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ASN Lookup Tool
AS1837 NCIA

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS1837
Organisation
The North Atlantic Treaty Organization
Name
NCIA
Total IPv4 Addresses
512
Total IPv4 Prefixes
2
Total IPv6 Prefixes
0
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#50,391 out of 79,076
Registry
Ripe
Registered Country
BE flagBE
Registered Country Name
Belgium
Registered Date
2002-08-21
Registration Last Change
2024-05-31
Receiving From

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

ASN
Organisation
AS1103
NL flagSURF B.V.
IPv4 Active Prefixes

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

PrefixRange FromRange To
91.223.21.0/2491.223.21.091.223.21.255
192.41.140.0/24192.41.140.0192.41.140.255