Autonomous system profile

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

AS2603

Announcement observedRIPE NCC

NORDUNET NORDUnet · NORDUNET

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

Last active10/14/2026, 12:08:28Snapshot expired

View network topology RDAP registration

ASN: AS2603
Registration country: Denmark
Name: NORDUNET NORDUnet
Abbreviation: NORDUNET
Registration date: 5/7/2002, 09:38:31
Status: Announcement observed
RIR: RIPE NCC

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
109.105.112.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/15/2026, 08:00:00	✓	×	Currently valid
109.105.120.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/15/2026, 08:00:00	✓	×	Currently valid
109.105.96.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/15/2026, 08:00:00	✓	×	Currently valid
185.174.116.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/15/2026, 08:00:00	✓	×	Currently valid
192.36.171.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/15/2026, 08:00:00	✓	×	Currently valid
193.10.252.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/15/2026, 08:00:00	✓	×	Currently valid
193.10.254.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/15/2026, 08:00:00	✓	×	Currently valid
193.10.255.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/15/2026, 08:00:00	✓	×	Currently valid
193.11.3.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/15/2026, 08:00:00	✓	×	Currently valid
194.68.13.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/15/2026, 08:00:00	✓	×	Currently valid

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

Registration and sources

Organization: NORDUNET NORDUnet
RIR: RIPE NCC
Registration country: Denmark
Registration date: 5/7/2002, 09:38:31
Abuse contact: abuse@nordu.net

Snapshot trend

10/14/2026, 12:08:2810 v42 v677 Upstream · 60 Uncertain

10/11/2026, 22:39:0010 v42 v678 Upstream · 60 Uncertain

10/10/2026, 17:46:3310 v42 v678 Upstream · 60 Uncertain

10/8/2026, 04:43:0710 v42 v678 Upstream · 60 Uncertain

10/7/2026, 03:45:2410 v42 v679 Upstream · 61 Uncertain

10/6/2026, 02:32:2610 v42 v680 Upstream · 60 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 · rir-rdap-asn · iana-rdap-asn-bootstrap