ASN Lookup Tool
AS5400 British Telecommunications PLC

An 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.

ASN Details

ASN
AS5400
Organisation
British Telecommunications PLC
AS Name
BT
IPv4 Addresses Announced
708,096
IPv4 Prefixes Announced
119
Bogon Prefixes Announced
0
IPv4 Space Rank
#470 out of 75,316
Registry
RIPE
Registered Country
GB flag GB
Registration Date
2002-08-29
Registration Change
2022-07-18

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Showing 10 of 41 Results View More >

Transit To

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Organisation
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Organisation
GB flag British Telecommunications PLC
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IT flag BT Italia S.p.A.
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Active Prefixes

Showing 10 of 119 Results View More >