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API Packages
IP Geolocation
Reverse Geocoding
Phone & Email Verification
Network Engineering
Free API
Tools
What is my IP?
IP Lookup
ASN Lookup
Network Lookup
Insights
Daily IP Geolocation Accuracy Report
ASN Rank by IPv4 space
Tor Exit Nodes
Bogon Routes
IPv4 Address Space Report
IPv6 Address Space Report
Resources
Getting Started
Support Articles
Blog
Sign In
Sign Up
ASN Lookup Tool
AS33491 COMCAST-33491
Powered By:
ASN Extended Info API
&
BGP Active Prefixes API
Home
Asn Lookup
As33491
ASN DETAILS
MAP
JSON VIEW
ASN Details
ASN
AS33491
Organisation
Comcast Cable Communications, LLC
Name
COMCAST-33491
Total IPv4 Addresses
3,130,112
Total IPv4 Prefixes
342
Total IPv6 Prefixes
248
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#148 out of 79,013
Registry
Arin
Registered Country
US
Registered Country Name
United States of America (the)
Registered Date
2004-12-30
Registration Last Change
2021-01-25
Receiving From
ASN
Organisation
AS7018
AT&T Enterprises, LLC
AS7922
Comcast Cable Communications, LLC
AS3356
Level 3 Parent, LLC
AS174
Cogent Communications, LLC
Transit To
ASN
Organisation
AS17
Purdue University
AS19855
Masergy Communications, Inc.
AS103
Northwestern University
AS33442
Zebra Technologies Corporation
AS20452
BALL STATE UNIVERSITY
Showing 5 of 247
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IPv4 Active Prefixes
Prefix
Range From
Range To
23.25.0.0/18
23.25.0.0
23.25.63.255
23.177.32.0/24
23.177.32.0
23.177.32.255
24.1.0.0/16
24.1.0.0
24.1.255.255
24.12.0.0/14
24.12.0.0
24.15.255.255
24.104.47.0/24
24.104.47.0
24.104.47.255
Showing 5 of 342
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IPv6 Active Prefixes
Prefix
Range From
Range To
2001:558:300::/44
2001:558:300::
2001:558:30f:ffff:ffff:ffff:ffff:ffff
2001:558:320::/44
2001:558:320::
2001:558:32f:ffff:ffff:ffff:ffff:ffff
2001:558:3b0::/44
2001:558:3b0::
2001:558:3bf:ffff:ffff:ffff:ffff:ffff
2001:558:5005::/48
2001:558:5005::
2001:558:5005:ffff:ffff:ffff:ffff:ffff
2001:558:5007::/48
2001:558:5007::
2001:558:5007:ffff:ffff:ffff:ffff:ffff
Showing 5 of 248
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Look Up
Enter AS Number eg: AS714 or 714