AS31242 P4 Sp. z o.o.
IPv4 addresses
113,664
IPv6 /48 networks
131,072
RPKI
0 valid59 no ROA
Peers and downstreams
97
Holder
- AS name
- TKPSA-AS
- Description
- P4 Sp. z o.o.
- Organisation
- P4 Sp. z o.o.
- Registered in
- Warsaw, Poland
- Abuse contact
- abuse@play.pl
- Assigned
- 2004-03-28
- Registered
- 2004-03-29
- Record last changed
- 2026-09-09 10:16 UTC
119.12.17.0/24119.12.22.0/24119.12.23.0/24119.12.28.0/22178.219.20.0/24178.219.21.0/24178.219.22.0/24178.219.23.0/24178.219.24.0/24178.219.30.0/24178.219.31.0/24185.157.236.0/24185.157.237.0/24185.157.238.0/24185.157.239.0/24185.54.184.0/22188.117.128.0/18192.150.83.0/24193.106.244.0/22193.150.165.0/24193.151.100.0/22193.16.229.0/24193.43.148.0/24194.110.127.0/24194.150.96.0/22194.63.128.0/22195.128.242.0/23195.242.68.0/24195.242.69.0/24213.179.72.0/2231.172.176.0/2080.249.130.0/2483.175.162.0/2483.175.166.0/2484.205.170.0/2484.205.176.0/2284.205.183.0/2484.205.184.0/2484.205.185.0/2484.205.187.0/2484.205.189.0/2484.205.190.0/2484.205.191.0/2485.14.64.0/1889.25.128.0/1791.193.184.0/2291.203.216.0/2291.208.182.0/2491.208.189.0/2491.226.38.0/2391.227.120.0/2491.227.199.0/2491.227.200.0/2391.227.202.0/2391.90.176.0/2091.90.72.0/2193.179.192.0/18
| AS12075 | Jacobs Engineering Group Inc. JACOBS |
| AS12580 | Euvic Solutions S.A. omniTEC |
| AS15391 | Sysclay Sp. z o. o. SYSCL1 |
| AS19197 | Stefanini, Inc. STEFANINI-INC |
| AS28815 | Lerkins Group Sp. z o. o. LERKINS-MNT |
| AS28978 | COIG S.A COIG-AS |
| AS30753 | Compower COMPOWER |
| AS31106 | Wroclawski Park Technologiczny S.A. WPT-AS |
| AS31604 | Intertele S.A. INTERTELE-AS |
| AS33838 | BetaNET sp. z o.o. BETANET-AS |
| AS33895 | "T-Systems Polska Sp. z o.o." PL-TSYSTEMSPL |
| AS34324 | Netlink Sp. z o o NETLINK-AS |
| AS34509 | P.P.H.U. "BMJ" Sp.J. W.Baran J.Pogonowski BMJ-AS |
| AS34719 | 4EverBUSINESS Sp. z o.o. PL-4EVERNET-AS |
| AS35538 | Provider sp. z o.o. PROVIDERPL-AS |
| AS35760 | Grzegorz Miaz trading as PROXNET SP.J. PROXNET-AS |
| AS38921 | Nowa Itaka Sp. z o.o. ITAKA-AS |
| AS39255 | Polska Grupa Gornicza S.A. PGG-SA |
| AS39489 | Stowarzyszenie Milosnikow Internetu INDS INDS |
| AS42877 | AKRON-Lucyna i Adam Kinal sp.j Akron-ASN |
| AS43015 | KPE NIERUCHOMOSCI Spolka Akcyjna KANLUX-AS |
| AS43173 | AIUT S.A. AIUT-AS |
| AS43290 | CashBill S.A. CASHBILL-AS |
| AS43498 | JAS-FBG S.A JAS-FBG-AS |
| AS44124 | Rybnet Sp. z o.o. Sp. k. RYBNET-AS |
| AS44860 | RAFAKO S.A. RAFAKO-RACIBORZ-AS |
| AS45016 | WEGLOKOKS S.A. WKOKS-ASN |
| AS47476 | Moto-Profil sp. z o.o. MOTO-PROFIL |
| AS47830 | Skorpio Piotr Groborz SKORPIO_PG-AS |
| AS48208 | Nac NAC-AS |
| AS48523 | ArcelorMittal Poland S.A. HKZA-AS |
| AS48782 | European Border and Coast Guard Agency FRONTEX-AS |
| AS49200 | Sperasoft Poland Sp. z o.o. Sperasoft |
| AS49787 | STRONG-PC Tomasz Piekarski PL-STRONG-PC-AS |
| AS49946 | Kamsoft S.A. KAMSOFT |
| AS50830 | Technology Solutions 360 Sp. z o.o. FTS-PL-AS |
| AS52020 | Rudzkie Sieci Komputerowe Sp. z o.o. RSKNET-AS RSK |
| AS60418 | SENETIC S.A. PL-SENETIC-AS |
| AS60964 | AppDistrict sp. z o.o. APPDISTRICT-AS |
| AS60968 | Benefit Systems SA BENEFIT-SYSTEM |
| AS196702 | ista Shared Services Polska Sp. z o.o. PL-ISTA-AS |
| AS196806 | Sewera Polska Chemia Sewera-AS |
| AS196899 | INTEGER.pl S.A. Integer |
| AS196926 | Bitron Poland Sp. z o.o. BITRON-POLAND-AS |
| AS197027 | B2 Impact S.A. ULTIMO-AS |
| AS197231 | Primetech S.A. KOPEX-ASN |
| AS197274 | Slaska Siec Metropolitalna Sp. z o.o. SSM-GLIWICE-AS |
| AS197318 | HardCom Sp. z o.o. HARDCOM-AS |
| AS197527 | Miejskie Przedsiebiorstwo Komunikacyjne SA w Krakowie MPKSA-AS |
| AS197702 | ALTERIS Sp. z o.o. ALTERIS-AS |
| AS197828 | PARTNER TELEKOM Jacek Kwiatkowski, Leszek Kuszka SP.J. PARTNERTELEKOM-AS |
| AS198007 | dobrafirma.pl Michal Mocek Krzysztof Kafka Gabriel Grzenia DOBRAFIRMA-PL |
| AS198050 | Marek Piwowarski trading as ALFA-SYSTEM M. Piwowarski, A. Widera s.j. ALFA-SYSTEM-AS |
| AS198094 | Voxel S.A. vOXEL-AS |
| AS198131 | Centrum Informatyki ZETO S.A. ZETOBI |
| AS198146 | Michal Prokopiuk FHU MAJA Sloneczko-Net |
| AS198235 | GRAKOM ANDRZEJ LISZKA GRAKOM-AS |
| AS198278 | GWARANT Grupa Kapitalowa S.A. GWARANTGK-AS |
| AS198695 | IMS Multimedia S.C. ASIMSMULTI |
| AS198854 | SECNET Sp. z o.o. SECNET-AS |
| AS198921 | UNIXSTORM-AS Unix Storm |
| AS199212 | Zaklad Elektronicznej Techniki Obliczeniowej w Katowicach Sp. z o.o. PL-ZETO-KATOWICE-AS |
| AS199444 | HMC Company LLC HMC-DC-PL |
| AS199601 | ELSTA SP. Z O.O. ELSTA |
| AS199648 | Instytut Gosc Media GOSC-NET |
| AS200543 | FARMACORE SPOLKA Z O.O. FARMACOL |
| AS200633 | Afriso Sp. z o.o. AFRISO |
| AS200672 | PC Land Kopec Artur PC-Land |
| AS200714 | Zaklady Tluszczowe Bielmar Sp. z o.o. PL-ZTBIELMAR-AS |
| AS200974 | JSW IT SYSTEMS sp. z o.o. Advicom |
| AS201753 | Wojewodzkie Pogotowie Ratunkowe w Katowicach WPR |
| AS203313 | OldNET Krzysztof Cukierski OLDNET |
| AS203689 | NATIONALE-NEDERLANDEN TOWARZYSTWO UBEZPIECZEN NA ZYCIE SA METLIFE_SERVICES-ASN |
| AS204063 | MAXTO Spolka z ograniczona odpowiedzialnoscia S.K.A. MAXTO |
| AS204301 | Cioch Adrian Centrum Uslug Sieciowych CUS |
| AS204388 | ZAKLAD DOSKONALENIA ZAWODOWEGO W KATOWICACH ZDZ-KATOWICE |
| AS204837 | MIASTO NA PRAWACH POWIATU SOSNOWIEC SOSNOWIEC |
| AS205096 | Dagma Sp. z o.o. DAGMA-AS |
| AS205395 | Centrum Holding 1 Spolka Akcyjna Sp. K. CH1-AS |
| AS205708 | Telbridge sp z o o TELB |
| AS207325 | Auto Partner S.A. AUTOPARTNER |
| AS207742 | Miasto na Prawach Powiatu gmidabgor Dabrowa Gornicza |
| AS210271 | home&you Spolka Akcyjna BBKMAGNA-NET |
| AS210287 | URZAD MIASTA KRAKOWA umk GMINA MIEJSKA KRAKOW |
| AS210913 | PUQ Sp. z o.o. PUQ |
| AS211810 | American Heart of Poland SA AHOP-AS |
| AS212119 | Netfibra Bartosz Krokosz NETFIBRA |
| AS212909 | Dynacon sp. z o.o. DYNACON |
| AS213103 | Morele.net Sp. z o. o. MORELE |
| AS213824 | Stadion Miejski Katowice Sp. Z o.o. Stadion_Miejski_Katowice |
Upstream graph
Upstreams and their upstreams, from BGP pathsNetwork health
Grade C · 65/100| fail | Prefixes covered by valid ROAs 0 of 59 announced prefixes are RPKI valid, 59 have no ROA. |
0/25 |
| pass | No RPKI invalid announcements None of the announcements is RPKI invalid. |
10/10 |
| pass | Announces IPv6 2 IPv6 prefixes. |
15/15 |
| pass | More than one upstream 4 upstreams seen in BGP. |
10/10 |
| pass | Working abuse contact abuse@play.pl is published. |
15/15 |
| fail | Publishes a geofeed No geofeed found. Without one, location databases have to guess. |
0/10 |
| pass | No prefixes smaller than /24 or /48 All prefixes are /24 (IPv4) or /48 (IPv6) or larger. |
10/10 |
| pass | Registry record maintained Last changed 2026-09-09. |
5/5 |
Built from the announced prefixes, RPKI, the registry record and geofeeds. Checks without data are not counted. Also in the API.
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Routing changes
Last 30 days| 2026-10-04 17:36 UTC | Neighbour gone | AS203562 | downstream |
| 2026-10-04 17:36 UTC | Neighbour gone | AS35320 | upstream |
| 2026-10-04 17:36 UTC | Neighbour gone | AS13194 | upstream |
| 2026-10-04 17:36 UTC | New neighbour | AS211810 | downstream |
| 2026-10-04 17:36 UTC | New neighbour | AS204301 | downstream |
| 2026-10-04 17:36 UTC | New neighbour | AS204063 | downstream |
| 2026-10-04 17:36 UTC | New neighbour | AS200672 | downstream |
| 2026-10-04 17:36 UTC | New neighbour | AS197318 | downstream |
| 2026-10-04 17:36 UTC | New neighbour | AS197231 | downstream |
| 2026-10-04 17:36 UTC | Relationship changed | AS9009 | upstream to peer |
| 2026-10-04 17:36 UTC | New neighbour | AS49559 | peer |
| 2026-10-04 17:36 UTC | Relationship changed | AS24115 | upstream to peer |
| 2026-10-04 17:36 UTC | Relationship changed | AS137409 | upstream to peer |
| 2026-10-04 17:36 UTC | Prefix gone | 195.95.164.0/24 | |
| 2026-10-04 17:36 UTC | New prefix | 178.219.30.0/24 |
WHOIS
aut-num: AS31242 as-name: TKPSA-AS remarks: P4 b2b network org: ORG-PSZO7-RIPE descr: admin-c: TKP-RIPE tech-c: TKP-RIPE remarks: -------------------------------- remarks: 3S BGP contact: bgp@3s.pl or pomoc@3s.pl remarks: -------------------------------- status: ASSIGNED mnt-by: TKPSA-MNT mnt-by: RIPE-NCC-END-MNT created: 2004-03-29T15:33:46Z last-modified: 2026-09-09T10:16:06Z source: RIPE % 424 routing policy lines (import/export) not shown