Autonomous system profile

Review registration details, announced prefixes, network relationships and historical snapshots.

AS212151

Announcement observedRIPE NCC

Gemeente Den Helder · GEM-DEN-HELDER

This profile is assembled from CHA.LA's normalized registration, routing and observation snapshots.

Last active10/12/2026, 18:36:26Snapshot expired

View network topology RDAP registration

ASN: AS212151
Registration country: Netherlands
Name: Gemeente Den Helder
Abbreviation: GEM-DEN-HELDER
Registration date: 12/15/2020, 12:28:54
Status: Announcement observed
RIR: RIPE NCC

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
91.213.53.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/28/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Currently valid

BGP prefixes have no geographic country; the column is marked not applicable.

Registration and sources

Organization: Gemeente Den Helder
RIR: RIPE NCC
Registration country: Netherlands
Registration date: 12/15/2020, 12:28:54
Abuse contact: ict@denhelder.nl

Snapshot trend

10/12/2026, 18:36:261 v41 v62 Upstream · 0 Uncertain

ASN route snapshotThis page reads collected ASN, prefix, relationship and history data. External interfaces are used for initial collection and scheduled refreshes.Source keys: cha-la-external-routing · iana-rdap-asn-bootstrap · rir-rdap-asn