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ASN Lookup Tool
AS1103 SURFNET-NL

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS1103
Organisation
SURF B.V.
Name
SURFNET-NL
Total IPv4 Addresses
6145664
Total IPv4 Prefixes
134
Total IPv6 Prefixes
20
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#84 out of 76,372
Registry
Ripe
Registered Country
NL flag NL
Registered Country Name
Netherlands (the)
Registered Date
2002-09-23
Registration Last Change
2023-07-20
Receiving From

The list of active Autonomous Systems (ASs) which send traffic to that ASN.

ASN
Organisation
AS20562
NL flagBroadband Hosting B.V.
AS56662
PL flagMarcin Gondek
AS3209
DE flagVodafone GmbH
AS1239
US flagSprint
AS2914
US flagNTT America, Inc.
Showing 5 of 78
Transit To

The list of active Autonomous Systems (ASs) which receive traffic from that ASN.

 

ASN
Organisation
AS51078
FR flagZIOSTING SAS
AS4200000210
WORLD flagPrivate Use AS
AS199471
DE flagMarcel Straub
AS216333
DE flagNetDev UG (haftungsbeschraenkt)
AS203496
CH flagOlaf Bernhard Rudolf Baumert
Showing 5 of 1589
IPv4 Active Prefixes

This provides the list of IPv4 address space routes/prefixes currently announced on Border Gateway Protocol (BGP).

Prefix129.125.0.0/16
Range From129.125.0.0
Range To129.125.255.255
Prefix130.37.0.0/16
Range From130.37.0.0
Range To130.37.255.255
Prefix130.112.0.0/16
Range From130.112.0.0
Range To130.112.255.255
Prefix131.174.0.0/16
Range From131.174.0.0
Range To131.174.255.255
Prefix131.211.0.0/16
Range From131.211.0.0
Range To131.211.255.255
Showing 5 of 134
IPv6 Active Prefixes
Prefix2001:610::/40
Range From2001:610::
Range To2001:610:ff:ffff:ffff:ffff:ffff:ffff
Prefix2001:610:100::/43
Range From2001:610:100::
Range To2001:610:11f:ffff:ffff:ffff:ffff:ffff
Prefix2001:610:121::/48
Range From2001:610:121::
Range To2001:610:121:ffff:ffff:ffff:ffff:ffff
Prefix2001:610:122::/47
Range From2001:610:122::
Range To2001:610:123:ffff:ffff:ffff:ffff:ffff
Prefix2001:610:124::/46
Range From2001:610:124::
Range To2001:610:127:ffff:ffff:ffff:ffff:ffff
Showing 5 of 20
Autonomous System (AS) is a network (or collection of networks) that are all managed and supervised by a single entity or organisation. This tool provides a comprehensive ownership and connectivity report for any given AS number.