AS2852
CESNET2
Transit networks
Registry
Authoritative registration data
- AS number
- 2852
- Name
- CESNET2
- Organisation
- Transit networks
- Country
- —
- RIR
- RIPE
- Registered
IPv4 prefixes
26
IPv6 prefixes
1
Total announced
27
Announced prefixes
Observed in BGP by route collectors, not a registry allocation list
| 146.102.0.0/16 | IPv4 | /16 | not checked | |
| 147.228.0.0/16 | IPv4 | /16 | RPKI valid | |
| 147.230.0.0/16 | IPv4 | /16 | not checked | |
| 147.231.0.0/16 | IPv4 | /16 | RPKI valid | |
| 147.251.0.0/16 | IPv4 | /16 | not checked | |
| 147.32.0.0/16 | IPv4 | /16 | RPKI valid | |
| 147.33.0.0/16 | IPv4 | /16 | not checked | |
| 158.194.0.0/16 | IPv4 | /16 | not checked | |
| 158.196.0.0/16 | IPv4 | /16 | RPKI valid | |
| 160.216.0.0/16 | IPv4 | /16 | not checked | |
| 160.217.0.0/16 | IPv4 | /16 | not checked | |
| 195.113.0.0/16 | IPv4 | /16 | RPKI valid | |
| 78.128.128.0/17 | IPv4 | /17 | not checked | |
| 193.84.192.0/19 | IPv4 | /19 | RPKI valid | |
| 195.178.64.0/19 | IPv4 | /19 | not checked | |
| 193.84.160.0/20 | IPv4 | /20 | RPKI valid | |
| 193.84.192.0/20 | IPv4 | /20 | not checked | |
| 193.84.208.0/20 | IPv4 | /20 | RPKI valid | |
| 193.84.32.0/20 | IPv4 | /20 | not checked | |
| 193.84.56.0/21 | IPv4 | /21 | not checked | |
| 185.8.160.0/22 | IPv4 | /22 | RPKI valid | |
| 193.84.104.0/22 | IPv4 | /22 | not checked | |
| 193.84.80.0/22 | IPv4 | /22 | RPKI valid | |
| 193.84.116.0/23 | IPv4 | /23 | RPKI valid | |
| 193.84.53.0/24 | IPv4 | /24 | not checked | |
| 193.84.55.0/24 | IPv4 | /24 | not checked | |
| 2001:718::/29 | IPv6 | /29 | not checked |
No rows match “”.
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Internet Exchanges
Exchanges where this network has a listed peering LAN connection
| Address families | ||
|---|---|---|
| AMS-IX | 20,000 Mbps | IPv4 · IPv6 |
| DE-CIX Frankfurt: DE-CIX Frankfurt Peering LAN | 30,000 Mbps | IPv4 · IPv6 |
| NIX.CZ: Public peering VLAN | 400,000 Mbps | IPv4 · IPv6 |
No rows match “”.
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Exchange membership means the network has a listed connection; it does not prove peering with other members.
Observed adjacencies
Networks seen next to AS2852 in BGP paths by route collectors.
Observed upstreams
75 networks seen before AS2852 in AS paths
No rows match “”.
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Observed downstreams
30 networks seen after AS2852 in AS paths
| Families | |||
|---|---|---|---|
| AS197451 VUTBR-AS | 493 | 1,790 |
v4
v6
|
| AS48091 ROWANet-AS | 503 | 1,781 |
v4
v6
|
| AS208093 msk | 320 | 1,544 |
v4
|
| AS197277 SUKL_AS | 490 | 1,424 |
v4
v6
|
| AS199711 NCISA-AS | 516 | 1,384 |
v4
v6
|
| AS201648 PLZ-AS-CZ | 490 | 1,071 |
v4
v6
|
| AS213152 NBU | 404 | 879 |
v4
v6
|
| AS2607 SANET | 37 | 874 |
v4
v6
|
| AS61110 SITMP | 510 | 797 |
v4
v6
|
| AS702 UUNET | 114 | 783 |
v4
|
| AS200874 LBC-AS-CZ | 490 | 722 |
v4
v6
|
| AS212876 CZ-PARDUBICKYKRAJ | 490 | 722 |
v4
v6
|
| AS202874 ZL-AS-CZ | 486 | 721 |
v4
v6
|
| AS210498 Vysocina-hSOC | 490 | 720 |
v4
v6
|
| AS210367 KZCR | 396 | 593 |
v4
v6
|
| AS204772 RSD-CZ | 309 | 419 |
v4
v6
|
| AS1853 ACOnet | 83 | 416 |
v4
v6
|
| AS51727 SKODAPOWER-AS | 268 | 334 |
v4
|
| AS6855 SK-TELEKOM | 64 | 219 |
v4
v6
|
| AS198500 MUNINET-AS | 139 | 192 |
v6
|
| AS199604 KU-AS | 106 | 157 |
v4
v6
|
| AS16019 VODAFONE-CZ-AS | 44 | 58 |
v6
|
| AS16509 AMAZON-02 | 1 | 35 |
v4
v6
|
| AS42000 KAORA | 2 | 11 |
v4
v6
|
| AS2686 ATGS-MMD-AS | 2 | 8 |
v4
|
| AS6461 ZAYO-6461 | 1 | 6 |
v4
|
| AS34080 MIRAMO-AS | 1 | 2 |
v4
v6
|
| AS5610 O2-CZECH-REPUBLIC | 1 | 1 |
v4
|
| AS57463 NetIX | 1 | 1 |
v4
|
| AS203165 SPCSS | 1 | 1 |
v6
|
No rows match “”.
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Uncertain adjacencies
72 adjacencies that may be an artefact of collector peering
No rows match “”.
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