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ASN Lookup Tool
AS21077 ISP4BAS

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS21077
Organisation
Specialist Computer Centres Plc
Name
ISP4BAS
Total IPv4 Addresses
6,400
Total IPv4 Prefixes
10
Total IPv6 Prefixes
0
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#12,502 out of 79,113
Registry
Ripe
Registered Country
GB flagGB
Registered Country Name
United Kingdom of Great Britain and Northern Ireland (the)
Registered Date
2002-04-22
Registration Last Change
2025-08-20
Receiving From
ASN
Organisation
AS31727
GB flagNode4 Limited
AS39545
GB flagFluidone Ltd.
IPv4 Active Prefixes
PrefixRange FromRange To
80.86.32.0/2080.86.32.080.86.47.255
185.98.180.0/24185.98.180.0185.98.180.255
185.98.181.0/24185.98.181.0185.98.181.255
185.98.182.0/24185.98.182.0185.98.182.255
185.106.220.0/24185.106.220.0185.106.220.255
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