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Network · ASN lookup

AS16591: Google Fiber

AS16591 belongs to Google Fiber and is registered in the United States.

Facts about AS16591

Dataset read 2026-11-01 What the public iptoasn.com dataset held for AS16591 on the day this copy was read. It is refreshed about once a month. IPv4 only

AS number

AS16591

Registered descriptionGOOGLE-FIBER

USUnited States
IPv4 addresses The addresses in all 18 of its ranges. The share is that total over the 4,294,967,296 addresses of the whole IPv4 space.
2,244,608
0.052% of the whole IPv4 space
IPv4 ranges
18
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 99.3% of its addresses Each segment is one of the ranges listed below, drawn at its share of all 2,244,608 addresses of AS16591. The empty part is every other range. 2,228,224 of 2,244,608

Country: United States (US), as the registry holds it. Where the network is registered, which is not always where its customers are. Open AS16591 in the ASN lookup

Largest IPv4 ranges of AS16591

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 18, biggest first

Largest IPv4 ranges of AS16591, with the number of addresses in each
#First address to last addressSize against the largest rangeAddresses
01136.36.17.0 to 136.46.175.255696,064
02136.48.112.0 to 136.55.127.255462,848
03136.32.0.0 to 136.36.16.255266,496
04136.55.128.0 to 136.59.47.255241,664
05136.60.112.0 to 136.63.255.255233,472
06136.59.48.0 to 136.60.111.25581,920
07136.47.112.0 to 136.48.111.25565,536
0823.255.128.0 to 23.255.255.255/1732,768
0999.198.128.0 to 99.198.255.255/1732,768
10107.188.128.0 to 107.188.255.255/1732,768
11136.46.176.0 to 136.47.47.25532,768
1223.228.128.0 to 23.228.191.255/1816,384
1345.56.0.0 to 45.56.63.255/1816,384
14136.47.48.0 to 136.47.79.2558,192
15136.47.80.0 to 136.47.111.2558,192

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 We do not publish which networks are available at a given time.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 AS16591 or 16591. Every pool takes it: Essential and Premium Residential, and Mobile.

Essential and Premium