AS5610 O2 Czech Republic, a.s.

Czechia O2-CZECH-REPUBLIC RIPE 67 IPv4 prefixes 5 IPv6 prefixes

IPv4 addresses

1,542,400

IPv6 /48 networks

720,897

RPKI

63 valid9 no ROA

Peers and downstreams

Holder

AS name: O2-CZECH-REPUBLIC
Description: O2 Czech Republic, a.s.
Organisation: O2 Czech Republic, a.s.
Abuse contact: abuse@o2.cz
Assigned: 1996-04-24
Registered: 2002-07-22
Record last changed: 2024-06-12 11:51 UTC

109.80.0.0/15 109.81.112.0/20 109.81.160.0/20 160.218.0.0/16 161.195.144.0/24 185.143.112.0/22 185.61.228.0/22 193.17.13.0/24 193.84.12.0/22 193.84.12.0/23 193.84.14.0/23 194.165.47.0/24 194.228.0.0/16 194.228.0.0/17 194.228.128.0/17 194.228.72.0/22 194.50.248.0/23 195.5.186.0/24 217.117.208.0/20 217.194.160.0/20 37.188.128.0/17 5.23.39.0/24 80.188.0.0/16 80.188.0.0/17 80.188.128.0/17 80.188.222.0/24 80.188.40.0/24 81.90.160.0/20 81.90.168.0/21 81.90.168.0/24 81.90.170.0/24 81.90.173.0/24 83.208.0.0/16 83.208.0.0/18 83.208.128.0/19 83.208.220.0/22 83.208.64.0/18 83.69.32.0/19 85.160.0.0/15 85.193.0.0/18 85.70.0.0/15 85.70.0.0/16 85.70.0.0/17 85.70.128.0/17 85.71.0.0/16 85.71.224.0/19 88.100.0.0/14 88.100.0.0/15 88.102.0.0/16 88.83.160.0/19 88.83.175.0/24 90.176.128.0/17 90.176.170.0/24 90.176.32.0/19 90.176.64.0/18 90.177.0.0/16 90.178.0.0/15 90.180.0.0/14 90.181.0.0/16 90.182.0.0/16 90.182.108.0/24 90.183.0.0/16 91.191.64.0/18 91.193.132.0/22 91.213.10.0/24 91.232.82.0/24 92.243.192.0/19

Routing changes

Last 30 days

2026-10-04 01:23 UTC	Relationship changed	AS8220	upstream to peer
2026-10-04 01:23 UTC	Relationship changed	AS8218	upstream to peer
2026-10-04 01:23 UTC	Relationship changed	AS6663	upstream to peer
2026-10-04 01:23 UTC	Relationship changed	AS6461	upstream to peer
2026-10-04 01:23 UTC	Relationship changed	AS6204	upstream to peer
2026-10-04 01:23 UTC	Relationship changed	AS60068	upstream to peer
2026-10-04 01:23 UTC	Relationship changed	AS47232	upstream to peer
2026-10-04 01:23 UTC	Relationship changed	AS4455	upstream to peer
2026-10-04 01:23 UTC	Relationship changed	AS39392	upstream to peer
2026-10-04 01:23 UTC	Relationship changed	AS33891	upstream to peer
2026-10-04 01:23 UTC	Relationship changed	AS2852	upstream to peer
2026-10-04 01:23 UTC	Relationship changed	AS264409	upstream to peer
2026-10-04 01:23 UTC	Relationship changed	AS263444	upstream to peer
2026-10-04 01:23 UTC	Relationship changed	AS22356	upstream to peer
2026-10-04 01:23 UTC	Relationship changed	AS21215	upstream to peer
2026-10-04 01:23 UTC	New neighbour	AS199803	peer
2026-10-04 01:23 UTC	Relationship changed	AS199490	upstream to peer
2026-10-04 01:23 UTC	Relationship changed	AS1764	upstream to peer
2026-10-04 01:23 UTC	Relationship changed	AS15935	upstream to peer
2026-10-04 01:23 UTC	Relationship changed	AS14840	upstream to peer

WHOIS

aut-num:        AS5610
as-name:        O2-CZECH-REPUBLIC
remarks:        Za Brumlovkou 2
remarks:        Prague 4
remarks:        Czech Republic
remarks:        ==================================================
remarks:        in case of routing or peering problem
remarks:        please contact router@o2.cz
remarks:        Abuse contact abuse@o2.cz
remarks:        ==================================================
remarks:        ================== UP-STREAM PROVIDERS ==================
remarks:        =
remarks:        == UPSTREAM PROVIDER - Telia ==
remarks:        =
remarks:        == UPSTREAM PROVIDER - Cgent ==
remarks:        =
remarks:        ============ IPv6 UP-STREAM PROVIDERS ============
remarks:        == UPSTREAM PROVIDER - Telia ==
remarks:        =
remarks:        =
remarks:        == UPSTREAM PROVIDER - Cogent ==
remarks:        =
remarks:        ========================= NIX PEERING ===================
remarks:        =
remarks:        ===================== IPv6 NIX PEERING ===============
remarks:        =
remarks:        ========================= NIX SECURE PEERING ===================
remarks:        =
remarks:        =
remarks:        ===================== IPv6 NIX SECURE PEERING ===============
remarks:        =
remarks:        =
remarks:        =
remarks:        ============ IPv6 Peering ============
remarks:        =
remarks:        =
remarks:        == Mafra ==
remarks:        =
remarks:        == GE Money Bank ==
remarks:        =
remarks:        == Internet Home (LOSAN) ==
remarks:        =
remarks:        == eHAMnet, s.r.o. ==
remarks:        =
remarks:        == Autocont ==
remarks:        =
remarks:        == CUZK ==
remarks:        =
remarks:        == DataSpring s.r.o. ==
remarks:        =
remarks:        == Prazska plynarenska ==
remarks:        =
remarks:        == XLNET s.r.o. ==
remarks:        =
remarks:        == Jan Ryznar ==
remarks:        =
remarks:        == DHL ==
remarks:        =
remarks:        == TS Bohemia ==
remarks:        =
remarks:        =================== DIRECT PEERING PARTNERS =============
remarks:        =
remarks:        == CETIN ==
remarks:        =
remarks:        =
remarks:        == Google ==
remarks:        =
remarks:        ==== CZECH CUSTOMERS WITH INTERNATIONAL CONNECTIVITY ====
remarks:        ========
remarks:        IH-LOSAN
remarks:        =
remarks:        ==================== CZECH CUSTOMERS ====================
remarks:        ========
remarks:        Maurice Ward & Co., s.r.o.
remarks:        ========
remarks:        ARIBA
remarks:        ========
remarks:        G4S Cash Solutions (CZ), a.s.
remarks:        ========
remarks:        SYCHROVNET
remarks:        ========
remarks:        Rudolf NET
remarks:        ========
remarks:        GE Capital (Czech) Holding
remarks:        ========
remarks:        MUZO
remarks:        ========
remarks:        Seznam
remarks:        ========
remarks:        DHL
remarks:        ========
remarks:        Mafra
remarks:        ========
remarks:        VLP
remarks:        ========
remarks:        Air Navigation Services of the Czech Republic
remarks:        ========
remarks:        GROUP 4 Secure Solutions a.s
remarks:        ========
remarks:        GE Capital (Czech) Holdings
remarks:        ========
remarks:        CZ.CTNET Autonomous Sytem
remarks:        ========
remarks:        Logica
remarks:        ========
remarks:        LUKOIL
remarks:        ========
remarks:        INTACTO GAMES a.s.
remarks:        ========
remarks:        OMEGA tech s.r.o.
remarks:        ========
remarks:        FDLNet
remarks:        ========
remarks:        Autocont
remarks:        ========
remarks:        BAJA Group s.r.o.
remarks:        ========
remarks:        Cesky urad zememericky a katastralni
remarks:        ========
remarks:        VITKOVICE IT SOLUTIONS a.s.
remarks:        ========
remarks:        Monet
remarks:        ========
remarks:        Hela PC
remarks:        ========
remarks:        Ceskomoravska rozvojova a zarucni banka
remarks:        ========
remarks:        ING Bank
remarks:        ========
remarks:        INTERNETHOME (Mirovka.net)
remarks:        ========
remarks:        Martin Vicenik
remarks:        ========
remarks:        ING POJISTOVNA
remarks:        ========
remarks:        CCS Ceska spolecnost pro platebni karty s.r.o
remarks:        ========
remarks:        SYCHROVNET
remarks:        ========
remarks:        ALTRON
remarks:        ========
remarks:        AVX CZ
remarks:        ========
remarks:        K2 connect solution s.r.o.
remarks:        ========
remarks:        GOLDWARE CZ, s.r.o.
remarks:        ========
remarks:        eHAMnet, s.r.o.
remarks:        ========
remarks:        Internethome.
remarks:        ========
remarks:        DataSpring s.r.o.
remarks:        ========
remarks:        Prazska plynarenska
remarks:        ========
remarks:        XLNET s.r.o.
remarks:        ========
remarks:        ON-SEMICONDUCTOR-INC
remarks:        ========
remarks:        Komercni banka, a. s.
remarks:        ========
remarks:        FIO banka, a. s.
remarks:        ========
remarks:        AVG - Avast
remarks:        ========
remarks:        SAP SE PRG
remarks:        ========
remarks:        TS Bohemia
remarks:        ========
remarks:        CSOB
remarks:        ========
remarks:        TTC TELEKOMUNIKACE s.r.o.
remarks:        ========
remarks:        MSIC-AS
remarks:        ========
remarks:        ==================== CZECH CUSTOMERS IPv6====================
remarks:        == CSOB ==
remarks:        =
remarks:        ==================== END ====================
org:            ORG-STaN1-RIPE
admin-c:        CZO2-RIPE
tech-c:         CZO2-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         AS5610-MTN
created:        2002-07-22T13:51:41Z
last-modified:  2024-06-12T11:51:47Z
source:         RIPE
% 186 routing policy lines (import/export) not shown

Routing data

Updated just now

Registry record

Fetched just now from RIPE

Prefixes and neighbours come from the RIPE RIS route collectors. Data older than 5 minutes is refreshed when this page is opened.

API

curl -H "X-API-Key: YOUR_KEY" https://ip-fd.net/api/v1/asn/5610

const res = await fetch('https://ip-fd.net/api/v1/asn/5610', {
  headers: { 'X-API-Key': 'YOUR_KEY' }
});
const data = await res.json();
console.log(data);

import requests

r = requests.get('https://ip-fd.net/api/v1/asn/5610', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/5610');
curl_setopt($ch, CURLOPT_HTTPHEADER, ['X-API-Key: YOUR_KEY']);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$data = json_decode(curl_exec($ch), true);
print_r($data);

req, _ := http.NewRequest("GET", "https://ip-fd.net/api/v1/asn/5610", nil)
req.Header.Set("X-API-Key", "YOUR_KEY")
res, err := http.DefaultClient.Do(req)
if err != nil {
    log.Fatal(err)
}
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))

Works without a key at a lower rate. Get a free key.

AS174
AS1299	Arelion Sweden AB TWELVE99
AS6939	Hurricane Electric LLC HURRICANE

AS2571	DHL Information Services (Europe) s.r.o DHLNET
AS8518	RFE/RL, INC. RFERL
AS13105	INFORM LLC LUKOIL-INFORM-AS
AS15380	Air Navigation Services of the Czech Republic, state enterprise ANSCZ
AS16019	Vodafone Czech Republic a.s. VODAFONE-CZ-AS
AS16246	O2 Czech Republic, a.s. AS16246
AS21241	Global Payments Europe, s.r.o. MUZO-AS
AS21942
AS25321	Brink's Cash Solutions (CZ), a.s. G4S-NET
AS28952	O2 Business Services, a.s O2BSSK
AS35096	Alef Nula a.s. ALEFNULA
AS38952	MAFRA, a.s. MAFRA-CZ-AS
AS39453	Ustav zdravotnickych informaci a statistiky Ceske republiky UZIS-AS
AS42908	O2 Czech Republic, a.s. CZ-NORDICTELECOMREGIONAL
AS43037	Seznam.cz, a.s. SEZNAM-CZ
AS43757	ICZ a.s. ICZAS-CZ
AS43866	Altron a.s. ALTRON
AS47941	Red Hat Ltd REDHAT
AS48451	Prazska energetika, a.s. PRE-AS
AS49580	Monet +, a.s. MONETPLUS-AS
AS50948	AMDOCS (UK) LIMITED amdocs-uk-dc-as
AS59747	NIX.CZ z.s.p.o. NIX-DR
AS62083	Fio banka, a.s. FIO-BANKA-AS
AS197353	NN Management Services, s.r.o. INGMS_CZ
AS197920	SKODA ICT s.r.o. SKODA-ICT
AS198282	CAH Building s.r.o. cablenet
AS198605	AVAST Software s.r.o. AVAST-AS-DC
AS198991	TV Nova sro TV_NOVA_SRO
AS199059	Maurice Ward & Co., s.r.o. MauriceWard
AS201163	Komercni banka, a.s. KB-AS-CZ
AS203411	FORTUNA GAME a.s. FORTUNA-GAME-PUB
AS204172	TTC TELEKOMUNIKACE s.r.o. TTCINFRA-CZ
AS204372	PPF banka a.s. PPFBANKA
AS204907	Air Bank a.s. AS204907
AS205233	KBC GLOBAL SERVICES NV AS_KBCGROUP_CSOBCZ
AS206613	Tipsport.net a.s. TIPSPORT-NET-AS
AS206683	Moravskoslezske inovacni centrum Ostrava, a.s. MSIC-AS
AS208712	CENDIS, s.p. CENDIS
AS208906	SYNOT ICT Services, a.s. SYNOT-CZ
AS208950	Ezpada s.r.o ASEZPADASRO
AS211274	Quadruple a.s. QCZ
AS215711	The Ministry of Agriculture of the Czech Republic MZE

AS1764	Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH NEXTLAYER-AS
AS2852	CESNET z.s.p.o. CESNET2
AS4455	IX Reach Ltd BSO
AS6204	TMRC GROUP SRL ZET-NET
AS6461	Zayo Bandwidth ZAYO-6461
AS6663	Euroweb Romania S.R.L. TTI-NET
AS6881	NIX.CZ z.s.p.o. NIXCZ
AS8218	Zayo Infrastructure France SA NEO-ASN
AS8220	COLT Technology Services Group Limited COLT
AS14840	BR.Digital Telecom AS14840
AS15935	ha-vel internet s.r.o. HA-VEL-LOCAL-AS
AS16246	O2 Czech Republic, a.s. AS16246
AS21215	UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. Beograd UGNI
AS22356	Durand do Brasil Ltda AS22356
AS24482	SG.GS SGGS-AS-AP
AS29504	Freenet Liberec, z.s. LBCFREE
AS33891	Core-Backbone GmbH CORE-BACKBONE
AS36236	NetActuate, Inc NETACTUATE
AS39392	SH.cz s.r.o. SuperNetwork
AS40994	Hohl IT e.U. Alwyzon
AS47232	ISP Alliance a.s. ISPAlliance
AS49544	i3D.net B.V i3Dnet
AS60068	Datacamp Limited CDN77
AS198150	SIACOM JSC SIACOM-AS
AS199490	INTERCONNECT s.r.o. INTERCONNECT
AS199803	ComSource s.r.o. ComSource
AS202297	Skylon Solutions Limited SKYLON
AS212483	LEVEL EIGHTY-SIX COMMUNICATIONS LTD level86
AS263444	Open X Tecnologia Ltda AS263444
AS264409	Huge Solucoes Corporativas Ltda AS264409