Observed topology
AS6802 UNICOM-B-AS NREN - Bulgaria
Transit
Upstream networks
Networks observed carrying traffic for AS6802: 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 |
|---|---|---|---|---|
| AS8262 | Evolink EAD | Unclassified | IPv4 IPv6 | 1,839 |
| AS21320 | GEANT Vereniging | Unclassified | IPv4 IPv6 | 893 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 | 370 |
| AS3303 | Swisscom (Schweiz) AG | Residential | IPv4 | 100 |
| AS8717 | A1 Bulgaria EAD | Residential | IPv4 | 62 |
| AS208972 | GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETI | Unclassified | IPv4 | 49 |
| AS8280 | SYNAPSECOM S.A. Provider of Telecommunications and Internet Services | Hosting | IPv4 | 49 |
| AS8866 | Vivacom Bulgaria EAD | Residential | IPv4 | 36 |
| AS20965 | GEANT Vereniging | Unclassified | IPv4 IPv6 | 16 |
| AS5405 | Inter.link GmbH | Unclassified | IPv4 | 10 |
| AS8218 | Zayo Infrastructure France SA | Unclassified | IPv4 | 2 |
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 AS6802 was observed as the last hop before the origin, meaning it appears to provide them transit.
| AS | Network | Type | Families | Paths seen |
|---|---|---|---|---|
| AS28949 | Technical University of Sofia | Unclassified | IPv4 | 299 |
| AS5421 | Sofia University "St. Kliment Ohridski" | Education | IPv4 IPv6 | 298 |
| AS31011 | University of Chemical Technology And Metallurgy | Unclassified | IPv4 | 65 |
| AS8745 | Bulgarian Academy of Sciences | Education | IPv4 IPv6 | 59 |
| AS41352 | D. A. Tsenov Svishtov Academy of Economics | Unclassified | IPv4 IPv6 | 38 |
| AS47174 | Technical University of Varna | Unclassified | IPv4 | 14 |
| AS49704 | BULGARIA - DZZD | Unclassified | IPv4 IPv6 | 14 |
| AS48155 | University of Ruse "Angel Kanchev" | Unclassified | IPv4 IPv6 | 13 |
Adjacency
Adjacent networks
Every AS seen directly next to AS6802 in a routing path, in either direction.
| AS | Network | Type | Families | Paths seen |
|---|---|---|---|---|
| AS8262 | Evolink EAD | Unclassified | IPv4 IPv6 | 2,193 |
| AS21320 | GEANT Vereniging | Unclassified | IPv4 IPv6 | 1,118 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 | 419 |
| AS28949 | Technical University of Sofia | Unclassified | IPv4 | 299 |
| AS5421 | Sofia University "St. Kliment Ohridski" | Education | IPv4 IPv6 | 298 |
| AS20965 | GEANT Vereniging | Unclassified | IPv4 IPv6 | 156 |
| AS3303 | Swisscom (Schweiz) AG | Residential | IPv4 | 111 |
| AS8280 | SYNAPSECOM S.A. Provider of Telecommunications and Internet Services | Hosting | IPv4 | 67 |
| AS31011 | University of Chemical Technology And Metallurgy | Unclassified | IPv4 | 65 |
| AS8717 | A1 Bulgaria EAD | Residential | IPv4 | 62 |
| AS8745 | Bulgarian Academy of Sciences | Education | IPv4 IPv6 | 59 |
| AS208972 | GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETI | Unclassified | IPv4 | 50 |
| AS41352 | D. A. Tsenov Svishtov Academy of Economics | Unclassified | IPv4 IPv6 | 38 |
| AS8866 | Vivacom Bulgaria EAD | Residential | IPv4 | 36 |
| AS47174 | Technical University of Varna | Unclassified | IPv4 | 14 |
| AS49704 | BULGARIA - DZZD | Unclassified | IPv4 IPv6 | 14 |
| AS48155 | University of Ruse "Angel Kanchev" | Unclassified | IPv4 IPv6 | 13 |
| AS5405 | Inter.link GmbH | Unclassified | IPv4 | 10 |
| AS8218 | Zayo Infrastructure France SA | Unclassified | IPv4 | 4 |
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 AS6802, 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 1 exchange across 1 country and 1 region.
| Exchange | Location | Their address | Member ports |
|---|---|---|---|
| Bulgarian Internet eXchange | Sofia, Bulgaria | 193.169.199.125 | 137 |
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.