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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
7,132,671
Total IPv4 Prefixes
136
Total IPv6 Prefixes
27
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#69 out of 78,103
Registry
Ripe
Registered Country
NL flag NL
Registered Country Name
Netherlands (Kingdom of the)
Registered Date
2002-09-23
Registration Last Change
2024-12-23
Receiving From

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

ASN
Organisation
AS20562
NL flagBroadband Hosting B.V.
AS200242
DE flagEmber Ana Reimer
AS33891
DE flagCore-Backbone GmbH
AS56662
PL flagMarcin Gondek
AS3257
US flagGTT Communications Inc.
Showing 5 of 83
Transit To

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

 

ASN
Organisation
AS4200042101
WORLD flagPrivate Use AS
AS4200042121
WORLD flagPrivate Use AS
AS35782
NL flagJan Paul Dekker
AS200372
DE flagLars Ewald
AS214643
US flagSTARINA INTERNATIONAL GROUP INC
Showing 5 of 1679
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 136
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 27
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.