Autonomous system profile

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

AS1101

Announcement observedARIN

SURF B.V. · IP-EEND-AS

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

Last active10/19/2026, 17:10:30Snapshot expired

View network topology RDAP registration

ASN: AS1101
Registration country: Netherlands
Name: SURF B.V.
Abbreviation: IP-EEND-AS
Registration date: 8/21/2002, 16:06:20
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
145.102.4.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/19/2026, 08:00:00	✓	×	Currently valid
145.111.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/23/2026, 16:00:00	9/24/2026, 08:00:00	✓	×	Historical record
145.192.0.0/12BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/19/2026, 08:00:00	✓	×	Currently valid
145.208.0.0/13BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/19/2026, 08:00:00	✓	×	Currently valid
145.216.0.0/15BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/21/2026, 08:00:00	✓	×	Historical record
145.220.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/19/2026, 08:00:00	✓	×	Currently valid
145.99.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/19/2026, 08:00:00	✓	×	Currently valid
185.100.59.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/19/2026, 08:00:00	✓	×	Currently valid
185.17.73.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/19/2026, 08:00:00	✓	×	Currently valid
192.12.54.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/19/2026, 08:00:00	✓	×	Currently valid
192.150.94.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/19/2026, 08:00:00	✓	×	Currently valid
192.16.200.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/19/2026, 08:00:00	✓	×	Currently valid
192.42.117.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/19/2026, 08:00:00	✓	×	Currently valid
192.42.118.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/19/2026, 08:00:00	✓	×	Currently valid
192.42.118.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/19/2026, 08:00:00	✓	×	Currently valid
192.42.119.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/19/2026, 08:00:00	✓	×	Currently valid
192.42.128.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/19/2026, 08:00:00	✓	×	Currently valid
44.137.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/19/2026, 08:00:00	✓	×	Currently valid

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

Registration and sources

Organization: SURF B.V.
RIR: ARIN
Registration country: Netherlands
Registration date: 8/21/2002, 16:06:20
Abuse contact: cert@surfcert.nl

Snapshot trend

10/19/2026, 17:10:3016 v43 v658 Upstream · 61 Uncertain

10/13/2026, 08:38:4616 v43 v659 Upstream · 61 Uncertain

10/10/2026, 02:11:5616 v43 v663 Upstream · 60 Uncertain

9/29/2026, 07:25:0318 v43 v663 Upstream · 57 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