AS25512
CDT-AS
The Czech Republic
Registry
Authoritative registration data
- AS number
- 25512
- Name
- CDT-AS
- Organisation
- The Czech Republic
- Country
- —
- RIR
- RIPE
- Registered
IPv4 prefixes
11
IPv6 prefixes
1
Total announced
12
Announced prefixes
Observed in BGP by route collectors, not a registry allocation list
| 89.203.128.0/17 | IPv4 | /17 | not checked | |
| 213.235.128.0/18 | IPv4 | /18 | not checked | |
| 82.202.64.0/18 | IPv4 | /18 | not checked | |
| 85.13.64.0/18 | IPv4 | /18 | not checked | |
| 195.146.96.0/19 | IPv4 | /19 | not checked | |
| 212.11.96.0/19 | IPv4 | /19 | not checked | |
| 82.117.128.0/19 | IPv4 | /19 | not checked | |
| 81.19.32.0/20 | IPv4 | /20 | not checked | |
| 85.184.16.0/20 | IPv4 | /20 | not checked | |
| 131.117.192.0/21 | IPv4 | /21 | not checked | |
| 185.134.0.0/22 | IPv4 | /22 | not checked | |
| 2001:1a48::/32 | IPv6 | /32 | not checked |
No rows match “”.
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Internet Exchanges
Exchanges where this network has a listed peering LAN connection
| Address families | ||
|---|---|---|
| NIX.CZ: Public peering VLAN | 200,000 Mbps | IPv4 · IPv6 |
| NIX.SK | 10,000 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 AS25512 in BGP paths by route collectors.
Observed upstreams
11 networks seen before AS25512 in AS paths
| Families | |||
|---|---|---|---|
| AS174 COGENT-174 | 934 | 2,639 |
v4
v6
|
| AS1299 TWELVE99 | 1,161 | 2,553 |
v4
v6
|
| AS6939 HURRICANE | 316 | 591 |
v4
v6
|
| AS14840 ASN14840 | 39 | 171 |
v4
v6
|
| AS8218 NEO-ASN | 48 | 147 |
v4
v6
|
| AS6461 ZAYO-6461 | 59 | 144 |
v4
v6
|
| AS1764 NEXTLAYER-AS | 41 | 139 |
v4
v6
|
| AS33891 CORE-BACKBONE | 36 | 95 |
v4
v6
|
| AS22356 ASN22356 | 18 | 39 |
v4
|
| AS6204 ZET-NET | 17 | 30 |
v4
|
| AS6663 TTI-NET | 12 | 24 |
v4
|
No rows match “”.
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Observed downstreams
24 networks seen after AS25512 in AS paths
| Families | |||
|---|---|---|---|
| AS216450 prgaero | 116 | 695 |
v4
|
| AS43614 ECONOMIA-CZ | 180 | 487 |
v4
v6
|
| AS56450 ALBERON_AS | 163 | 421 |
v4
v6
|
| AS20609 kazaczsro | 244 | 416 |
v4
v6
|
| AS51331 ModernTV | 51 | 375 |
v4
v6
|
| AS206159 cz-fresh | 178 | 322 |
v4
v6
|
| AS200828 THOSTING-AS | 151 | 266 |
v4
v6
|
| AS47868 SUPRO-AS | 91 | 231 |
v4
v6
|
| AS43507 RETE-AS | 138 | 227 |
v4
|
| AS51524 ASNETDELUXE | 138 | 166 |
v4
|
| AS197550 ASINET4YOU | 138 | 166 |
v4
|
| AS3161 ASITPROFI | 137 | 165 |
v4
|
| AS56827 ASMIRNETCZ | 136 | 165 |
v4
|
| AS200355 CADCANET | 136 | 165 |
v4
|
| AS47131 PH | 112 | 134 |
v4
|
| AS50975 AVX_AS | 110 | 132 |
v4
|
| AS213387 TESUNET | 96 | 115 |
v4
|
| AS56717 RESAL-AS | 67 | 112 |
v4
v6
|
| AS20708 SKODA-AUTO | 70 | 92 |
v4
v6
|
| AS6881 NIXCZ | 28 | 60 |
v4
v6
|
| AS60275 AS_RVTECH | 42 | 48 |
v6
|
| AS48417 ITS-CZ | 5 | 13 |
v4
v6
|
| AS51449 KTUO-AS | 2 | 6 |
v4
v6
|
| AS35046 OMEGAPLUS-AS | 3 | 5 |
v4
v6
|
No rows match “”.
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Uncertain adjacencies
5 adjacencies that may be an artefact of collector peering
| Families | |||
|---|---|---|---|
| AS24482 SGGS-AS-AP | 17 | 194 |
v4
v6
|
| AS51184 FONIRA | 16 | 76 |
v4
v6
|
| AS29504 LBCFREE | 20 | 45 |
v4
v6
|
| AS40994 Alwyzon | 17 | 40 |
v4
v6
|
| AS49544 i3Dnet | 16 | 37 |
v4
v6
|
No rows match “”.
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