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Autonomous System details for AS28725

AS28725
CETIN a.s. • cetin.cz

AS28725 — CETIN a.s.

AS Name
CETIN-AS
Country
Czechia (CZ)
Website
Number of IPv4
264,960
Number of IPv6
7.13 × 1029
ASN type
ISP
Status
Allocated
Registry
RIPE
Allocated
February 10, 2003
Last updated
March 24, 2020

IP Ranges

7 IPv4 prefixes, 2 IPv6 prefixes
Prefix Company Number of IPs
85.162.0.0/15 CETIN a.s. 131,072
85.162.0.0/16 CETIN a.s. 65,536
85.163.0.0/16 CETIN a.s. 65,536
136.238.226.0/24 HP Inc. 256
185.218.92.0/23 Netstone s.r.o. 512
194.50.64.0/22 Czech Republic, Ministerstvo Obrany 1,024
194.147.12.0/22 CETIN a.s. 1,024
2a07:1f40::/29 CETIN a.s. 6.34 × 1029
2a0b:bb40::/32 Netstone s.r.o. 7.92 × 1028

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 AS28725

154 peers
AS559 AS680 AS1031 AS1103 AS1828 AS3170 AS3214 AS3216 AS3333 AS4455 AS5398 AS5405 AS6233 AS6777 AS6939 AS8283 AS12637 AS12779 AS14907 AS16552 AS20485 AS20932 AS24482 AS25160 AS28716 AS293 AS553 AS1140 AS1239 AS1267 AS1764 AS1836 AS3741 AS4657 AS5713 AS6057 AS6424 AS6461 AS7195 AS7713 AS8218 AS8298 AS8426 AS8529 AS8758 AS8896 AS8966 AS9044 AS9902 AS12552 AS12859 AS12969 AS13030 AS13237 AS14537 AS14630 AS15547 AS15576 AS15605 AS17639 AS18106 AS20764 AS21412 AS23106 AS24889 AS24961 AS25091 AS25220 AS28917 AS29140 AS29504 AS31510 AS31742 AS33891 AS34019 AS34177 AS34288 AS34549 AS34927 AS35266 AS35280 AS35360 AS35625 AS35710 AS36994 AS37100 AS37468 AS37497 AS37662 AS38880 AS39120 AS39122 AS40994 AS41047 AS41327 AS41811 AS42473 AS42541 AS45352 AS47147 AS47160 AS47692 AS47957 AS48919 AS49544 AS50300 AS50304 AS50763 AS51088 AS51873 AS55329 AS56987 AS57695 AS57777 AS58057 AS58299 AS58511 AS59890 AS60068 AS62275 AS63927 AS199938 AS206356 AS212483 AS213151 AS213241 AS264409 AS398465 AS28792 AS29075 AS30844 AS34224 AS35369 AS35598 AS37721 AS39351 AS48070 AS48185 AS48362 AS49605 AS50629 AS50673 AS51184 AS51185 AS52320 AS62167 AS64475 AS132337 AS137409 AS198385 AS199524 AS202297 AS207841 AS210937

AS28725 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 AS28725

2 upstreams
AS174 AS1299

AS28725 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS28725 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS28725

30 downstreams
AS19637 AS24641 AS29298 AS35046 AS35613 AS47868 AS48364 AS50784 AS51382 AS51420 AS52029 AS56427 AS57294 AS57560 AS196849 AS196952 AS197197 AS197565 AS198248 AS201265 AS203365 AS203645 AS204351 AS205619 AS206177 AS206438 AS209947 AS211826 AS212859 AS212975

AS28725 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.

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