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AS1103

SURF B.V.

AS1103 is SURF B.V. (surf.nl). It announces 7,191,264 IPv4 addresses in 99 prefixes, and 4 IPv6 prefixes.

The Netherlands· RIPE· allocated 1993-09-01· education

7,191,264
IPv4 addresses announced
99
IPv4 prefixes
4
IPv6 prefixes
86.41%
of its routes RPKI-valid
7,191,296
of its IPv4 geolocated
1
country

Where its space is

The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.

  1. The Netherlands7,191,296 · 100.00%

Registry record

Its ASN Whois record, as the registry publishes it.

handle
SURFNET-NL
name
SURF B.V.
org
ORG-Sb3-RIPE
org name
SURF B.V.
org address
P.O. Box 19035, 3501 DA, Utrecht, NETHERLANDS
org country
NL
country
NL
source
ripe
status
LEGACY
created
2002-09-23
updated
2026-09-25
descr
SURFnet, The Netherlands
remarks
For security/abuse issues: / "mnt-irt: irt-SURFnet-CERT" or / contact <abuse@surfnet.nl>
maintainer
RIPE-NCC-LEGACY-MNT|AS1103-MNT
abuse name
SURF Network Maintainer
abuse email
cert@surfcert.nl
abuse phone
+31 88 7873000
abuse kind
role

What the databases see

Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.

IPv4 prefixes

Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.

99 prefixes
PREFIXCOUNTRYRPKIPEERSFIRST SEEN
129.125.0.0/16The Netherlandsvalid192026-10-02
130.37.0.0/16The Netherlandsvalid192026-10-02
131.174.0.0/16The Netherlandsvalid192026-10-02
131.211.0.0/16The Netherlandsvalid192026-10-02
131.224.0.0/16The Netherlandsvalid192026-10-02
132.229.0.0/16The Netherlandsvalid192026-10-02
134.221.0.0/16The Netherlandsvalid192026-10-02
136.231.0.0/16The Netherlandsvalid192026-10-02
137.56.0.0/16The Netherlandsvalid192026-10-02
137.120.0.0/16The Netherlandsvalid192026-10-02
137.224.0.0/16The Netherlandsvalid192026-10-02
139.63.0.0/16The Netherlandsnot found192026-10-02
141.252.0.0/16The Netherlandsvalid192026-10-02
143.121.0.0/16The Netherlandsnot found192026-10-02
145.0.0.0/16The Netherlandsvalid192026-10-02
145.1.0.0/17The Netherlandsnot found192026-10-02
145.2.0.0/15The Netherlandsvalid192026-10-02
145.5.0.0/16The Netherlandsvalid192026-10-02
145.9.0.0/16The Netherlandsvalid192026-10-02
145.19.0.0/16The Netherlandsvalid192026-10-02
145.20.0.0/16The Netherlandsvalid192026-10-02
145.23.0.0/16The Netherlandsvalid192026-10-02
145.24.0.0/16The Netherlandsvalid192026-10-02
145.28.0.0/15The Netherlandsvalid192026-10-02
145.33.0.0/16The Netherlandsvalid192026-10-02
145.37.0.0/16The Netherlandsvalid192026-10-02
145.38.0.0/15The Netherlandsvalid192026-10-02
145.41.0.0/16The Netherlandsvalid192026-10-02
145.44.0.0/16The Netherlandsvalid192026-10-02
145.48.0.0/15The Netherlandsvalid192026-10-02
145.51.0.0/16The Netherlandsvalid192026-10-02
145.52.0.0/16The Netherlandsvalid192026-10-02
145.74.0.0/15The Netherlandsvalid192026-10-02
145.76.0.0/16The Netherlandsvalid192026-10-02
145.81.0.0/16The Netherlandsvalid192026-10-02
145.85.0.0/16The Netherlandsvalid192026-10-02
145.88.0.0/15The Netherlandsvalid192026-10-02
145.90.0.0/16The Netherlandsvalid192026-10-02
145.91.0.0/16The Netherlandsvalid192026-10-02
145.92.0.0/15The Netherlandsvalid192026-10-02
145.95.0.0/16The Netherlandsvalid192026-10-02
145.96.0.0/16The Netherlandsvalid192026-10-02
145.97.0.0/20The Netherlandsvalid192026-10-02
145.97.16.0/22The Netherlandsvalid192026-10-02
145.97.20.0/22The Netherlandsvalid192026-10-02
145.97.24.0/21The Netherlandsvalid192026-10-02
145.97.48.0/20The Netherlandsvalid192026-10-02
145.97.64.0/18The Netherlandsvalid192026-10-02
145.97.128.0/18The Netherlandsvalid192026-10-02
145.97.192.0/18The Netherlandsvalid192026-10-02
145.98.0.0/16The Netherlandsvalid192026-10-02
145.98.16.0/24also AS1653The Netherlandsvalid162026-10-02
145.100.0.0/15The Netherlandsvalid192026-10-02
145.102.0.0/16The Netherlandsvalid192026-10-02
145.103.0.0/16The Netherlandsvalid192026-10-02
145.107.0.0/16The Netherlandsvalid192026-10-02
145.107.24.0/22The Netherlandsvalid192026-10-02
145.108.0.0/16The Netherlandsvalid192026-10-02
145.116.64.0/18The Netherlandsvalid192026-10-02
145.116.128.0/18The Netherlandsvalid192026-10-02
145.116.192.0/20The Netherlandsvalid192026-10-02
145.116.224.0/19The Netherlandsvalid192026-10-02
145.117.0.0/16The Netherlandsvalid192026-10-02
145.118.0.0/16The Netherlandsvalid192026-10-02
145.120.0.0/14The Netherlandsvalid192026-10-02
145.124.0.0/15The Netherlandsvalid192026-10-02
145.126.0.0/16The Netherlandsvalid192026-10-02
145.127.0.0/17The Netherlandsvalid192026-10-02
145.136.0.0/15The Netherlandsvalid192026-10-02
145.137.128.0/18The Netherlandsvalid192026-10-02
145.138.0.0/16The Netherlandsvalid192026-10-02
145.140.0.0/14The Netherlandsvalid192026-10-02
145.144.0.0/12The Netherlandsvalid182026-10-02
145.160.0.0/12The Netherlandsvalid182026-10-02
156.83.0.0/16The Netherlandsvalid192026-10-02
192.16.188.0/23The Netherlandsnot found192026-10-02
192.31.231.0/24The Netherlandsvalid192026-10-02
192.33.36.0/24The Netherlandsnot found192026-10-02
192.42.113.0/24The Netherlandsnot found192026-10-02
192.42.114.0/23The Netherlandsnot found192026-10-02
192.42.120.0/22The Netherlandsnot found192026-10-02
192.42.124.0/22The Netherlandsvalid192026-10-02
192.43.212.0/24The Netherlandsvalid192026-10-02
192.87.0.0/16The Netherlandsvalid192026-10-02
192.104.140.0/24The Netherlandsvalid192026-10-02
193.176.235.0/24The Netherlandsvalid192026-10-02
193.177.176.0/22The Netherlandsvalid192026-10-02
194.13.112.0/21The Netherlandsnot found192026-10-02
194.26.8.0/22The Netherlandsvalid192026-10-02
194.26.12.0/22The Netherlandsvalid192026-10-02
194.53.88.0/24The Netherlandsnot found192026-10-02
194.53.89.0/24The Netherlandsnot found192026-10-02
194.53.92.0/24The Netherlandsvalid192026-10-02
194.53.94.0/24The Netherlandsnot found192026-10-02
194.53.95.0/24The Netherlandsnot found192026-10-02
194.104.124.0/23The Netherlandsvalid192026-10-02
194.104.240.0/20The Netherlandsvalid192026-10-02
194.171.0.0/16The Netherlandsvalid192026-10-02
195.169.0.0/16The Netherlandsvalid192026-10-02

IPv6 prefixes

Every IPv6 prefix BGP Route saw it announce.

4 prefixes
PREFIXCOUNTRYRPKIPEERSFIRST SEEN
2001:610::/29The Netherlandsvalid202026-10-02
2001:610:5ea::/48The Netherlandsvalid122026-10-02
2001:67c:1200::/48The Netherlandsnot found202026-10-02
2001:67c:262c::/48The Netherlandsvalid202026-10-02
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