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ASN Lookup Tool
AS8220 COLT

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS8220
Organisation
COLT Technology Services Group Limited
Name
COLT
Total IPv4 Addresses
1,488,639
Total IPv4 Prefixes
322
Total IPv6 Prefixes
34
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#278 out of 79,753
Registry
Ripe
Registered Country
GB flagGB
Registered Country Name
United Kingdom of Great Britain and Northern Ireland (the)
Registered Date
2002-08-29
Registration Last Change
2026-02-05
Receiving From
ASN
Organisation
AS33891
DE flagCore-Backbone GmbH
AS58941
AU flagMegaport Pty Ltd
AS17676
JP flagSoftBank Mobile Corp. Tokyo Port City Takeshiba ..
AS3320
DE flagDeutsche Telekom AG
AS3356
US flagLevel 3 Parent, LLC
Showing 5 of 124
Transit To
ASN
Organisation
AS137518
WORLD flagPrivate Use AS
AS65197
WORLD flagPrivate Use AS
AS64902
WORLD flagPrivate Use AS
AS65330
WORLD flagPrivate Use AS
AS64995
WORLD flagPrivate Use AS
Showing 5 of 2138
IPv4 Active Prefixes
PrefixRange FromRange To
27.110.0.0/2027.110.0.027.110.15.255
27.110.16.0/2227.110.16.027.110.19.255
27.110.20.0/2327.110.20.027.110.21.255
38.210.238.0/2438.210.238.038.210.238.255
46.28.184.0/2446.28.184.046.28.184.255
Showing 5 of 322
IPv6 Active Prefixes
PrefixRange FromRange To
2001:678:868::/482001:678:868::2001:678:868:ffff:ffff:ffff:ffff:ffff
2001:678:1020::/482001:678:1020::2001:678:1020:ffff:ffff:ffff:ffff:ffff
2001:67c:424::/482001:67c:424::2001:67c:424:ffff:ffff:ffff:ffff:ffff
2001:67c:2b34::/482001:67c:2b34::2001:67c:2b34:ffff:ffff:ffff:ffff:ffff
2001:920::/322001:920::2001:920:ffff:ffff:ffff:ffff:ffff:ffff
Showing 5 of 34