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ASN Lookup Tool
AS33665 CMCS

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS33665
Organisation
Comcast Cable Communications, LLC
Name
CMCS
Total IPv4 Addresses
110,848
Total IPv4 Prefixes
44
Total IPv6 Prefixes
7
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#1,869 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
Transit To
ASN
Organisation
AS400973
US flagUNIVERSAL HEALTH SERVICES
AS21761
US flagClub Car, LLC
IPv4 Active Prefixes
PrefixRange FromRange To
23.31.120.0/2223.31.120.023.31.123.255
50.76.144.0/2250.76.144.050.76.147.255
50.184.160.0/2250.184.160.050.184.163.255
50.193.240.0/2250.193.240.050.193.243.255
50.244.88.0/2250.244.88.050.244.91.255
Showing 5 of 44
IPv6 Active Prefixes
PrefixRange FromRange To
2001:558:360::/442001:558:360::2001:558:36f:ffff:ffff:ffff:ffff:ffff
2001:558:fe3c::/482001:558:fe3c::2001:558:fe3c:ffff:ffff:ffff:ffff:ffff
2001:559:8281::/482001:559:8281::2001:559:8281:ffff:ffff:ffff:ffff:ffff
2001:559:868b::/482001:559:868b::2001:559:868b:ffff:ffff:ffff:ffff:ffff
2601:100::/262601:100::2601:13f:ffff:ffff:ffff:ffff:ffff:ffff
Showing 5 of 7