2a00:1807::/32 - CEZNET S.R.O (AS57728)
CIDR
2a00:1807::/32
IP Version
IPv6
Addresses
79228.1Y
Mask
/32
Country
🇨🇿 Czechia
City
Mladá Boleslav (Mladá Boleslav II)
RIR
RIPE
Status
assigned
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 2a00:1807::/32 | AS57728 CEZNET-AS CEZNET s.r.o. | Valid | RIPE | 2026-10-11 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 2a00:1807::/32 | AS57728 | /32 | ripe |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS57728 | RIPE | CEZNET-MNT | 2025-09-16 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 2a00:1807:5::/48 | 🇨🇿CZ | assigned | |
| 2a00:1807:6::/48 | 🇨🇿CZ | assigned | |
| 2a00:1807:7::/48 | 🇨🇿CZ | assigned |
Transfer History
Registry transfers of 2a00:1807::/32, blocks inside it, or blocks containing it.
- 2a00:1800::/29M&A ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 2a00:1800::/29 | Cerberos s.r.o. | CEZNET s.r.o. | M&A |
Origin ASN
AS57728
CEZNET-AS CEZNET s.r.o.
Related Prefixes
Geolocation
Country🇨🇿CzechiaCZ
RegionCentral Bohemia
CityMladá Boleslav (Mladá Boleslav II)
Coordinates50.4145, 14.9112 ↗
Abuse Contact
Learn more
- RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
- RPKI validatorCheck ROA coverage for any prefix or ASN
- What is BGP?How prefixes are announced and routed
- More-specific prefixesGlossary: covering and more-specific routes
- IPv4 transfer marketTransfers published by all five RIRs
API
Open https://api.ipctl.io/v1/prefix/2a00:1807::/32Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/2a00:1807::/32" | jq
External Links