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ASN Lookup Tool
AS33660 CMCS

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS33660
Organisation
Comcast Cable Communications, LLC
Name
CMCS
Total IPv4 Addresses
610,304
Total IPv4 Prefixes
98
Total IPv6 Prefixes
69
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#518 out of 79,015
Registry
Arin
Registered Country
US flagUS
Registered Country Name
United States of America (the)
Registered Date
2005-02-16
Registration Last Change
2021-01-25
Receiving From
ASN
Organisation
AS7922
US flagComcast Cable Communications, LLC
AS3356
US flagLevel 3 Parent, LLC
Transit To
ASN
Organisation
AS13335
US flagCloudflare, Inc.
AS65401
WORLD flagPrivate Use AS
AS65501
WORLD flagPrivate Use AS
AS11052
US flagIntermountain Health Care, Inc.
AS65201
WORLD flagPrivate Use AS
Showing 5 of 65
IPv4 Active Prefixes
PrefixRange FromRange To
23.30.48.0/2023.30.48.023.30.63.255
24.2.64.0/1924.2.64.024.2.95.255
24.2.96.0/2024.2.96.024.2.111.255
24.10.128.0/1724.10.128.024.10.255.255
24.11.0.0/1724.11.0.024.11.127.255
Showing 5 of 98
IPv6 Active Prefixes
PrefixRange FromRange To
2001:558:100::/442001:558:100::2001:558:10f:ffff:ffff:ffff:ffff:ffff
2001:558:5028::/482001:558:5028::2001:558:5028:ffff:ffff:ffff:ffff:ffff
2001:558:6008::/482001:558:6008::2001:558:6008:ffff:ffff:ffff:ffff:ffff
2001:558:fe0a::/472001:558:fe0a::2001:558:fe0b:ffff:ffff:ffff:ffff:ffff
2001:559:29::/482001:559:29::2001:559:29:ffff:ffff:ffff:ffff:ffff
Showing 5 of 69