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ASN Lookup Tool
AS33668 CMCS

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS33668
Organisation
Comcast Cable Communications, LLC
Name
CMCS
Total IPv4 Addresses
1,847,808
Total IPv4 Prefixes
188
Total IPv6 Prefixes
76
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#217 out of 79,196
Registry
Arin
Registered Country
US flagUS
Registered Country Name
United States of America (the)
Registered Date
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.
AS13325
US flagMichigan State Government
AS63102
US flagMichigan Education Special Services Association
AS393256
US flagDTE Energy Company
AS26463
US flagMacomb Intermediate School District
Showing 5 of 72
IPv4 Active Prefixes
PrefixRange FromRange To
24.127.0.0/1624.127.0.024.127.255.255
24.128.128.0/1724.128.128.024.128.255.255
50.76.176.0/2050.76.176.050.76.191.255
50.77.192.0/1850.77.192.050.77.255.255
50.185.64.0/1850.185.64.050.185.127.255
Showing 5 of 188
IPv6 Active Prefixes
PrefixRange FromRange To
2001:558:110::/442001:558:110::2001:558:11f:ffff:ffff:ffff:ffff:ffff
2001:558:500e::/482001:558:500e::2001:558:500e:ffff:ffff:ffff:ffff:ffff
2001:558:6007::/482001:558:6007::2001:558:6007:ffff:ffff:ffff:ffff:ffff
2001:558:fe10::/472001:558:fe10::2001:558:fe11:ffff:ffff:ffff:ffff:ffff
2001:559:44::/482001:559:44::2001:559:44:ffff:ffff:ffff:ffff:ffff
Showing 5 of 76