Observed topology
AS47232 ISPALLIANCE
Transit
Upstream networks
Networks observed carrying traffic for AS47232: 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 |
|---|---|---|---|---|
| AS39392 | SH.cz s.r.o. | Hosting | IPv4 IPv6 | 424 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 IPv6 | 312 |
| AS3257 | GTT Communications Inc. | Transit | IPv4 | 30 |
| AS24482 | SG.GS | Hosting | IPv4 IPv6 | 16 |
| AS29504 | Freenet Liberec, z.s. | Unclassified | IPv4 IPv6 | 16 |
| AS57463 | NetIX Communications JSC | Unclassified | IPv4 | 10 |
| AS37721 | Virtual Technologies & Solutions | Residential | IPv4 | 10 |
| AS1764 | Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH | Unclassified | IPv4 | 10 |
| AS20562 | Broadband Hosting B.V. | Hosting | IPv4 | 10 |
| AS6461 | Zayo Bandwidth | Transit | 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 AS47232 was observed as the last hop before the origin, meaning it appears to provide them transit.
| AS | Network | Type | Families | Paths seen |
|---|---|---|---|---|
| AS201476 | ISP Alliance a.s. | Unclassified | IPv4 IPv6 | 882 |
| AS16276 | OVH SAS | Hosting | IPv4 | 635 |
| AS210712 | ISP Alliance a.s. | Unclassified | IPv4 IPv6 | 573 |
| AS44002 | Sys-DataCom s.r.o. | Residential | IPv4 IPv6 | 526 |
| AS204666 | Jiri Tlapak | Unclassified | IPv4 IPv6 | 444 |
| AS204064 | CEZNET s.r.o. | Unclassified | IPv4 IPv6 | 348 |
| AS207886 | ECOMP spol s r.o. | Unclassified | IPv4 IPv6 | 324 |
| AS197296 | United Networks SE | Unclassified | IPv4 IPv6 | 286 |
| AS197879 | HelaPC s.r.o. | Unclassified | IPv4 IPv6 | 257 |
| AS33883 | TRIOPTIMUM s.r.o. | Unclassified | IPv4 IPv6 | 223 |
| AS56566 | SATT a.s. | Unclassified | IPv4 IPv6 | 222 |
| AS44500 | Vlasimnet s.r.o. | Unclassified | IPv4 IPv6 | 162 |
| AS197393 | ISP Alliance a.s. | Unclassified | IPv4 IPv6 | 162 |
| AS202618 | Rychly drat, s.r.o. | Unclassified | IPv4 IPv6 | 161 |
| AS35236 | UVT Internet s.r.o. | Unclassified | IPv4 IPv6 | 154 |
| AS56624 | Rtyne.net s.r.o. | Unclassified | IPv4 | 124 |
| AS49981 | WorldStream B.V. | Hosting | IPv4 | 108 |
| AS29134 | Webglobe, s.r.o. | Hosting | IPv4 IPv6 | 101 |
| AS50971 | JHComp s.r.o. | Unclassified | IPv4 IPv6 | 100 |
| AS201625 | United Networks SE | Unclassified | IPv4 IPv6 | 100 |
| AS201559 | United Networks SE | Unclassified | IPv4 IPv6 | 100 |
| AS205002 | CUBESOL, s.r.o. | Unclassified | IPv4 IPv6 | 100 |
| AS198814 | ALPHA StylSoft, s.r.o. | Unclassified | IPv4 IPv6 | 100 |
| AS209621 | DOBNET, z.s. | Unclassified | IPv4 IPv6 | 99 |
| AS202774 | ISP Alliance a.s. | Unclassified | IPv4 IPv6 | 99 |
| AS206951 | BMB-Green s.r.o. | Unclassified | IPv4 IPv6 | 99 |
| AS16019 | Vodafone Czech Republic a.s. | Unclassified | IPv4 | 89 |
| AS24940 | Hetzner Online GmbH | Hosting | IPv4 | 89 |
| AS47727 | Warnet.cz s.r.o. | Unclassified | IPv4 IPv6 | 84 |
| AS212975 | TeamCity s.r.o. | Unclassified | IPv4 IPv6 | 83 |
| AS57279 | Sauron CZ s.r.o. | Residential | IPv4 | 69 |
| AS20723 | AVONET, s.r.o. | Residential | IPv4 IPv6 | 66 |
| AS39455 | Jiri Tlapak | Unclassified | IPv4 | 62 |
| AS208847 | Martin Fryzl | Unclassified | IPv4 | 62 |
| AS52084 | ISP Alliance a.s. | Unclassified | IPv4 | 62 |
| AS202921 | CC INTERNET s.r.o. | Residential | IPv4 | 62 |
| AS202131 | ISP Alliance a.s. | Unclassified | IPv4 | 62 |
| AS201533 | United Networks SE | Unclassified | IPv4 | 62 |
| AS201464 | ISP Alliance a.s. | Unclassified | IPv4 | 62 |
| AS60529 | Miroslav Klement | Unclassified | IPv4 | 61 |
| AS50163 | Altnet s.r.o. | Unclassified | IPv4 IPv6 | 57 |
| AS202877 | VEJNET.CZ s.r.o. | Residential | IPv4 IPv6 | 46 |
| AS5578 | SWAN, a.s. | Unclassified | IPv4 | 43 |
| AS201654 | CEZNET s.r.o. | Unclassified | IPv4 IPv6 | 42 |
| AS50415 | Ahosting a.s. | Unclassified | IPv4 IPv6 | 39 |
| AS6855 | Slovak Telekom, a.s. | Mobile | IPv4 | 37 |
| AS29208 | Quantcom, a.s. | Unclassified | IPv4 | 35 |
| AS50338 | GamerHost s.r.o. | Hosting | IPv4 IPv6 | 35 |
| AS205535 | Windyghoul s.r.o. | Unclassified | IPv6 | 33 |
| AS51400 | SPOJE.NET s.r.o. | Unclassified | IPv4 IPv6 | 29 |
| AS13199 | Jaroslav Doubrava | Residential | IPv6 | 26 |
| AS57077 | AB-NET s.r.o. | Unclassified | IPv4 | 23 |
| AS35046 | OMEGA plus Chrudim s.r.o. | Unclassified | IPv6 | 20 |
| AS30764 | PODA a.s. | Residential | IPv4 | 19 |
| AS20804 | Exatel S.A. | Unclassified | IPv4 | 15 |
| AS43037 | Seznam.cz, a.s. | Hosting | IPv4 | 6 |
| AS5610 | O2 Czech Republic, a.s. | Unclassified | IPv4 | 2 |
| AS202297 | Skylon Solutions Limited | Unclassified | IPv4 | 2 |
| AS44489 | STARNET, s.r.o. | Residential | IPv4 | 1 |
| AS31229 | Beyond.pl sp. z o.o. | Hosting | IPv4 | 1 |
Adjacency
Adjacent networks
Every AS seen directly next to AS47232 in a routing path, in either direction.
| AS | Network | Type | Families | Paths seen |
|---|---|---|---|---|
| AS202297 | Skylon Solutions Limited | Unclassified | IPv4 | 5,774 |
| AS39392 | SH.cz s.r.o. | Hosting | IPv4 IPv6 | 3,969 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 IPv6 | 3,298 |
| AS3257 | GTT Communications Inc. | Transit | IPv4 IPv6 | 2,120 |
| AS16276 | OVH SAS | Hosting | IPv4 | 1,043 |
| AS201476 | ISP Alliance a.s. | Unclassified | IPv4 IPv6 | 882 |
| AS201053 | Stowarzyszenie e-Poludnie | Unclassified | IPv4 | 725 |
| AS20804 | Exatel S.A. | Unclassified | IPv4 | 634 |
| AS210712 | ISP Alliance a.s. | Unclassified | IPv4 IPv6 | 576 |
| AS44002 | Sys-DataCom s.r.o. | Residential | IPv4 IPv6 | 526 |
| AS16019 | Vodafone Czech Republic a.s. | Unclassified | IPv4 | 489 |
| AS204666 | Jiri Tlapak | Unclassified | IPv4 IPv6 | 478 |
| AS204064 | CEZNET s.r.o. | Unclassified | IPv4 IPv6 | 472 |
| AS35236 | UVT Internet s.r.o. | Unclassified | IPv4 IPv6 | 461 |
| AS207886 | ECOMP spol s r.o. | Unclassified | IPv4 IPv6 | 324 |
| AS197296 | United Networks SE | Unclassified | IPv4 IPv6 | 286 |
| AS24940 | Hetzner Online GmbH | Hosting | IPv4 | 262 |
| AS197879 | HelaPC s.r.o. | Unclassified | IPv4 IPv6 | 257 |
| AS33883 | TRIOPTIMUM s.r.o. | Unclassified | IPv4 IPv6 | 256 |
| AS49981 | WorldStream B.V. | Hosting | IPv4 | 226 |
| AS56566 | SATT a.s. | Unclassified | IPv4 IPv6 | 222 |
| AS6855 | Slovak Telekom, a.s. | Mobile | IPv4 | 202 |
| AS50338 | GamerHost s.r.o. | Hosting | IPv4 IPv6 | 193 |
| AS37721 | Virtual Technologies & Solutions | Residential | IPv4 IPv6 | 176 |
| AS44500 | Vlasimnet s.r.o. | Unclassified | IPv4 IPv6 | 162 |
| AS197393 | ISP Alliance a.s. | Unclassified | IPv4 IPv6 | 162 |
| AS202618 | Rychly drat, s.r.o. | Unclassified | IPv4 IPv6 | 161 |
| AS6663 | Euroweb Romania S.R.L. | Unclassified | IPv4 | 159 |
| AS29504 | Freenet Liberec, z.s. | Unclassified | IPv4 IPv6 | 145 |
| AS29134 | Webglobe, s.r.o. | Hosting | IPv4 IPv6 | 140 |
| AS6461 | Zayo Bandwidth | Transit | IPv4 | 139 |
| AS57463 | NetIX Communications JSC | Unclassified | IPv4 | 135 |
| AS5578 | SWAN, a.s. | Unclassified | IPv4 | 129 |
| AS56624 | Rtyne.net s.r.o. | Unclassified | IPv4 | 124 |
| AS39455 | Jiri Tlapak | Unclassified | IPv4 | 124 |
| AS29208 | Quantcom, a.s. | Unclassified | IPv4 | 123 |
| AS24482 | SG.GS | Hosting | IPv4 IPv6 | 117 |
| AS1764 | Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH | Unclassified | IPv4 IPv6 | 101 |
| AS201559 | United Networks SE | Unclassified | IPv4 IPv6 | 100 |
| AS201625 | United Networks SE | Unclassified | IPv4 IPv6 | 100 |
| AS50971 | JHComp s.r.o. | Unclassified | IPv4 IPv6 | 100 |
| AS198814 | ALPHA StylSoft, s.r.o. | Unclassified | IPv4 IPv6 | 100 |
| AS205002 | CUBESOL, s.r.o. | Unclassified | IPv4 IPv6 | 100 |
| AS206951 | BMB-Green s.r.o. | Unclassified | IPv4 IPv6 | 99 |
| AS202774 | ISP Alliance a.s. | Unclassified | IPv4 IPv6 | 99 |
| AS209621 | DOBNET, z.s. | Unclassified | IPv4 IPv6 | 99 |
| AS20723 | AVONET, s.r.o. | Residential | IPv4 IPv6 | 97 |
| AS47727 | Warnet.cz s.r.o. | Unclassified | IPv4 IPv6 | 89 |
| AS212975 | TeamCity s.r.o. | Unclassified | IPv4 IPv6 | 83 |
| AS20562 | Broadband Hosting B.V. | Hosting | IPv4 | 82 |
| AS57279 | Sauron CZ s.r.o. | Residential | IPv4 | 69 |
| AS13199 | Jaroslav Doubrava | Residential | IPv4 IPv6 | 69 |
| AS201464 | ISP Alliance a.s. | Unclassified | IPv4 | 62 |
| AS201533 | United Networks SE | Unclassified | IPv4 | 62 |
| AS202131 | ISP Alliance a.s. | Unclassified | IPv4 | 62 |
| AS202921 | CC INTERNET s.r.o. | Residential | IPv4 | 62 |
| AS52084 | ISP Alliance a.s. | Unclassified | IPv4 | 62 |
| AS208847 | Martin Fryzl | Unclassified | IPv4 | 62 |
| AS60529 | Miroslav Klement | Unclassified | IPv4 | 61 |
| AS50163 | Altnet s.r.o. | Unclassified | IPv4 IPv6 | 57 |
| AS12570 | O2 Czech Republic, a.s. | Unclassified | IPv4 | 53 |
| AS202877 | VEJNET.CZ s.r.o. | Residential | IPv4 IPv6 | 46 |
| AS51400 | SPOJE.NET s.r.o. | Unclassified | IPv4 IPv6 | 45 |
| AS35046 | OMEGA plus Chrudim s.r.o. | Unclassified | IPv4 IPv6 | 44 |
| AS201654 | CEZNET s.r.o. | Unclassified | IPv4 IPv6 | 42 |
| AS50415 | Ahosting a.s. | Unclassified | IPv4 IPv6 | 39 |
| AS5610 | O2 Czech Republic, a.s. | Unclassified | IPv4 | 36 |
| AS205535 | Windyghoul s.r.o. | Unclassified | IPv6 | 33 |
| AS30764 | PODA a.s. | Residential | IPv4 | 31 |
| AS57077 | AB-NET s.r.o. | Unclassified | IPv4 | 23 |
| AS43037 | Seznam.cz, a.s. | Hosting | IPv4 | 7 |
| AS28917 | Fiord Networks, UAB | Unclassified | IPv4 | 6 |
| AS4229 | Zenlayer Inc | Hosting | IPv4 | 3 |
| AS44522 | Join-stock company "Internet Exchange"MSK-IX" | Unclassified | IPv4 | 3 |
| AS8218 | Zayo Infrastructure France SA | Unclassified | IPv6 | 2 |
| AS24971 | MasterDC s.r.o. | Hosting | IPv4 | 1 |
| AS31229 | Beyond.pl sp. z o.o. | Hosting | IPv4 | 1 |
| AS44489 | STARNET, s.r.o. | Residential | 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 AS47232, 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 2 exchanges across 2 countries and 1 region.
| Exchange | Location | Their address | Member ports |
|---|---|---|---|
| NetIX | Sofia, Bulgaria | 185.1.227.188 | 264 |
| Peering.cz | Prague, Czech Republic | 185.0.20.22 | 212 |
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.