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Network · ASN lookup

AS33651: Comcast

AS33651 belongs to Comcast and is registered in the United States.

Facts about AS33651

Dataset read 2026-11-01 What the public iptoasn.com dataset held for AS33651 on the day this copy was read. It is refreshed about once a month. IPv4 only

AS number

AS33651

Registered descriptionCMCS

USUnited States
IPv4 addresses The addresses in all 181 of its ranges. The share is that total over the 4,294,967,296 addresses of the whole IPv4 space.
2,267,136
0.053% of the whole IPv4 space
IPv4 ranges
181
Kind of network
Home and business broadband
Hosting network Yes only when the AS number is on our list of hosting and cloud networks. Not on our list says nothing about what kind of network it is.
Not on our list

The 15 largest ranges below hold 56.4% of its addresses Each segment is one of the ranges listed below, drawn at its share of all 2,267,136 addresses of AS33651. The empty part is every other range. 1,277,952 of 2,267,136

Country: United States (US), as the registry holds it. Where the network is registered, which is not always where its customers are. Open AS33651 in the ASN lookup

Largest IPv4 ranges of AS33651

Each bar is the range's address count against the largest one. A prefix such as /12 shows when a range is exactly one aligned CIDR block.

The 15 largest of 181, biggest first

Largest IPv4 ranges of AS33651, with the number of addresses in each
#First address to last addressSize against the largest rangeAddresses
0124.4.0.0 to 24.7.127.255229,376
0276.102.0.0 to 76.103.255.255/15131,072
0376.132.0.0 to 76.133.255.255/15131,072
0424.130.0.0 to 24.130.255.255/1665,536
0567.180.0.0 to 67.180.255.255/1665,536
0667.188.0.0 to 67.188.255.255/1665,536
0769.181.0.0 to 69.181.255.255/1665,536
0871.198.0.0 to 71.198.255.255/1665,536
0971.202.0.0 to 71.202.255.255/1665,536
1076.126.0.0 to 76.126.255.255/1665,536
1198.35.0.0 to 98.35.255.255/1665,536
1298.37.0.0 to 98.37.255.255/1665,536
1398.42.0.0 to 98.42.255.255/1665,536
1498.45.0.0 to 98.45.255.255/1665,536
1598.47.0.0 to 98.47.255.255/1665,536

Using this network with a proxy

It targets that one network, and it is not applied on geo-forced pools. If no exit on the network is available, the request fails instead of falling back to another network. We do not publish which networks are available at a given time.

A request names it with the asn option, written AS33651 or 33651. Every pool takes it: Essential and Premium Residential, and Mobile.

Essential and Premium