AS5650 Frontier Communications of America, Inc.

FRONTIER-FRTR - Frontier Communications of America, Inc. · registered in the United States

IPv4 addresses10,665,9841,328 prefixes · 0.340% of announced IPv4

Rank in United States#20largest network in US by IPv4 space, of 18,338 · 0.78% of US

Rank worldwide#40of 79,396 networks with IPv4

IPv616 x /32 (1,114,110 x /48)34 prefixes

CountryUnited States18,679 ASNs registered there

Open AS5650 in ASN lookup Look up an IP in this network (2.56.32.1) All networks in United States

IPv4 prefixes

First 500 of 1,328 prefixes, in address order.

2.56.32.0/22
2.58.176.0/22
5.182.103.0/24
5.253.187.0/24
9.249.16.0/21
9.249.64.0/21
9.249.76.0/22
9.249.80.0/20
9.249.104.0/22
9.249.112.0/20
16.5.36.0/22
16.5.188.0/22
16.216.28.0/22
16.216.216.0/24
16.217.4.0/22
16.217.100.0/22
16.217.217.0/24
16.217.248.0/22
16.221.48.0/22
16.222.0.0/22
16.222.124.0/22
16.222.248.0/22
16.223.116.0/22
16.223.240.0/22
23.27.224.0/24
23.141.76.0/24
23.159.8.0/24
23.226.217.0/24
23.226.220.0/23
23.230.67.0/24
23.231.27.0/24
23.239.160.0/24
23.239.166.0/23
24.32.72.0/24
24.206.198.0/24
31.133.28.0/22
31.187.92.0/22
31.193.191.0/24
40.27.36.0/22
40.27.96.0/21
40.27.136.0/21
40.27.148.0/22
40.27.152.0/22
40.27.176.0/21
40.27.184.0/22
40.27.200.0/21
40.27.220.0/22
40.27.240.0/22
40.183.202.0/23
40.223.224.0/20
45.33.157.0/24
45.39.52.0/24
45.39.80.0/24
45.39.178.0/24
45.39.239.0/24
45.40.106.0/23
45.42.228.0/22
45.52.0.0/17
45.52.128.0/19
45.52.160.0/20
45.52.176.0/21
45.52.184.0/23
45.52.186.0/23
45.52.188.0/22
45.52.192.0/18
45.53.0.0/16
45.58.245.0/24
45.58.250.0/24
45.58.252.0/22
45.59.18.0/24
45.59.20.0/24
45.80.250.0/23
45.81.160.0/24
45.83.132.0/22
45.83.152.0/22
45.85.130.0/23
45.130.64.0/24
45.134.92.0/22
45.147.62.0/23
45.150.168.0/22
45.151.196.0/22
45.157.72.0/23
46.20.96.0/24
46.20.216.0/21
46.203.160.0/24
46.203.164.0/24
47.136.0.0/14
47.140.0.0/17
47.140.128.0/18
47.140.192.0/21
47.140.200.0/22
47.140.204.0/23
47.140.206.0/23
47.140.208.0/21
47.140.216.0/22
47.140.220.0/22
47.140.224.0/20
47.140.240.0/22
47.140.244.0/23
47.140.246.0/23
47.140.248.0/21
47.141.0.0/16
47.142.0.0/18
47.142.64.0/20
47.142.80.0/22
47.142.84.0/22
47.142.88.0/21
47.142.96.0/19
47.142.128.0/17
47.143.0.0/20
47.143.16.0/20
47.143.32.0/21
47.143.40.0/23
47.143.42.0/23
47.143.44.0/22
47.143.48.0/20
47.143.64.0/19
47.143.96.0/20
47.143.112.0/21
47.143.120.0/22
47.143.124.0/23
47.143.126.0/23
47.143.128.0/18
47.143.192.0/21
47.143.200.0/22
47.143.204.0/22
47.143.208.0/21
47.143.216.0/23
47.143.218.0/23
47.143.220.0/22
47.143.224.0/19
47.144.0.0/12
47.160.0.0/17
47.160.128.0/18
47.160.192.0/18
47.161.0.0/18
47.161.64.0/18
47.161.128.0/19
47.161.160.0/22
47.161.164.0/22
47.161.168.0/21
47.161.176.0/20
47.161.192.0/18
47.162.0.0/15
47.164.0.0/14
47.168.0.0/13
47.176.0.0/17
47.176.128.0/18
47.176.192.0/19
47.176.224.0/20
47.176.240.0/23
47.176.243.0/24
47.176.244.0/22
47.176.248.0/21
47.177.0.0/16
47.178.0.0/17
47.178.128.0/17
47.179.0.0/20
47.179.16.0/23
47.179.18.0/24
47.179.20.0/22
47.179.24.0/21
47.179.32.0/19
47.179.64.0/18
47.179.128.0/17
47.180.0.0/15
47.182.0.0/17
47.182.128.0/22
47.182.132.0/22
47.182.136.0/21
47.182.144.0/20
47.182.160.0/19
47.182.192.0/19
47.182.224.0/23
47.182.226.0/23
47.182.228.0/23
47.182.230.0/23
47.182.232.0/21
47.182.240.0/22
47.182.244.0/23
47.182.246.0/23
47.182.248.0/21
47.183.0.0/18
47.183.64.0/19
47.183.96.0/21
47.183.104.0/22
47.183.108.0/24
47.183.109.0/24
47.183.110.0/23
47.183.112.0/22
47.183.116.0/22
47.183.120.0/21
47.183.128.0/19
47.183.160.0/19
47.183.192.0/18
47.184.0.0/15
47.186.0.0/17
47.186.128.0/18
47.186.192.0/18
47.187.0.0/16
47.188.0.0/17
47.188.128.0/19
47.188.160.0/22
47.188.164.0/22
47.188.168.0/21
47.188.176.0/20
47.188.192.0/19
47.188.224.0/22
47.188.228.0/22
47.188.232.0/21
47.188.240.0/21
47.188.248.0/21
47.189.0.0/19
47.189.32.0/20
47.189.48.0/21
47.189.56.0/22
47.189.60.0/23
47.189.62.0/23
47.189.64.0/20
47.189.80.0/22
47.189.84.0/22
47.189.88.0/21
47.189.96.0/19
47.189.128.0/17
47.190.0.0/17
47.190.128.0/21
47.190.136.0/22
47.190.140.0/22
47.190.144.0/20
47.190.160.0/19
47.190.192.0/18
47.191.0.0/16
47.192.0.0/15
47.194.0.0/16
47.195.0.0/16
47.196.0.0/14
47.200.0.0/13
48.44.0.0/24
48.44.5.0/24
48.44.10.0/23
48.44.15.0/24
48.44.25.0/24
48.44.35.0/24
48.44.45.0/24
48.44.55.0/24
48.44.60.0/22
48.44.70.0/24
48.44.80.0/24
48.44.90.0/23
48.44.100.0/24
48.44.108.0/24
48.44.116.0/24
48.44.120.0/23
48.44.125.0/24
48.44.128.0/22
48.46.64.0/24
48.46.70.0/24
48.46.74.0/23
48.46.80.0/24
48.46.90.0/24
48.46.100.0/24
48.46.110.0/23
48.46.118.0/24
48.46.126.0/24
48.47.236.0/22
48.47.250.0/23
50.2.66.0/23
50.3.91.0/24
50.32.0.0/19
50.32.32.0/20
50.32.48.0/21
50.32.56.0/22
50.32.60.0/24
50.32.62.0/23
50.32.73.0/24
50.32.75.0/24
50.32.76.0/22
50.32.80.0/20
50.32.96.0/19
50.32.128.0/17
50.33.0.0/17
50.33.128.0/22
50.33.132.0/23
50.33.134.0/24
50.33.136.0/21
50.33.144.0/20
50.33.160.0/22
50.33.166.0/23
50.33.168.0/21
50.33.176.0/20
50.33.192.0/18
50.36.0.0/16
50.37.0.0/18
50.38.128.0/22
50.38.132.0/23
50.38.134.0/24
50.38.136.0/21
50.38.144.0/20
50.38.160.0/19
50.38.192.0/18
50.39.0.0/18
50.40.0.0/15
50.42.0.0/16
50.43.128.0/17
50.44.0.0/20
50.44.16.0/21
50.44.24.0/22
50.44.28.0/24
50.44.30.0/23
50.44.32.0/19
50.44.64.0/18
50.44.128.0/17
50.45.0.0/17
50.48.0.0/16
50.49.0.0/17
50.49.128.0/18
50.49.192.0/19
50.49.224.0/20
50.49.240.0/21
50.49.248.0/22
50.49.252.0/23
50.49.255.0/24
50.50.0.0/15
50.52.128.0/17
50.54.0.0/17
50.55.0.0/18
50.55.64.0/18
50.55.128.0/17
50.102.0.0/17
50.102.128.0/18
50.102.192.0/19
50.102.224.0/20
50.102.240.0/21
50.102.248.0/22
50.102.252.0/24
50.102.254.0/23
50.103.0.0/16
50.104.0.0/18
50.104.64.0/19
50.104.96.0/20
50.104.112.0/21
50.104.120.0/22
50.104.125.0/24
50.104.126.0/23
50.104.128.0/19
50.104.160.0/21
50.104.169.0/24
50.104.170.0/23
50.104.172.0/22
50.104.176.0/20
50.104.192.0/18
50.105.0.0/16
50.106.64.0/20
50.106.80.0/22
50.106.85.0/24
50.106.86.0/23
50.106.88.0/21
50.106.96.0/19
50.106.128.0/17
50.107.0.0/20
50.107.16.0/21
50.107.32.0/19
50.107.64.0/18
50.107.128.0/17
50.108.0.0/16
50.109.0.0/17
50.109.128.0/22
50.109.133.0/24
50.109.134.0/23
50.109.136.0/21
50.109.144.0/20
50.109.160.0/23
50.109.162.0/24
50.109.164.0/22
50.109.168.0/21
50.109.176.0/20
50.109.192.0/19
50.110.0.0/17
50.110.128.0/22
50.110.132.0/23
50.110.135.0/24
50.110.136.0/21
50.110.144.0/20
50.110.160.0/19
50.110.192.0/18
50.111.0.0/16
50.120.0.0/18
50.120.96.0/19
50.120.128.0/18
50.120.192.0/23
50.120.196.0/23
50.120.198.0/24
50.120.200.0/21
50.120.209.0/24
50.120.210.0/23
50.120.212.0/22
50.120.216.0/21
50.120.224.0/19
50.121.0.0/23
50.121.3.0/24
50.121.4.0/22
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50.121.16.0/20
50.121.32.0/19
50.121.64.0/23
50.121.68.0/22
50.121.77.0/24
50.121.78.0/24
50.121.80.0/20
50.121.96.0/19
50.121.128.0/20
50.121.144.0/22
50.121.148.0/23
50.121.150.0/24
50.121.152.0/21
50.121.160.0/19
50.121.192.0/19
50.121.224.0/20
50.121.244.0/22
50.121.248.0/21
50.122.0.0/16
50.123.0.0/18
50.123.128.0/17
50.124.0.0/18
50.124.64.0/20
50.124.80.0/21
50.124.88.0/22
50.124.92.0/24
50.124.94.0/23
50.124.96.0/19
50.124.128.0/18
50.124.192.0/21
50.124.200.0/23
50.124.202.0/24
50.124.203.0/24
50.124.204.0/22
50.124.208.0/20
50.124.224.0/19
50.126.0.0/18
50.126.128.0/17
50.127.0.0/18
50.127.64.0/19
50.127.96.0/20
50.127.112.0/21
50.127.120.0/22
50.127.124.0/23
50.127.126.0/24
50.127.128.0/17
51.146.176.0/22
51.146.192.0/21
51.194.16.0/20
51.194.180.0/24
51.194.223.0/24
51.241.110.0/24
51.241.114.0/24
51.241.148.0/24
51.241.170.0/24
51.241.202.0/24
51.241.244.0/24
64.7.244.0/22
64.43.104.0/22
64.43.112.0/22
64.43.124.0/22
64.72.200.0/22
64.79.248.0/24
64.81.177.0/24
64.84.30.0/23
64.84.52.0/22
64.84.88.0/21
64.93.84.0/22
64.112.8.0/22
64.113.12.0/22
64.187.124.0/23
64.204.72.0/21
64.205.16.0/20
64.205.36.0/22
64.205.44.0/22
64.205.48.0/22
64.205.56.0/22
64.205.152.0/22
64.205.160.0/22
64.205.168.0/22
65.37.0.0/17
65.73.0.0/16
65.86.40.0/22
65.86.48.0/22
65.86.146.0/23
65.87.28.0/22
66.92.84.0/22
66.92.88.0/22
66.92.100.0/22
66.92.108.0/22
66.92.116.0/22
66.92.124.0/22
66.93.20.0/22
66.93.28.0/24
66.93.124.0/22
66.93.146.0/24
66.93.156.0/22
66.93.192.0/22

IPv6 prefixes

All 34 prefixes.

2001:1960::/44
2001:1960:10::/47
2001:1960:13::/48
2001:1960:14::/46
2001:1960:18::/45
2001:1960:20::/43
2001:1960:40::/42
2001:1960:80::/41
2001:1960:100::/40
2001:1960:200::/39
2001:1960:400::/38
2001:1960:800::/37
2001:1960:1000::/36
2001:1960:2000::/37
2001:1960:2800::/39
2001:1960:2a00::/47
2001:1960:2a03::/48
2001:1960:2a04::/46
2001:1960:2a08::/45
2001:1960:2a10::/44
2001:1960:2a20::/43
2001:1960:2a40::/42
2001:1960:2a80::/41
2001:1960:2b00::/40
2001:1960:2c00::/38
2001:1960:3000::/36
2001:1960:4000::/34
2001:1960:8000::/33
2606:4c80::/32
2606:4d80::/32
2606:4e80::/32
2607:d40::/32
2a07:4584::/30
2a07:a900::/29

Other ASNs named Frontier Communications of America, Inc.

4 other networks use the same organisation name; together with AS5650 they announce 10,847,488 IPv4 addresses.

ASNNameIPv4 addresses

AS3593FRONTIER-EPIX - Frontier Communications of America, Inc. US175,616

AS26127FRONTIERLABRESEARCH - Frontier Communications of America, Inc. US2,816

AS32587NCH-FTWDC-01 - Frontier Communications of America, Inc. US2,048

AS7011FRONTIER-AND-CITIZENS - Frontier Communications of America, Inc. US1,024

Similar-sized networks in United States

ASNNameIPv4 addresses

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AS7377#19 UCSD - University of California, San Diego12,126,474

AS7029#21 WINDSTREAM - Windstream Communications LLC10,421,504

AS56#22 DNIC-AS-00056 - United States Department of Defense (DoD)7,785,728

AS1540#23 DNIC-ASBLK-01534-01546 - Headquarters, USAISC7,430,144

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources