2a01:1b0::/32 - DUOCAST B.V (AS31477)
CIDR
2a01:1b0::/32
IP Version
IPv6
Addresses
79228.1Y
Mask
/32
Country
🇳🇱 The Netherlands
City
Groningen (Schilders- en Zeeheldenwijk)
RIR
RIPE NCC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
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| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 2a01:1b0::/32 | AS31477 DUOCAST-AS Duocast B.V. | Valid | RIPE | 2026-10-12 |
More-Specific Announcements
1 more-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 2a01:1b0:c000::/44 | AS51923 NBA-AS 'Nothing But Air' Services B.V. | Valid | - | 2026-10-12 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 2a01:1b0::/32 | AS31477 | /32 | ripe |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS31477 | RIPE | MNT-DUOCAST | 2006-10-28 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 2a01:1b0:201::/48 | 🇳🇱NL | assigned | |
| 2a01:1b0:202::/48 | 🇳🇱NL | assigned | |
| 2a01:1b0:214::/48 | 🇳🇱NL | assigned | |
| 2a01:1b0:705::/48 | 🇳🇱NL | assigned | |
| 2a01:1b0:7998:446::/64 | 🇳🇱NL | assigned | |
| 2a01:1b0:7999:402::/64 | 🇳🇱NL | assigned | |
| 2a01:1b0:7999:446::/64 | 🇳🇱NL | assigned | |
| 2a01:1b0:c000::/44 | AS51923 | 🇳🇱NL | assigned |
| 2a01:1b0:ffff::/48 | 🇳🇱NL | assigned |
Origin ASN
AS31477
DUOCAST-AS Duocast B.V.
Related Prefixes
Geolocation
Country🇳🇱The NetherlandsNL
RegionGroningen
CityGroningen (Schilders- en Zeeheldenwijk)
Coordinates53.2304, 6.5321 ↗
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 transfers in the RIPE NCC regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/2a01:1b0::/32Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/2a01:1b0::/32" | jq
External Links