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United States

Allocation List

This is a list of IP addresses allocated to United States.

In most cases, "Merged CIDR" is more useful than this list.

If you want to use it access control, use "Download."

There are 1,615,186,016 IP addresses allocated to United States. This is 37.60648% of the total address space, and 43.62713% excluding reserved space.

401-600 of 66269 rows
CIDRIP AddressAlloc DateRegistry
16.224.0.0/1216.224.0.0 - 16.239.255.255May 18, 1989ARIN
16.240.0.0/1516.240.0.0 - 16.241.255.255May 18, 1989ARIN
16.242.0.0/1616.242.0.0 - 16.242.255.255May 18, 1989ARIN
16.243.0.0/1616.243.0.0 - 16.243.255.255Jul 24, 2018ARIN
16.244.0.0/1616.244.0.0 - 16.244.255.255Jul 24, 2018ARIN
16.245.0.0/1616.245.0.0 - 16.245.255.255May 18, 1989ARIN
16.246.0.0/1516.246.0.0 - 16.247.255.255May 18, 1989ARIN
16.248.0.0/1316.248.0.0 - 16.255.255.255May 18, 1989ARIN
17.0.0.0/817.0.0.0 - 17.255.255.255Apr 16, 1990ARIN
18.0.0.0/1118.0.0.0 - 18.31.255.255Jan 01, 1994ARIN
18.32.0.0/1118.32.0.0 - 18.63.255.255Oct 07, 2019ARIN
18.64.0.0/1018.64.0.0 - 18.127.255.255Oct 07, 2019ARIN
18.128.0.0/918.128.0.0 - 18.255.255.255Oct 07, 2019ARIN
19.0.0.0/819.0.0.0 - 19.255.255.255Jun 15, 1988ARIN
20.0.0.0/1120.0.0.0 - 20.31.255.255Oct 18, 2017ARIN
20.32.0.0/1620.32.0.0 - 20.32.255.255Sep 04, 1989ARIN
20.33.0.0/1620.33.0.0 - 20.33.255.255Oct 18, 2017ARIN
20.34.0.0/1520.34.0.0 - 20.35.255.255Oct 18, 2017ARIN
20.36.0.0/1420.36.0.0 - 20.39.255.255Oct 18, 2017ARIN
20.40.0.0/1320.40.0.0 - 20.47.255.255Oct 18, 2017ARIN
20.48.0.0/1220.48.0.0 - 20.63.255.255Oct 18, 2017ARIN
20.64.0.0/1020.64.0.0 - 20.127.255.255Oct 18, 2017ARIN
20.128.0.0/1620.128.0.0 - 20.128.255.255Oct 18, 2017ARIN
20.129.0.0/1620.129.0.0 - 20.129.255.255Jul 11, 2022ARIN
20.130.0.0/1620.130.0.0 - 20.130.255.255Oct 18, 2017ARIN
20.131.0.0/1620.131.0.0 - 20.131.255.255Jul 11, 2022ARIN
20.132.0.0/1520.132.0.0 - 20.133.255.255Sep 04, 1989ARIN
20.134.0.0/1620.134.0.0 - 20.134.255.255Sep 04, 1989ARIN
20.135.0.0/1620.135.0.0 - 20.135.255.255Oct 18, 2017ARIN
20.136.0.0/1620.136.0.0 - 20.136.255.255Oct 18, 2017ARIN
20.137.0.0/1620.137.0.0 - 20.137.255.255Sep 04, 1989ARIN
20.138.0.0/1520.138.0.0 - 20.139.255.255Sep 04, 1989ARIN
20.140.0.0/1520.140.0.0 - 20.141.255.255Oct 18, 2017ARIN
20.142.0.0/1620.142.0.0 - 20.142.255.255Jul 11, 2022ARIN
20.143.0.0/1620.143.0.0 - 20.143.255.255Oct 18, 2017ARIN
20.144.0.0/1420.144.0.0 - 20.147.255.255Oct 18, 2017ARIN
20.148.0.0/1520.148.0.0 - 20.149.255.255Sep 04, 1989ARIN
20.150.0.0/1520.150.0.0 - 20.151.255.255Oct 18, 2017ARIN
20.152.0.0/1520.152.0.0 - 20.153.255.255Oct 18, 2017ARIN
20.154.0.0/1520.154.0.0 - 20.155.255.255Sep 04, 1989ARIN
20.156.0.0/1620.156.0.0 - 20.156.255.255Sep 04, 1989ARIN
20.157.0.0/1620.157.0.0 - 20.157.255.255Oct 18, 2017ARIN
20.158.0.0/1520.158.0.0 - 20.159.255.255Oct 18, 2017ARIN
20.160.0.0/1220.160.0.0 - 20.175.255.255Feb 22, 2017ARIN
20.176.0.0/1420.176.0.0 - 20.179.255.255Oct 18, 2017ARIN
20.180.0.0/1420.180.0.0 - 20.183.255.255Feb 22, 2017ARIN
20.184.0.0/1320.184.0.0 - 20.191.255.255Feb 22, 2017ARIN
20.192.0.0/1020.192.0.0 - 20.255.255.255Oct 18, 2017ARIN
21.0.0.0/821.0.0.0 - 21.255.255.255Jul 01, 1991ARIN
22.0.0.0/822.0.0.0 - 22.255.255.255Jun 26, 1989ARIN
23.0.0.0/1223.0.0.0 - 23.15.255.255Dec 17, 2010ARIN
23.18.0.0/1623.18.0.0 - 23.18.255.255Sep 12, 2011ARIN
23.19.0.0/1923.19.0.0 - 23.19.31.255Apr 25, 2011ARIN
23.19.32.0/2023.19.32.0 - 23.19.47.255Apr 25, 2011ARIN
23.19.52.0/2223.19.52.0 - 23.19.55.255Apr 25, 2011ARIN
23.19.64.0/1823.19.64.0 - 23.19.127.255Apr 25, 2011ARIN
23.19.128.0/1723.19.128.0 - 23.19.255.255Apr 25, 2011ARIN
23.20.0.0/1423.20.0.0 - 23.23.255.255Sep 19, 2011ARIN
23.24.0.0/1523.24.0.0 - 23.25.255.255Jan 13, 2012ARIN
23.26.0.0/1623.26.0.0 - 23.26.255.255Feb 03, 2012ARIN
23.27.0.0/1623.27.0.0 - 23.27.255.255Feb 13, 2012ARIN
23.28.0.0/1823.28.0.0 - 23.28.63.255Sep 27, 2023ARIN
23.28.64.0/1923.28.64.0 - 23.28.95.255Sep 27, 2023ARIN
23.28.96.0/1923.28.96.0 - 23.28.127.255Feb 21, 2012ARIN
23.28.128.0/1723.28.128.0 - 23.28.255.255Feb 21, 2012ARIN
23.29.0.0/2023.29.0.0 - 23.29.15.255Mar 07, 2012ARIN
23.29.16.0/2023.29.16.0 - 23.29.31.255Mar 07, 2012ARIN
23.29.32.0/2023.29.32.0 - 23.29.47.255Mar 09, 2012ARIN
23.29.48.0/2023.29.48.0 - 23.29.63.255Mar 15, 2012ARIN
23.29.64.0/2023.29.64.0 - 23.29.79.255Mar 15, 2012ARIN
23.29.80.0/2023.29.80.0 - 23.29.95.255Mar 15, 2012ARIN
23.29.96.0/2023.29.96.0 - 23.29.111.255Mar 16, 2012ARIN
23.29.112.0/2023.29.112.0 - 23.29.127.255Mar 16, 2012ARIN
23.29.128.0/1923.29.128.0 - 23.29.159.255Mar 16, 2012ARIN
23.29.160.0/1923.29.160.0 - 23.29.191.255Mar 26, 2012ARIN
23.29.224.0/1923.29.224.0 - 23.29.255.255Apr 10, 2012ARIN
23.30.0.0/1523.30.0.0 - 23.31.255.255Apr 30, 2012ARIN
23.32.0.0/1123.32.0.0 - 23.63.255.255May 16, 2011ARIN
23.64.0.0/1423.64.0.0 - 23.67.255.255May 16, 2011ARIN
23.68.0.0/1423.68.0.0 - 23.71.255.255Apr 30, 2012ARIN
23.72.0.0/1323.72.0.0 - 23.79.255.255Jan 25, 2013ARIN
23.80.0.0/1623.80.0.0 - 23.80.255.255May 06, 2013ARIN
23.81.0.0/1923.81.0.0 - 23.81.31.255May 06, 2013ARIN
23.81.32.0/2123.81.32.0 - 23.81.39.255May 06, 2013ARIN
23.81.48.0/2023.81.48.0 - 23.81.63.255May 06, 2013ARIN
23.81.64.0/1823.81.64.0 - 23.81.127.255May 06, 2013ARIN
23.81.128.0/1723.81.128.0 - 23.81.255.255May 06, 2013ARIN
23.82.0.0/1623.82.0.0 - 23.82.255.255May 06, 2013ARIN
23.83.0.0/1823.83.0.0 - 23.83.63.255May 06, 2013ARIN
23.83.72.0/2123.83.72.0 - 23.83.79.255May 06, 2013ARIN
23.83.80.0/2023.83.80.0 - 23.83.95.255May 06, 2013ARIN
23.83.96.0/2023.83.96.0 - 23.83.111.255May 06, 2013ARIN
23.83.128.0/1823.83.128.0 - 23.83.191.255May 06, 2013ARIN
23.83.192.0/2023.83.192.0 - 23.83.207.255May 06, 2013ARIN
23.84.0.0/1423.84.0.0 - 23.87.255.255May 07, 2013ARIN
23.88.128.0/1923.88.128.0 - 23.88.159.255Mar 16, 2021ARIN
23.88.160.0/2023.88.160.0 - 23.88.175.255Mar 16, 2021ARIN
23.88.176.0/2023.88.176.0 - 23.88.191.255Mar 17, 2021ARIN
23.88.224.0/1923.88.224.0 - 23.88.255.255Apr 14, 2021ARIN
23.89.0.0/1623.89.0.0 - 23.89.255.255Mar 17, 2021ARIN
23.90.0.0/1823.90.0.0 - 23.90.63.255Aug 06, 2013ARIN
23.90.69.0/2423.90.69.0 - 23.90.69.255Aug 07, 2013ARIN
23.90.70.0/2323.90.70.0 - 23.90.71.255Aug 07, 2013ARIN
23.90.72.0/2423.90.72.0 - 23.90.72.255Aug 07, 2013ARIN
23.90.73.0/2423.90.73.0 - 23.90.73.255Dec 20, 2021ARIN
23.90.74.0/2323.90.74.0 - 23.90.75.255Aug 07, 2013ARIN
23.90.76.0/2223.90.76.0 - 23.90.79.255Aug 07, 2013ARIN
23.90.80.0/2123.90.80.0 - 23.90.87.255Aug 07, 2013ARIN
23.90.88.0/2223.90.88.0 - 23.90.91.255Jul 19, 2019ARIN
23.90.92.0/2223.90.92.0 - 23.90.95.255Jul 19, 2019ARIN
23.90.96.0/1923.90.96.0 - 23.90.127.255Oct 28, 2019ARIN
23.90.128.0/1823.90.128.0 - 23.90.191.255Aug 16, 2013RIPE NCC
23.91.0.0/1923.91.0.0 - 23.91.31.255Dec 06, 2023ARIN
23.91.32.0/1923.91.32.0 - 23.91.63.255Aug 20, 2013ARIN
23.91.64.0/2023.91.64.0 - 23.91.79.255Aug 29, 2013ARIN
23.91.96.0/2023.91.96.0 - 23.91.111.255Sep 05, 2013ARIN
23.91.112.0/2023.91.112.0 - 23.91.127.255Sep 09, 2013ARIN
23.91.192.0/1923.91.192.0 - 23.91.223.255Dec 28, 2017ARIN
23.92.0.0/2023.92.0.0 - 23.92.15.255Aug 12, 2013ARIN
23.92.16.0/2023.92.16.0 - 23.92.31.255Aug 13, 2013ARIN
23.92.32.0/2023.92.32.0 - 23.92.47.255Aug 15, 2013ARIN
23.92.48.0/2123.92.48.0 - 23.92.55.255Aug 16, 2013ARIN
23.92.56.0/2223.92.56.0 - 23.92.59.255Dec 29, 2020ARIN
23.92.60.0/2223.92.60.0 - 23.92.63.255Aug 16, 2013ARIN
23.92.64.0/2023.92.64.0 - 23.92.79.255Aug 16, 2013ARIN
23.92.80.0/2023.92.80.0 - 23.92.95.255Aug 20, 2013ARIN
23.92.96.0/2023.92.96.0 - 23.92.111.255Aug 20, 2013ARIN
23.92.160.0/2023.92.160.0 - 23.92.175.255Aug 23, 2013ARIN
23.92.176.0/2223.92.176.0 - 23.92.179.255Aug 26, 2013ARIN
23.92.180.0/2223.92.180.0 - 23.92.183.255Aug 26, 2013ARIN
23.92.184.0/2223.92.184.0 - 23.92.187.255Aug 26, 2013ARIN
23.92.188.0/2323.92.188.0 - 23.92.189.255Aug 26, 2013ARIN
23.92.190.0/2323.92.190.0 - 23.92.191.255Aug 26, 2013ARIN
23.92.192.0/2023.92.192.0 - 23.92.207.255Aug 28, 2013ARIN
23.92.208.0/2023.92.208.0 - 23.92.223.255Jan 02, 2014ARIN
23.92.224.0/1923.92.224.0 - 23.92.255.255Nov 12, 2013ARIN
23.93.0.0/1623.93.0.0 - 23.93.255.255Aug 22, 2013ARIN
23.94.0.0/1523.94.0.0 - 23.95.255.255Aug 16, 2013ARIN
23.96.0.0/1323.96.0.0 - 23.103.255.255Jun 18, 2013ARIN
23.104.0.0/1623.104.0.0 - 23.104.255.255Jul 24, 2013ARIN
23.105.0.0/1723.105.0.0 - 23.105.127.255Jul 24, 2013ARIN
23.105.128.0/1823.105.128.0 - 23.105.191.255Jul 24, 2013ARIN
23.106.0.0/1923.106.0.0 - 23.106.31.255Jul 24, 2013ARIN
23.106.40.0/2123.106.40.0 - 23.106.47.255Jul 24, 2013ARIN
23.106.64.0/1923.106.64.0 - 23.106.95.255Jul 24, 2013ARIN
23.106.96.0/2123.106.96.0 - 23.106.103.255Jul 24, 2013ARIN
23.106.160.0/1923.106.160.0 - 23.106.191.255Jul 24, 2013ARIN
23.106.192.0/1923.106.192.0 - 23.106.223.255Jul 24, 2013ARIN
23.107.0.0/1623.107.0.0 - 23.107.255.255Jul 24, 2013ARIN
23.108.0.0/1823.108.0.0 - 23.108.63.255Jul 24, 2013ARIN
23.108.64.0/1923.108.64.0 - 23.108.95.255Jul 24, 2013ARIN
23.108.104.0/2123.108.104.0 - 23.108.111.255Jul 24, 2013ARIN
23.108.112.0/2023.108.112.0 - 23.108.127.255Jul 24, 2013ARIN
23.108.128.0/1823.108.128.0 - 23.108.191.255Jul 24, 2013ARIN
23.108.192.0/2023.108.192.0 - 23.108.207.255Jul 24, 2013ARIN
23.108.224.0/1923.108.224.0 - 23.108.255.255Jul 24, 2013ARIN
23.110.0.0/1623.110.0.0 - 23.110.255.255Jul 24, 2013ARIN
23.111.8.0/2223.111.8.0 - 23.111.11.255Jul 24, 2013ARIN
23.111.128.0/1823.111.128.0 - 23.111.191.255Nov 13, 2015ARIN
23.111.248.0/2123.111.248.0 - 23.111.255.255Jul 24, 2013ARIN
23.112.0.0/1223.112.0.0 - 23.127.255.255Aug 09, 2013ARIN
23.128.32.0/2423.128.32.0 - 23.128.32.255Apr 27, 2018ARIN
23.128.40.0/2423.128.40.0 - 23.128.40.255Nov 05, 2021ARIN
23.128.56.0/2423.128.56.0 - 23.128.56.255Nov 09, 2021ARIN
23.128.64.0/2323.128.64.0 - 23.128.65.255Jul 14, 2017ARIN
23.128.88.0/2423.128.88.0 - 23.128.88.255Nov 10, 2021ARIN
23.128.96.0/2423.128.96.0 - 23.128.96.255Apr 27, 2018ARIN
23.128.97.0/2423.128.97.0 - 23.128.97.255Nov 15, 2019ARIN
23.128.98.0/2423.128.98.0 - 23.128.98.255Nov 23, 2022ARIN
23.128.104.0/2423.128.104.0 - 23.128.104.255Nov 15, 2021ARIN
23.128.105.0/2423.128.105.0 - 23.128.105.255May 24, 2022ARIN
23.128.112.0/2423.128.112.0 - 23.128.112.255Mar 18, 2019ARIN
23.128.120.0/2323.128.120.0 - 23.128.121.255Nov 15, 2021ARIN
23.128.122.0/2423.128.122.0 - 23.128.122.255Nov 15, 2021ARIN
23.128.128.0/2323.128.128.0 - 23.128.129.255Dec 12, 2016ARIN
23.128.136.0/2423.128.136.0 - 23.128.136.255Nov 16, 2021ARIN
23.128.144.0/2423.128.144.0 - 23.128.144.255Mar 20, 2019ARIN
23.128.145.0/2423.128.145.0 - 23.128.145.255Sep 27, 2019ARIN
23.128.146.0/2423.128.146.0 - 23.128.146.255Apr 07, 2020ARIN
23.128.147.0/2423.128.147.0 - 23.128.147.255Oct 16, 2020ARIN
23.128.176.0/2423.128.176.0 - 23.128.176.255Mar 20, 2019ARIN
23.128.192.0/2423.128.192.0 - 23.128.192.255Jul 14, 2017ARIN
23.128.208.0/2423.128.208.0 - 23.128.208.255Mar 20, 2019ARIN
23.128.216.0/2423.128.216.0 - 23.128.216.255Nov 23, 2021ARIN
23.128.240.0/2423.128.240.0 - 23.128.240.255Mar 20, 2019ARIN
23.128.248.0/2423.128.248.0 - 23.128.248.255Dec 01, 2021ARIN
23.129.0.0/2423.129.0.0 - 23.129.0.255May 13, 2016ARIN
23.129.8.0/2423.129.8.0 - 23.129.8.255Dec 01, 2021ARIN
23.129.24.0/2423.129.24.0 - 23.129.24.255Dec 01, 2021ARIN
23.129.48.0/2423.129.48.0 - 23.129.48.255Mar 21, 2019ARIN
23.129.49.0/2423.129.49.0 - 23.129.49.255Jun 25, 2021ARIN
23.129.64.0/2423.129.64.0 - 23.129.64.255Jul 19, 2017ARIN
23.129.80.0/2423.129.80.0 - 23.129.80.255Mar 28, 2019ARIN
23.129.82.0/2423.129.82.0 - 23.129.82.255Dec 09, 2021ARIN
23.129.88.0/2423.129.88.0 - 23.129.88.255Dec 10, 2021ARIN
23.129.96.0/2423.129.96.0 - 23.129.96.255May 10, 2018ARIN
23.129.104.0/2423.129.104.0 - 23.129.104.255Dec 10, 2021ARIN
23.129.120.0/2423.129.120.0 - 23.129.120.255Dec 13, 2021ARIN
23.129.128.0/2423.129.128.0 - 23.129.128.255Dec 21, 2016ARIN
23.129.144.0/2423.129.144.0 - 23.129.144.255Mar 28, 2019ARIN
Merged CIDR

This is a consolidated list of contiguous allocation blocks.

1-200 of 24674 rows
CIDR
2.56.8.0/23
2.56.11.0/24
2.56.32.0/22
2.56.164.0/22
2.57.28.0/22
2.57.68.0/22
2.57.76.0/22
2.57.164.0/22
2.57.232.0/22
2.57.248.0/22
2.58.176.0/22
2.58.252.0/22
3.0.0.0/8
4.0.0.0/8
5.8.251.0/24
5.10.232.0/21
5.22.155.0/24
5.35.192.0/21
5.42.160.0/19
5.42.203.0/24
5.44.255.0/24
5.60.0.0/16
5.62.152.0/21
5.63.144.0/21
5.100.152.0/21
5.101.96.0/20
5.104.64.0/21
5.104.72.0/22
5.145.180.0/22
5.149.120.0/21
5.150.156.0/22
5.154.240.0/24
5.174.0.0/16
5.180.76.0/22
5.181.180.0/22
5.182.48.0/22
5.182.100.0/22
5.182.120.0/22
5.182.184.0/22
5.182.192.0/21
5.183.76.0/22
5.183.88.0/22
5.183.100.0/22
5.183.240.0/22
5.252.164.0/22
5.253.84.0/22
5.253.184.0/22
6.0.0.0/8
7.0.0.0/8
8.0.0.0/9
8.192.0.0/12
8.224.0.0/11
9.0.0.0/13
9.8.0.0/16
9.9.0.0/21
9.9.8.0/24
9.9.10.0/23
9.9.12.0/22
9.9.16.0/20
9.9.32.0/19
9.9.64.0/18
9.9.128.0/17
9.10.0.0/15
9.12.0.0/14
9.16.0.0/12
9.32.0.0/11
9.64.0.0/10
9.128.0.0/13
9.136.0.0/14
9.140.0.0/16
9.142.0.0/15
9.144.0.0/16
9.147.0.0/16
9.148.0.0/14
9.152.0.0/13
9.161.0.0/16
9.162.0.0/16
9.164.0.0/14
9.168.0.0/16
9.170.0.0/15
9.172.0.0/14
9.176.0.0/12
9.192.0.0/13
9.200.0.0/14
9.204.0.0/16
9.206.0.0/15
9.208.0.0/13
9.216.0.0/14
9.220.0.0/15
9.222.0.0/16
9.224.0.0/13
9.232.0.0/15
9.236.0.0/14
9.240.0.0/12
11.0.0.0/8
12.0.0.0/8
13.0.0.0/8
14.1.64.0/19
14.102.172.0/22
14.102.224.0/20
15.0.0.0/9
15.128.0.0/10
15.192.0.0/11
15.224.0.0/13
15.232.0.0/15
15.234.0.0/16
15.236.0.0/14
15.240.0.0/12
16.0.0.0/8
17.0.0.0/8
18.0.0.0/8
19.0.0.0/8
20.0.0.0/8
21.0.0.0/8
22.0.0.0/8
23.0.0.0/12
23.18.0.0/16
23.19.0.0/19
23.19.32.0/20
23.19.52.0/22
23.19.64.0/18
23.19.128.0/17
23.20.0.0/14
23.24.0.0/14
23.28.0.0/16
23.29.0.0/17
23.29.128.0/18
23.29.224.0/19
23.30.0.0/15
23.32.0.0/11
23.64.0.0/12
23.80.0.0/16
23.81.0.0/19
23.81.32.0/21
23.81.48.0/20
23.81.64.0/18
23.81.128.0/17
23.82.0.0/16
23.83.0.0/18
23.83.72.0/21
23.83.80.0/20
23.83.96.0/20
23.83.128.0/18
23.83.192.0/20
23.84.0.0/14
23.88.128.0/18
23.88.224.0/19
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23.90.69.0/24
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23.90.96.0/19
23.90.128.0/18
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23.91.64.0/20
23.91.96.0/19
23.91.192.0/19
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23.92.96.0/20
23.92.160.0/19
23.92.192.0/18
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23.106.96.0/21
23.106.160.0/19
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23.108.112.0/20
23.108.128.0/18
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23.111.8.0/22
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23.128.98.0/24
23.128.104.0/23
23.128.112.0/24
23.128.120.0/23
23.128.122.0/24