All ASNs

Autonomous System details for AS5610

AS5610

O2 Czech Republic, a.s. • o2.cz

AS5610 — O2 Czech Republic, a.s.

AS Name

O2-CZECH-REPUBLIC

Country

Czechia (CZ)

Website

o2.cz

Number of IPv4

2,327,808

Number of IPv6

9.51 × 10²⁹

ASN type

ISP

Status

Allocated

Registry

RIPE

Allocated

July 22, 2002

Last updated

June 12, 2024

IP Ranges

67 IPv4 prefixes, 5 IPv6 prefixes

Prefix	Company	Number of IPs
5.23.39.0/24	Gi Group Holding S.p.A	256
37.188.128.0/17	O2 Czech Republic, a.s.	32,768
80.188.0.0/16	O2 Czech Republic, a.s.	65,536
80.188.0.0/17	O2 Czech Republic, a.s.	32,768
80.188.40.0/24	O2 Czech Republic, a.s.	256
80.188.128.0/17	O2 Czech Republic, a.s.	32,768
80.188.222.0/24	DUKELSKYCHHRDINU	256
81.90.160.0/20	TERMSnet	4,096
81.90.168.0/21	Elsat spol. s r.o.	2,048
81.90.168.0/24	Elsat spol. s r.o.	256
81.90.170.0/24	Elsat spol. s r.o.	256
81.90.173.0/24	Elsat spol. s r.o.	256
83.69.32.0/19	O2 Czech Republic, a.s.	8,192
83.208.0.0/16	O2 Czech Republic, a.s.	65,536
83.208.0.0/18	O2 Czech Republic, a.s.	16,384
83.208.64.0/18	O2 Czech Republic, a.s.	16,384
83.208.128.0/19	O2 Czech Republic, a.s.	8,192
83.208.220.0/22	O2 Czech Republic, a.s.	1,024
85.70.0.0/15	O2 Czech Republic, a.s.	131,072
85.70.0.0/16	O2 Czech Republic, a.s.	65,536
85.70.0.0/17	O2 Czech Republic, a.s.	32,768
85.70.128.0/17	O2 Czech Republic, a.s.	32,768
85.71.0.0/16	O2 Czech Republic, a.s.	65,536
85.71.224.0/19	O2 Czech Republic, a.s.	8,192
85.160.0.0/15	O2 Czech Republic, a.s.	131,072
85.193.0.0/18	O2 Czech Republic, a.s.	16,384
88.83.160.0/19	O2 Czech Republic, a.s.	8,192
88.83.175.0/24	O2 Czech Republic, a.s.	256
88.100.0.0/14	O2 Czech Republic, a.s.	262,144
88.100.0.0/15	O2 Czech Republic, a.s.	131,072
88.102.0.0/16	O2 Czech Republic, a.s.	65,536
90.176.32.0/19	O2 Czech Republic, a.s.	8,192
90.176.64.0/18	O2 Czech Republic, a.s.	16,384
90.176.128.0/17	O2 Czech Republic, a.s.	32,768
90.176.170.0/24	O2 Czech Republic, a.s.	256
90.177.0.0/16	O2 Czech Republic, a.s.	65,536
90.178.0.0/15	O2 Czech Republic, a.s.	131,072
90.180.0.0/14	O2 Czech Republic, a.s.	262,144
90.181.0.0/16	O2 Czech Republic, a.s.	65,536
90.182.0.0/16	O2 Czech Republic, a.s.	65,536
90.182.108.0/24	O2 Czech Republic, a.s.	256
90.183.0.0/16	Brno	65,536
91.191.64.0/18	O2 Slovakia, s.r.o.	16,384
91.193.132.0/22	Burza cennych papiru Praha, a.s.	1,024
91.213.10.0/24	CGI IT Czech Republic s.r.o.	256
91.232.82.0/24	ABIS Czech, a.s.	256
92.243.192.0/19	O2 Czech Republic, a.s.	8,192
109.80.0.0/15	O2 Czech Republic, a.s.	131,072
109.81.112.0/20	FIX BB Czechia vl	4,096
109.81.160.0/20	O2 Czech Republic a.s.	4,096
160.218.0.0/16	O2 Czech Republic, a.s.	65,536
161.195.144.0/24	Aramark Services, Inc.	256
185.61.228.0/22	O2 Czech Republic, a.s.	1,024
185.143.112.0/22	K-net Technical International Group, s.r.o.	1,024
193.17.13.0/24	Enterprise Services France SAS	256
193.84.12.0/22	LOGIS a.s.	1,024
193.84.12.0/23	LOGIS a.s.	512
193.84.14.0/23	LOGIS a.s.	512
194.50.248.0/23	Banka CREDITAS a.s	512
194.165.47.0/24	Ing. Jiri Orsag, CSc.	256
194.228.0.0/16	O2 Czech Republic, a.s.	65,536
194.228.0.0/17	O2 Czech Republic, a.s.	32,768
194.228.72.0/22	O2 Czech Republic, a.s.	1,024
194.228.128.0/17	O2 Czech Republic, a.s.	32,768
195.5.186.0/24	Agrofert JSC	256
217.117.208.0/20	O2 Czech Republic, a.s.	4,096
217.194.160.0/20	O2 Czech Republic, a.s.	4,096
2001:67c:dd4::/48	ITIXO s.r.o.	1.21 × 10²⁴
2001:41d8::/32	O2 Czech Republic, a.s.	7.92 × 10²⁸
2a00:1028::/29	O2 Czech Republic, a.s.	6.34 × 10²⁹
2a00:1028::/32	O2 Czech Republic, a.s.	7.92 × 10²⁸
2a02:9b8::/31	O2 Czech Republic, a.s.	1.58 × 10²⁹

IP ranges are the different blocks of IP addresses advertised by an Autonomous System (AS). These ranges can be used by the same organization operating the AS, or by different organizations.

Peers of AS5610

25 peers

AS1764 AS2852 AS4455 AS33891 AS49544 AS212483 AS6461 AS6939 AS8218 AS8220 AS15935 AS16019 AS22356 AS24482 AS24940 AS29504 AS32590 AS39120 AS40994 AS47232 AS60068 AS132337 AS199490 AS202297 AS263444

AS5610 peers with these other Autonomous Systems.

Peering is a direct, often free, traffic exchange between Autonomous Systems (ASNs). They share routes only to their own networks and customers, making connections faster and cheaper for that specific traffic, without providing full internet access to each other.

Upstreams of AS5610

2 upstreams

AS174 AS1299

AS5610 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS5610 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS5610

39 downstreams

AS2571 AS13105 AS15380 AS16246 AS21241 AS21942 AS25321 AS28952 AS35096 AS38952 AS39453 AS42908 AS43037 AS43757 AS43866 AS48451 AS49580 AS50948 AS59747 AS62083 AS197353 AS197920 AS198282 AS198605 AS198991 AS199059 AS201163 AS203411 AS204172 AS204372 AS204907 AS205233 AS206613 AS206683 AS208712 AS208906 AS208950 AS211274 AS215711

AS5610 provides internet connectivity to these downstream Autonomous Systems.

A downstream is a customer Autonomous System that pays another AS (its provider) for internet access. The provider AS carries the downstream's traffic and makes its network reachable.