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AS5610

O2 Czech Republic, a.s.

AS5610 is O2 Czech Republic, a.s. (o2.cz). It announces 1,540,608 IPv4 addresses in 67 prefixes, and 5 IPv6 prefixes.

Czechia· RIPE· allocated 1996-04-25· isp

1,540,608
IPv4 addresses announced
67
IPv4 prefixes
5
IPv6 prefixes
87.50%
of its routes RPKI-valid
1,540,608
of its IPv4 geolocated
8
countries

Where its space is

The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.

  1. Czechia1,524,448 · 98.95%
  2. Slovakia15,104 · 0.98%
  3. France256 · 0.02%
  4. United Kingdom256 · 0.02%
  5. Italy256 · 0.02%
  6. United States256 · 0.02%
  7. Costa Rica16 · 0.00%
  8. Luxembourg16 · 0.00%

Registry record

Its ASN Whois record, as the registry publishes it.

handle
O2-CZECH-REPUBLIC
name
O2 Czech Republic, a.s.
org
ORG-STaN1-RIPE
org name
O2 Czech Republic, a.s.
org address
Za Brumlovkou 266/2, 140 22, Praha 4 - Michle, CZECH REPUBLIC
org country
CZ
country
CZ
source
ripe
status
ASSIGNED
created
2002-07-22
updated
2024-06-12
remarks
Za Brumlovkou 2 / Prague 4 / Czech Republic / in case of routing or peering problem / please contact router@o2.cz / Abuse contact abuse@o2.cz / ================== UP-STREAM PROVIDERS ================== / == UPSTREAM PROVIDER - Telia == / == UPSTREAM PROVIDER - Cgent == / ============ IPv6 UP-STREAM PROVIDERS ============ / == UPSTREAM PROVIDER - Telia == / == UPSTREAM PROVIDER - Cogent == / ========================= NIX PEERING =================== / ===================== IPv6 NIX PEERING =============== / =
maintainer
RIPE-NCC-END-MNT|AS5610-MTN
abuse name
Abuse-C Role
abuse email
abuse@o2.cz
abuse kind
role

What the databases see

Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.

IPv4 prefixes

Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.

67 prefixes
PREFIXCOUNTRYRPKIPEERSFIRST SEEN
5.23.39.0/24Italyvalid172026-10-02
37.188.128.0/17Czechiavalid172026-10-02
80.188.0.0/16Czechiavalid172026-10-02
80.188.0.0/17Czechiavalid172026-10-02
80.188.40.0/24Czechiavalid172026-10-02
80.188.128.0/17Czechiavalid172026-10-02
80.188.222.0/24Czechiavalid172026-10-02
81.90.160.0/20Czechiavalid172026-10-02
81.90.168.0/21Czechiavalid172026-10-02
81.90.168.0/24Czechiavalid172026-10-02
81.90.170.0/24Czechiavalid172026-10-02
81.90.173.0/24Czechiavalid172026-10-02
83.69.32.0/19Czechiavalid172026-10-02
83.208.0.0/16Czechiavalid172026-10-02
83.208.0.0/18Czechiavalid172026-10-02
83.208.64.0/18Czechiavalid172026-10-02
83.208.128.0/19Czechiavalid172026-10-02
83.208.220.0/22Czechiavalid172026-10-02
85.70.0.0/15Czechiavalid172026-10-02
85.70.0.0/16Czechiavalid172026-10-02
85.70.0.0/17Czechiavalid172026-10-02
85.70.128.0/17Czechiavalid172026-10-02
85.71.0.0/16Czechiavalid172026-10-02
85.71.224.0/19Czechiavalid172026-10-02
85.160.0.0/15Czechiavalid172026-10-02
85.193.0.0/18Czechiavalid172026-10-02
88.83.160.0/19Czechiavalid172026-10-02
88.83.175.0/24Czechiavalid172026-10-02
88.100.0.0/14Czechiavalid172026-10-02
88.100.0.0/15Czechiavalid172026-10-02
88.102.0.0/16Czechiavalid172026-10-02
90.176.32.0/19Czechiavalid172026-10-02
90.176.64.0/18Czechiavalid172026-10-02
90.176.128.0/17Czechiavalid172026-10-02
90.176.170.0/24Czechiavalid172026-10-02
90.177.0.0/16Czechiavalid172026-10-02
90.178.0.0/15Czechiavalid172026-10-02
90.180.0.0/14Czechiavalid172026-10-02
90.181.0.0/16Czechiavalid172026-10-02
90.182.0.0/16Czechiavalid172026-10-02
90.182.108.0/24Czechiavalid172026-10-02
90.183.0.0/16Czechiavalid172026-10-02
91.191.64.0/18Slovakiavalid172026-10-02
91.193.132.0/22Czechianot found172026-10-02
91.213.10.0/24Czechianot found172026-10-02
91.232.82.0/24Czechiavalid172026-10-02
92.243.192.0/19Czechiavalid172026-10-02
109.80.0.0/15Czechiavalid172026-10-02
109.81.112.0/20Czechiavalid172026-10-02
109.81.160.0/20Czechiavalid172026-10-02
160.218.0.0/16Czechiavalid172026-10-02
161.195.144.0/24United Statesvalid172026-10-02
185.61.228.0/22Czechiavalid172026-10-02
185.143.112.0/22Czechianot found172026-10-02
193.17.13.0/24Francevalid172026-10-02
193.84.12.0/22Czechianot found172026-10-02
193.84.12.0/23Czechianot found172026-10-02
193.84.14.0/23Czechianot found172026-10-02
194.50.248.0/23Czechianot found172026-10-02
194.165.47.0/24Czechianot found172026-10-02
194.228.0.0/16Czechiavalid172026-10-02
194.228.0.0/17Czechiavalid172026-10-02
194.228.72.0/22Czechiavalid172026-10-02
194.228.128.0/17Czechiavalid172026-10-02
195.5.186.0/24Czechiavalid172026-10-02
217.117.208.0/20Czechiavalid172026-10-02
217.194.160.0/20Czechiavalid172026-10-02

IPv6 prefixes

Every IPv6 prefix BGP Route saw it announce.

5 prefixes
PREFIXCOUNTRYRPKIPEERSFIRST SEEN
2001:67c:dd4::/48Czechianot found202026-10-02
2001:41d8::/32Czechiavalid202026-10-02
2a00:1028::/29Czechiavalid202026-10-02
2a00:1028::/32Czechiavalid202026-10-02
2a02:9b8::/31Czechiavalid202026-10-02
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