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ASN Lookup Tool
AS206747 NCSC

Powered By:
ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS206747
Organisation
UK Ministry of Defence
Name
NCSC
Total IPv4 Addresses
2816
Total IPv4 Prefixes
9
Total IPv6 Prefixes
9
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#19,649 out of 77,421
Registry
Ripe
Registered Country
GB flag GB
Registered Country Name
United Kingdom of Great Britain and Northern Ireland (the)
Registered Date
2016-11-11
Registration Last Change
2018-09-04
Receiving From

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

ASN
Organisation
AS174
US flagCogent Communications
AS3257
US flagGTT Communications Inc.
AS2914
US flagNTT America, Inc.
AS1299
SE flagArelion Sweden AB
IPv4 Active Prefixes

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

Prefix25.25.25.0/24
Range From25.25.25.0
Range To25.25.25.255
Prefix25.26.27.0/24
Range From25.26.27.0
Range To25.26.27.255
Prefix25.129.196.0/23
Range From25.129.196.0
Range To25.129.197.255
Prefix25.129.198.0/23
Range From25.129.198.0
Range To25.129.199.255
Prefix195.130.28.0/24
Range From195.130.28.0
Range To195.130.28.255
Showing 5 of 9
IPv6 Active Prefixes
Prefix2a08:600::/48
Range From2a08:600::
Range To2a08:600:0:ffff:ffff:ffff:ffff:ffff
Prefix2a08:600:1::/48
Range From2a08:600:1::
Range To2a08:600:1:ffff:ffff:ffff:ffff:ffff
Prefix2a08:600:2::/48
Range From2a08:600:2::
Range To2a08:600:2:ffff:ffff:ffff:ffff:ffff
Prefix2a08:600:3::/48
Range From2a08:600:3::
Range To2a08:600:3:ffff:ffff:ffff:ffff:ffff
Prefix2a08:600:4::/48
Range From2a08:600:4::
Range To2a08:600:4:ffff:ffff:ffff:ffff:ffff
Showing 5 of 9
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.