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Network · ASN lookup

AS19901: Brightspeed

AS19901 belongs to Brightspeed and is registered in the United States.

Facts about AS19901

Dataset read 2026-11-01 What the public iptoasn.com dataset held for AS19901 on the day this copy was read. It is refreshed about once a month. IPv4 only

AS number

AS19901

Registered descriptionBRSPD-PUBLIC

USUnited States
IPv4 addresses The addresses in all 312 of its ranges. The share is that total over the 4,294,967,296 addresses of the whole IPv4 space.
3,011,840
0.07% of the whole IPv4 space
IPv4 ranges
312
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 37.6% of its addresses Each segment is one of the ranges listed below, drawn at its share of all 3,011,840 addresses of AS19901. The empty part is every other range. 1,132,544 of 3,011,840

Country: United States (US), as the registry holds it. Where the network is registered, which is not always where its customers are. Open AS19901 in the ASN lookup

Largest IPv4 ranges of AS19901

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 312, biggest first

Largest IPv4 ranges of AS19901, with the number of addresses in each
#First address to last addressSize against the largest rangeAddresses
019.138.0.0 to 9.139.255.255/15131,072
029.244.0.0 to 9.245.255.255/15131,072
03207.49.64.0 to 207.50.99.25574,752
0467.6.0.0 to 67.7.31.25573,728
0575.170.0.0 to 75.171.3.25566,560
0665.12.0.0 to 65.12.255.255/1665,536
0771.210.0.0 to 71.210.255.255/1665,536
0871.213.0.0 to 71.213.255.255/1665,536
0971.217.0.0 to 71.217.255.255/1665,536
1071.219.0.0 to 71.219.255.255/1665,536
1171.221.0.0 to 71.221.255.255/1665,536
1275.165.0.0 to 75.165.255.255/1665,536
1375.173.0.0 to 75.173.255.255/1665,536
1497.114.0.0 to 97.114.255.255/1665,536
15143.103.0.0 to 143.103.255.255/1665,536

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 We do not publish which networks are available at a given time.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 AS19901 or 19901. Every pool takes it: Essential and Premium Residential, and Mobile.

Essential and Premium