Country
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ASN LANDING PAGE
AS33667
CMCS - Comcast Cable Communications, LLC
Last updated · Jul 20, 2026
Total prefixes
107
IPv4 prefixes
47
IPv6 prefixes
60
ASN summary
How to read the scale of AS33667
CMCS - Comcast Cable Communications, LLC currently reports 107 prefixes and 42 upstream, downstream, or peer relationships. These counts describe the current dataset; they do not by themselves prove network quality, reach, or service use.
What can an ASN page answer?
An ASN page shows the public organization label, country or region, BGP prefixes, and available peer and upstream relationships. It adds network context but cannot confirm a website host, physical facility, security status, or service quality.
How should you read the organization and region fields?
CMCS - Comcast Cable Communications, LLC is currently associated with an unknown region. These values come from public network sources and are useful lookup clues; an organization label, registration region, and actual service location may differ.
How should you verify the AS33667 result?
The page shows ASN data returned by the current upstream query; interpret it with the update time. Open representative IP pages from the same network and compare prefixes, source labels, and query times. Verify operator or service claims with the relevant registry or network operator.
How to verify this ASN result
AS33667 ASN lookupAS33667 BGPAS33667 peersAS33667 prefixesAS33667 upstreamsCMCS - Comcast Cable Communications, LLC ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
AS32688
AS32688
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AS13335
AS13335
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AS23338
AS23338
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AS20940
AS20940
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AS27580
AS27580
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AS54113
AS54113
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AS398204
AS398204
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AS17381
AS17381
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AS22617
AS22617
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AS11620
AS11620
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AS11829
AS11829
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AS46867
AS46867
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AS53782
AS53782
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AS22768
AS22768
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AS36040
AS36040
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AS399761
AS399761
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AS2894
AS2894
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AS14443
AS14443
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AS397813
AS397813
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AS23411
AS23411
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AS46341
AS46341
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AS395536
AS395536
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AS25753
AS25753
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AS394377
AS394377
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AS396484
AS396484
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AS13511
AS13511
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AS397062
AS397062
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AS18841
AS18841
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AS398572
AS398572
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AS11574
AS11574
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AS55032
AS55032
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AS397909
AS397909
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AS13395
AS13395
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AS32537
AS32537
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AS397787
AS397787
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AS27009
AS27009
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AS32504
AS32504
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AS32928
AS32928
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AS394121
AS394121
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AS5081
AS5081
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Peers
Prefix inventory
| Prefix | Name | Country |
|---|---|---|
| 103.111.63.0/24 | AS33667 | — |
| 103.216.197.0/24 | AS33667 | — |
| 107.0.64.0/23 | AS33667 | — |
| 135.132.64.0/19 | AS33667 | — |
| 138.226.112.0/21 | AS33667 | — |
| 138.226.48.0/21 | AS33667 | — |
| 138.226.64.0/20 | AS33667 | — |
| 139.181.26.0/24 | AS33667 | — |
| 140.89.64.0/18 | AS33667 | — |
| 157.240.151.0/24 | AS33667 | — |
| 157.240.152.0/24 | AS33667 | — |
| 161.82.0.0/24 | AS33667 | — |
| 161.82.12.0/24 | AS33667 | — |
| 161.82.44.0/23 | AS33667 | — |
| 162.218.89.0/24 | AS33667 | — |
| 169.128.104.0/22 | AS33667 | — |
| 169.128.228.0/22 | AS33667 | — |
| 169.230.76.0/24 | AS33667 | — |
| 169.230.77.0/24 | AS33667 | — |
| 185.201.41.0/24 | AS33667 | — |
| 185.201.43.0/24 | AS33667 | — |
| 185.22.43.0/24 | AS33667 | — |
| 192.189.161.0/24 | AS33667 | — |
| 192.206.19.0/24 | AS33667 | — |
| 192.70.238.0/24 | AS33667 | — |
| 198.202.219.0/24 | AS33667 | — |
| 2001:559:123::/48 | AS33667 | — |
| 2001:559:13c::/48 | AS33667 | — |
| 2001:559:1b1::/48 | AS33667 | — |
| 2001:559:249::/48 | AS33667 | — |
| 2001:559:2bf::/48 | AS33667 | — |
| 2001:559:2c1::/48 | AS33667 | — |
| 2001:559:32d::/48 | AS33667 | — |
| 2001:559:47c::/48 | AS33667 | — |
| 2001:559:492::/48 | AS33667 | — |
| 2001:559:5a2::/48 | AS33667 | — |
| 2001:559:5de::/48 | AS33667 | — |
| 2001:559:712::/48 | AS33667 | — |
| 2001:559:75a::/48 | AS33667 | — |
| 2001:559:7cb::/48 | AS33667 | — |
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Related lookups and next steps
Frequently asked questions about this ASN page
What does AS33667 represent?
AS33667 is an autonomous system number. The current source associates it with CMCS - Comcast Cable Communications, LLC and the region field an unknown region; those values add network context but do not prove a specific service, physical location, or quality level.
What are peers, upstreams, and prefixes useful for on the AS33667 page?
They help explain the scale, interconnection depth, and route structure of AS33667. Richer peering and upstream data often indicate broader network reach, but they should still be interpreted together with prefixes and related IP landing pages.
What should you do after reviewing AS33667?
Open a concrete IP page to check how the address maps into AS33667, then compare the prefix, source labels, and query time. Verify operator or service claims with the relevant registry or network operator.
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