asn.dev

Observed topology

AS39392 SUPERNETWORK _

Upstreams 13 carry this network
Downstreams 102 this network carries
Adjacent (IPv4) 110
Adjacent (IPv6) 82

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS39392: 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
AS1299Arelion Sweden ABTransitIPv4 IPv6382
AS6939Hurricane Electric LLCTransitIPv4 IPv6185
AS174Cogent Communications, LLCTransitIPv4 IPv6119
AS33891Core-Backbone GmbHHostingIPv4 IPv680
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv618
AS29504Freenet Liberec, z.s.UnclassifiedIPv4 IPv616
AS24482SG.GSHostingIPv4 IPv616
AS3257GTT Communications Inc.TransitIPv64
AS20562Broadband Hosting B.V.HostingIPv41
AS57463NetIX Communications JSCUnclassifiedIPv41
AS50629LWLcom GmbHUnclassifiedIPv41
AS1764Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbHUnclassifiedIPv41
AS44066firstcolo GmbHUnclassifiedIPv41

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 AS39392 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS44489STARNET, s.r.o.ResidentialIPv4 IPv61,454
AS16509Amazon.com, Inc.HostingIPv61,363
AS62160WEB3 Leaders INCUnclassifiedIPv4666
AS34955Martin VicenikUnclassifiedIPv4541
AS202921CC INTERNET s.r.o.ResidentialIPv4 IPv6488
AS21430WIA spol. s.r.o.UnclassifiedIPv4 IPv6468
AS174Cogent Communications, LLCTransitIPv4 IPv6457
AS202895TFnet s.r.o.ResidentialIPv4 IPv6455
AS47232ISP Alliance a.s.ResidentialIPv4 IPv6424
AS42306Edera Group a.s.ResidentialIPv4 IPv6412
AS49025PRO-ZETA a.s.UnclassifiedIPv4 IPv6325
AS29583Spinoco a.s.UnclassifiedIPv4324
AS198101Kooperativa pojistovna, a.s., Vienna Insurance GroupUnclassifiedIPv4 IPv6314
AS204949CMIS s.r.o.HostingIPv4301
AS43070JAW.cz s.r.o.ResidentialIPv4 IPv6297
AS28972M-SOFT, spol. s r.o.UnclassifiedIPv4 IPv6286
AS60606PRO-ZETA a.s.UnclassifiedIPv4 IPv6277
AS202297Skylon Solutions LimitedUnclassifiedIPv4 IPv6266
AS197013Sprintel s.r.o.ResidentialIPv4 IPv6255
AS202877VEJNET.CZ s.r.o.ResidentialIPv4 IPv6254
AS49985IP4ISP z.s.p.oUnclassifiedIPv4 IPv6239
AS9080Ipex A.SUnclassifiedIPv4 IPv6231
AS34911ELDATA prazska s.r.o.UnclassifiedIPv4220
AS204007Kleissner Investments s.r.o.UnclassifiedIPv4 IPv6212
AS48602Connect plus s.r.o.ResidentialIPv4 IPv6211
AS31117ENERGOTEL a.s.UnclassifiedIPv4 IPv6208
AS206548ZCOM.cz s.r.oHostingIPv4 IPv6205
AS42005LightStorm Services s.r.o.HostingIPv4 IPv6202
AS47114SychrovNET s.r.oUnclassifiedIPv4 IPv6198
AS59959SferiaNET.cz s.r.o.ResidentialIPv4 IPv6191
AS48131IXOXI s.r.o.UnclassifiedIPv4 IPv6188
AS15614Dragon Internet a.s.ResidentialIPv4171
AS198346NETFORMS s.r.o.UnclassifiedIPv4 IPv6162
AS198167Apptc.me s.r.o.HostingIPv4 IPv6153
AS62099JM-Networks, s.r.o.UnclassifiedIPv4152
AS209810Netcore services s.r.o.UnclassifiedIPv4 IPv6150
AS8778Slovanet a.s.ResidentialIPv4144
AS207187TKR Jasek, s.r.o.UnclassifiedIPv4 IPv6141
AS204332TKC system s.r.o.ResidentialIPv4132
AS59871Heureka Group a.s.UnclassifiedIPv4 IPv6129
AS57279Sauron CZ s.r.o.ResidentialIPv4 IPv6126
AS209531OSTV s.r.o.ResidentialIPv4 IPv6125
AS48326DataNetworks s.r.o.ResidentialIPv4124
AS59970AmigoNet s.r.o.UnclassifiedIPv4123
AS30764PODA a.s.ResidentialIPv4 IPv6123
AS196735PODA a.s.UnclassifiedIPv4 IPv6123
AS52092Alf servis, s.r.o.ResidentialIPv4 IPv6122
AS197307Core4Net, s.r.o.UnclassifiedIPv4 IPv6121
AS215353Josef HrabeUnclassifiedIPv4119
AS44712eHAMnet, s.r.o.ResidentialIPv4 IPv6116
AS15169Google LLCHostingIPv6111
AS201548Milan ZelenkaResidentialIPv4110
AS210139DPT s.r.o.ResidentialIPv4 IPv6103
AS211594Kleissner Investments s.r.o.UnclassifiedIPv4 IPv694
AS52176TTC TELEKOMUNIKACE s.r.o.UnclassifiedIPv4 IPv691
AS62011UNHfree.net z.s.ResidentialIPv488
AS206703Netcom Solutions s.r.o.UnclassifiedIPv488
AS49013Fusion Media, s.r.o.UnclassifiedIPv488
AS197046FIXNET s.r.o.ResidentialIPv486
AS24641FASTER CZ spol. s r.o.HostingIPv4 IPv685
AS202719Pranet s.r.o.UnclassifiedIPv4 IPv685
AS61296TechCom s.r.o.UnclassifiedIPv474
AS211700Dexus Internet s.r.o.UnclassifiedIPv4 IPv674
AS56656Detronics s.r.o.UnclassifiedIPv472
AS3257GTT Communications Inc.TransitIPv466
AS199665Hana JuzkovaResidentialIPv4 IPv661
AS206784Internet Praha Josefov s.r.o.UnclassifiedIPv4 IPv660
AS196684VITALATIV, s.r.o.UnclassifiedIPv459
AS61425AdminIT, s. r. o.UnclassifiedIPv459
AS41779LajsiNET s.r.o.ResidentialIPv4 IPv659
AS204409Prestonet s.r.o.UnclassifiedIPv4 IPv659
AS199298Jan StetinaResidentialIPv4 IPv657
AS56456C2NET s.r.o.UnclassifiedIPv4 IPv655
AS13199Jaroslav DoubravaResidentialIPv4 IPv654
AS44430MaRcom-Eko s.r.o.UnclassifiedIPv444
AS211816ERON X s.r.o.HostingIPv444
AS204917Mi-Ja Javornik s.r.o.UnclassifiedIPv443
AS56349IP-Net s.r.o.ResidentialIPv4 IPv640
AS57007NITEX ISP s.r.o.UnclassifiedIPv439
AS51744Non-profit organization Jablonka.czUnclassifiedIPv4 IPv638
AS197029LAM plus s.r.o.UnclassifiedIPv437
AS29504Freenet Liberec, z.s.UnclassifiedIPv437
AS196843KHnet.info, z.s.UnclassifiedIPv434
AS43248ISPER, s.r.o.UnclassifiedIPv432
AS199490INTERCONNECT s.r.o.ResidentialIPv432
AS12508Rainside s.r.o.ResidentialIPv4 IPv628
AS209369The Cloud Provider s.r.o.HostingIPv4 IPv624
AS60068Datacamp LimitedHostingIPv418
AS43507RETE internet, s.r.o.ResidentialIPv416
AS208882Automation & Business, s.r.o.ResidentialIPv616
AS47949gsnet.cz s.r.o.UnclassifiedIPv414
AS44065NETAIR, s.r.o.ResidentialIPv414
AS49206PeakFactory BVHostingIPv413
AS42000Futruy s.r.o.UnclassifiedIPv410
AS203165Statni pokladna Centrum sdilenych sluzeb, s.p.UnclassifiedIPv49
AS49115E-MAX INTERNET & IT s.r.o.ResidentialIPv48

Adjacency

Adjacent networks

150 shown

Every AS seen directly next to AS39392 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS29504Freenet Liberec, z.s.UnclassifiedIPv4 IPv633,783
AS174Cogent Communications, LLCTransitIPv4 IPv623,340
AS33891Core-Backbone GmbHHostingIPv4 IPv622,341
AS1299Arelion Sweden ABTransitIPv4 IPv614,762
AS47232ISP Alliance a.s.ResidentialIPv4 IPv63,969
AS60606PRO-ZETA a.s.UnclassifiedIPv4 IPv62,510
AS44489STARNET, s.r.o.ResidentialIPv4 IPv62,449
AS31117ENERGOTEL a.s.UnclassifiedIPv4 IPv62,097
AS8778Slovanet a.s.ResidentialIPv41,702
AS16509Amazon.com, Inc.HostingIPv61,443
AS49025PRO-ZETA a.s.UnclassifiedIPv4 IPv6786
AS6939Hurricane Electric LLCTransitIPv4 IPv6685
AS62160WEB3 Leaders INCUnclassifiedIPv4666
AS207187TKR Jasek, s.r.o.UnclassifiedIPv4 IPv6613
AS203072DomaTV s.r.o.UnclassifiedIPv4 IPv6611
AS3257GTT Communications Inc.TransitIPv4 IPv6553
AS34955Martin VicenikUnclassifiedIPv4541
AS42306Edera Group a.s.ResidentialIPv4 IPv6540
AS21430WIA spol. s.r.o.UnclassifiedIPv4 IPv6515
AS15169Google LLCHostingIPv6514
AS196735PODA a.s.UnclassifiedIPv4 IPv6486
AS202921CC INTERNET s.r.o.ResidentialIPv4474
AS202297Skylon Solutions LimitedUnclassifiedIPv4 IPv6447
AS202895TFnet s.r.o.ResidentialIPv4440
AS48326DataNetworks s.r.o.ResidentialIPv4400
AS209810Netcore services s.r.o.UnclassifiedIPv4 IPv6387
AS15614Dragon Internet a.s.ResidentialIPv4381
AS210139DPT s.r.o.ResidentialIPv4 IPv6363
AS9080Ipex A.SUnclassifiedIPv4 IPv6330
AS29583Spinoco a.s.UnclassifiedIPv4324
AS198101Kooperativa pojistovna, a.s., Vienna Insurance GroupUnclassifiedIPv4 IPv6314
AS49985IP4ISP z.s.p.oUnclassifiedIPv4306
AS204949CMIS s.r.o.HostingIPv4301
AS197013Sprintel s.r.o.ResidentialIPv4 IPv6299
AS43070JAW.cz s.r.o.ResidentialIPv4 IPv6297
AS28972M-SOFT, spol. s r.o.UnclassifiedIPv4 IPv6296
AS42005LightStorm Services s.r.o.HostingIPv4 IPv6293
AS202877VEJNET.CZ s.r.o.ResidentialIPv4248
AS206548ZCOM.cz s.r.oHostingIPv4 IPv6231
AS34911ELDATA prazska s.r.o.UnclassifiedIPv4220
AS204007Kleissner Investments s.r.o.UnclassifiedIPv4 IPv6212
AS48602Connect plus s.r.o.ResidentialIPv4 IPv6211
AS47114SychrovNET s.r.oUnclassifiedIPv4 IPv6198
AS24641FASTER CZ spol. s r.o.HostingIPv4 IPv6197
AS30764PODA a.s.ResidentialIPv4 IPv6194
AS44712eHAMnet, s.r.o.ResidentialIPv4 IPv6194
AS215353Josef HrabeUnclassifiedIPv4 IPv6189
AS48131IXOXI s.r.o.UnclassifiedIPv4 IPv6188
AS59959SferiaNET.cz s.r.o.ResidentialIPv4176
AS204332TKC system s.r.o.ResidentialIPv4176
AS198346NETFORMS s.r.o.UnclassifiedIPv4 IPv6162
AS198167Apptc.me s.r.o.HostingIPv4 IPv6153
AS62099JM-Networks, s.r.o.UnclassifiedIPv4152
AS51744Non-profit organization Jablonka.czUnclassifiedIPv4 IPv6135
AS209531OSTV s.r.o.ResidentialIPv4 IPv6135
AS59871Heureka Group a.s.UnclassifiedIPv4 IPv6129
AS57279Sauron CZ s.r.o.ResidentialIPv4 IPv6126
AS59970AmigoNet s.r.o.UnclassifiedIPv4123
AS201548Milan ZelenkaResidentialIPv4110
AS197307Core4Net, s.r.o.UnclassifiedIPv4108
AS52092Alf servis, s.r.o.ResidentialIPv4106
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv6103
AS211594Kleissner Investments s.r.o.UnclassifiedIPv4 IPv694
AS52176TTC TELEKOMUNIKACE s.r.o.UnclassifiedIPv4 IPv691
AS206703Netcom Solutions s.r.o.UnclassifiedIPv488
AS60068Datacamp LimitedHostingIPv488
AS62011UNHfree.net z.s.ResidentialIPv488
AS49013Fusion Media, s.r.o.UnclassifiedIPv488
AS24482SG.GSHostingIPv4 IPv688
AS13199Jaroslav DoubravaResidentialIPv487
AS197046FIXNET s.r.o.ResidentialIPv486
AS202719Pranet s.r.o.UnclassifiedIPv4 IPv685
AS61296TechCom s.r.o.UnclassifiedIPv474
AS56656Detronics s.r.o.UnclassifiedIPv472
AS199490INTERCONNECT s.r.o.ResidentialIPv468
AS61425AdminIT, s. r. o.UnclassifiedIPv459
AS211700Dexus Internet s.r.o.UnclassifiedIPv459
AS196684VITALATIV, s.r.o.UnclassifiedIPv459
AS211816ERON X s.r.o.HostingIPv444
AS44430MaRcom-Eko s.r.o.UnclassifiedIPv444
AS199665Hana JuzkovaResidentialIPv444
AS206784Internet Praha Josefov s.r.o.UnclassifiedIPv444
AS41779LajsiNET s.r.o.ResidentialIPv444
AS204409Prestonet s.r.o.UnclassifiedIPv444
AS49115E-MAX INTERNET & IT s.r.o.ResidentialIPv444
AS204917Mi-Ja Javornik s.r.o.UnclassifiedIPv443
AS199298Jan StetinaResidentialIPv443
AS56456C2NET s.r.o.UnclassifiedIPv441
AS42000Futruy s.r.o.UnclassifiedIPv440
AS57007NITEX ISP s.r.o.UnclassifiedIPv439
AS197029LAM plus s.r.o.UnclassifiedIPv437
AS196843KHnet.info, z.s.UnclassifiedIPv434
AS43248ISPER, s.r.o.UnclassifiedIPv432
AS56349IP-Net s.r.o.ResidentialIPv431
AS47949gsnet.cz s.r.o.UnclassifiedIPv428
AS1764Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbHUnclassifiedIPv623
AS12508Rainside s.r.o.ResidentialIPv420

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 AS39392, 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.

ExchangeLocationTheir addressMember ports
Peering.czPrague, Czech Republic185.0.20.4212

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.