yulchon LLC | Unclassified | IPv4 | 129 |
| AS55623 | Korea Insurance Development Institute | Unclassified | IPv4 | 120 |
| AS9640 | Korea Internet Security Agency | Unclassified | IPv4 | 105 |
| AS199524 | G-Core Labs S.A. | Hosting | IPv4 IPv6 | 68 |
| AS17867 | KOREA BANKING INSTITUTE | Unclassified | IPv4 | 59 |
| AS16477 | Nielsen Consumer LLC | Unclassified | IPv4 | 58 |
| AS131839 | mmaa | Unclassified | IPv4 | 43 |
| AS17876 | Ahnlab, Inc. | Unclassified | IPv4 | 24 |
| AS10036 | DLIVE | Residential | IPv4 | 24 |
| AS38125 | Korea Expressway Corporation | Unclassified | IPv4 | 16 |
| AS36819 | MELALEUCA INC. | Unclassified | IPv4 | 15 |
| AS38434 | POLARISOFFICE | Unclassified | IPv4 | 12 |
| AS10056 | Hyundai Marin Fire Insurance | Unclassified | IPv4 | 10 |
| AS10061 | Financial Supervisory Service | Unclassified | IPv4 | 5 |
| AS10173 | KSNET.Inc | Unclassified | IPv4 | 2 |
| AS20940 | Akamai International B.V. | Hosting | IPv4 | 1 |
Adjacency
Adjacent networks
Every AS seen directly next to AS9457 in a routing path, in either direction.
| AS | Network | Type | Families | Paths seen |
|---|---|---|---|---|
| AS174 | Cogent Communications, LLC | Transit | IPv4 IPv6 | 17,649 |
| AS2914 | NTT America, Inc. | Transit | IPv4 IPv6 | 14,316 |
| AS38676 | flexnetworks | Unclassified | IPv4 | 7,418 |
| AS17878 | DREAMMARK1 | Unclassified | IPv4 | 3,908 |
| AS17608 | ABN | Unclassified | IPv4 | 2,576 |
| AS10054 | CMB Kwangju Broadcasting | Residential | IPv4 | 1,920 |
| AS38684 | CMB Daejeon Broadcasting Co,.Ltd | Unclassified | IPv4 | 1,823 |
| AS4637 | Telstra Global | Unclassified | IPv4 IPv6 | 1,797 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 | 1,320 |
| AS38661 | abcle | Unclassified | IPv4 | 1,267 |
| AS38133 | CMB | Unclassified | IPv4 | 1,191 |
| AS21859 | Zenlayer Inc | Hosting | IPv4 IPv6 | 916 |
| AS38680 | CMB | Unclassified | IPv4 | 912 |
| AS9781 | GREEN CABLE TELEVISION STATION | Residential | IPv4 | 840 |
| AS17583 | Keumgang Cable Network | Unclassified | IPv4 | 806 |
| AS9757 | CMB DONDAEMOON BROADCASTING | Residential | IPv4 | 724 |
| AS38387 | CMB Sejong Broadcasting Co,.Ltd | Unclassified | IPv4 | 672 |
| AS38673 | Korea Cable TV Kwangju Broadcasting | Unclassified | IPv4 | 564 |
| AS18168 | CMB TAEGU BROADCAST SUSEONG | Unclassified | IPv4 | 454 |
| AS139341 | ACE | Hosting | IPv4 IPv6 | 421 |
| AS45374 | CCS | Unclassified | IPv4 | 401 |
| AS38690 | HyosungITX | Unclassified | IPv4 | 361 |
| AS9957 | KINX | Hosting | IPv4 | 277 |
| AS17838 | HYUNDAI HOMESHOPPING | Unclassified | IPv4 | 252 |
| AS3786 | LG DACOM Corporation | Unclassified | IPv4 | 246 |
| AS152225 | VNTG | Unclassified | IPv4 | 228 |
| AS138199 | Transatel | Unclassified | IPv4 IPv6 | 224 |
| AS23908 | IIAC | Unclassified | IPv4 | 215 |
| AS9771 | Media Synnara | Hosting | IPv4 | 180 |
| AS38424 | KOREA CABLE TELECOM | Unclassified | IPv4 | 176 |
| AS38101 | Yulchon LLC | Unclassified | IPv4 | 129 |
| AS55623 | Korea Insurance Development Institute | Unclassified | IPv4 | 120 |
| AS24482 | SG.GS | Hosting | IPv4 | 113 |
| AS9640 | Korea Internet Security Agency | Unclassified | IPv4 | 105 |
| AS199524 | G-Core Labs S.A. | Hosting | IPv4 IPv6 | 68 |
| AS17867 | KOREA BANKING INSTITUTE | Unclassified | IPv4 | 59 |
| AS16477 | Nielsen Consumer LLC | Unclassified | IPv4 | 58 |
| AS131839 | mmaa | Unclassified | IPv4 | 43 |
| AS17876 | Ahnlab, Inc. | Unclassified | IPv4 | 24 |
| AS10036 | DLIVE | Residential | IPv4 | 24 |
| AS38125 | Korea Expressway Corporation | Unclassified | IPv4 | 16 |
| AS36819 | MELALEUCA INC. | Unclassified | IPv4 | 15 |
| AS38434 | POLARISOFFICE | Unclassified | IPv4 | 12 |
| AS9002 | RETN Limited | Unclassified | IPv4 | 12 |
| AS10056 | Hyundai Marin Fire Insurance | Unclassified | IPv4 | 10 |
| AS9318 | SK Broadband Co Ltd | Unclassified | IPv4 | 6 |
| AS10061 | Financial Supervisory Service | Unclassified | IPv4 | 5 |
| AS10173 | KSNET.Inc | Unclassified | IPv4 | 2 |
| AS20940 | Akamai International B.V. | Hosting | IPv4 | 1 |
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
Internet exchanges where Packet Clearing House has a port recorded for AS9457, 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 3 exchanges across 2 countries and 1 region.
| Exchange | Location | Their address | Member ports |
|---|---|---|---|
| BroadBand Internet eXchange Tokyo | Tokyo, Japan | 101.203.90.155 | 359 |
| Korea Internet Neutral Exchange KINX | Seoul, South Korea | 139.150.100.24 | 64 |
| Equinix Internet Exchange Seoul | Seoul, South Korea | 103.140.210.7 | 12 |
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.