Lookup IP Address: 172.0.0.0 - 172.255.255.255

The below is a subset of approximately 16 million IP addresses from 172.0.0.0 [UNITED STATES, arin, Monday, August 20, 2012, {172.0.0.0 - 172.15.255.255}] to 172.255.255.255 [UNITED STATES, arin, Wednesday, March 13, 2013, {172.255.0.0 - 172.255.255.255}].

Find IP Address Lookup

The below list from 172.0.0.0 [UNITED STATES, arin, Monday, August 20, 2012, {172.0.0.0 - 172.15.255.255}] to 172.255.255.255 [UNITED STATES, arin, Wednesday, March 13, 2013, {172.255.0.0 - 172.255.255.255}] will allow you to perform a "find IP address lookup" on the contained addresses. (Start country: UNITED STATES). (End country: UNITED STATES).

IP Address Range

Address at Start of Range

Address at End of Range

UNITED STATES, arin, Monday, August 20, 2012, (172.0.0.0 - 172.15.255.255)
UNITED STATES, arin, Monday, August 20, 2012, (172.0.0.0 - 172.15.255.255)
Who Is Summary Data
  • 172.16.0.0 - 172.31.0.0, Internal Network
  • 172.16.0.0 - 172.31.0.0, Internal Network
  • 172.16.0.0 - 172.31.0.0, Internal Network
  • 172.16.0.0 - 172.31.0.0, Internal Network
  • 172.16.0.0 - 172.31.0.0, Internal Network
  • 172.16.0.0 - 172.31.0.0, Internal Network
  • 172.16.0.0 - 172.31.0.0, Internal Network
  • 172.16.0.0 - 172.31.0.0, Internal Network
  • 172.16.0.0 - 172.31.0.0, Internal Network
  • 172.16.0.0 - 172.31.0.0, Internal Network
  • 172.16.0.0 - 172.31.0.0, Internal Network
  • 172.16.0.0 - 172.31.0.0, Internal Network
  • 172.16.0.0 - 172.31.0.0, Internal Network
  • 172.16.0.0 - 172.31.0.0, Internal Network
UNITED STATES, arin, Tuesday, September 18, 2012, (172.32.0.0 - 172.63.255.255)
UNITED STATES, arin, Tuesday, September 18, 2012, (172.32.0.0 - 172.63.255.255)
UNITED STATES, arin, Friday, March 24, 2000, (172.128.0.0 - 172.191.255.255)
UNITED STATES, arin, Friday, March 24, 2000, (172.128.0.0 - 172.191.255.255)
UNITED STATES, arin, Wednesday, February 13, 2002, (172.192.0.0 - 172.216.255.255)
UNITED STATES, arin, Wednesday, February 13, 2002, (172.192.0.0 - 172.216.255.255)
UNITED STATES, arin, Monday, April 16, 2012, (172.217.0.0 - 172.217.255.255)
UNITED STATES, arin, Monday, April 16, 2012, (172.217.0.0 - 172.217.255.255)
CANADA, arin, Monday, April 16, 2012, (172.218.0.0 - 172.219.255.255)
CANADA, arin, Monday, April 16, 2012, (172.218.0.0 - 172.219.255.255)
UNITED STATES, arin, Friday, June 22, 2012, (172.220.0.0 - 172.223.255.255)
UNITED STATES, arin, Friday, June 22, 2012, (172.220.0.0 - 172.223.255.255)
UNITED STATES, arin, Friday, March 15, 2013, (172.224.0.0 - 172.239.255.255)
UNITED STATES, arin, Friday, March 15, 2013, (172.224.0.0 - 172.239.255.255)
UNITED STATES, arin, Wednesday, March 13, 2013, (172.248.0.0 - 172.251.255.255)
UNITED STATES, arin, Wednesday, March 13, 2013, (172.248.0.0 - 172.251.255.255)
UNITED STATES, arin, Wednesday, March 13, 2013, (172.255.0.0 - 172.255.255.255)
UNITED STATES, arin, Wednesday, March 13, 2013, (172.255.0.0 - 172.255.255.255)