Lookup IP Address: 23.0.0.0 - 23.255.255.255

The below is a subset of approximately 16 million IP addresses from 23.0.0.0 [UNITED STATES, arin, Friday, December 17, 2010, {23.0.0.0 - 23.15.255.255}] to 23.255.255.255.

Find IP Address Lookup

The below list from 23.0.0.0 [UNITED STATES, arin, Friday, December 17, 2010, {23.0.0.0 - 23.15.255.255}] to 23.255.255.255 will allow you to perform a "find IP address lookup" on the contained addresses. (Start country: UNITED STATES).

IP Address Range

Address at Start of Range

Address at End of Range

UNITED STATES, arin, Friday, December 17, 2010, (23.0.0.0 - 23.15.255.255)
UNITED STATES, arin, Friday, December 17, 2010, (23.0.0.0 - 23.15.255.255)
Who Is Summary Data
  • 23.0.0.0 - 23.255.255.255,
CANADA, arin, Thursday, September 29, 2011, (23.16.0.0 - 23.17.255.255)
CANADA, arin, Thursday, September 29, 2011, (23.16.0.0 - 23.17.255.255)
UNITED STATES, arin, Monday, September 12, 2011, (23.18.0.0 - 23.18.255.255)
UNITED STATES, arin, Monday, September 12, 2011, (23.18.0.0 - 23.18.255.255)
UNITED STATES, arin, Monday, April 25, 2011, (23.19.0.0 - 23.19.255.255)
UNITED STATES, arin, Monday, April 25, 2011, (23.19.0.0 - 23.19.255.255)
UNITED STATES, arin, Monday, September 19, 2011, (23.20.0.0 - 23.23.255.255)
UNITED STATES, arin, Monday, September 19, 2011, (23.20.0.0 - 23.23.255.255)
UNITED STATES, arin, Friday, January 13, 2012, (23.24.0.0 - 23.25.255.255)
UNITED STATES, arin, Friday, January 13, 2012, (23.24.0.0 - 23.25.255.255)
UNITED STATES, arin, Friday, February 3, 2012, (23.26.0.0 - 23.26.255.255)
UNITED STATES, arin, Friday, February 3, 2012, (23.26.0.0 - 23.26.255.255)
UNITED STATES, arin, Monday, February 13, 2012, (23.27.0.0 - 23.27.255.255)
UNITED STATES, arin, Monday, February 13, 2012, (23.27.0.0 - 23.27.255.255)
UNITED STATES, arin, Tuesday, February 21, 2012, (23.28.0.0 - 23.28.255.255)
UNITED STATES, arin, Tuesday, February 21, 2012, (23.28.0.0 - 23.28.255.255)
UNITED STATES, arin, Wednesday, March 7, 2012, (23.29.0.0 - 23.29.15.255)
UNITED STATES, arin, Tuesday, April 10, 2012, (23.29.224.0 - 23.29.255.255)
UNITED STATES, arin, Monday, April 30, 2012, (23.30.0.0 - 23.31.255.255)
UNITED STATES, arin, Monday, April 30, 2012, (23.30.0.0 - 23.31.255.255)
UNITED STATES, arin, Monday, May 16, 2011, (23.32.0.0 - 23.67.255.255)
UNITED STATES, arin, Monday, May 16, 2011, (23.32.0.0 - 23.67.255.255)
UNITED STATES, arin, Monday, April 30, 2012, (23.68.0.0 - 23.71.255.255)
UNITED STATES, arin, Monday, April 30, 2012, (23.68.0.0 - 23.71.255.255)
UNITED STATES, arin, Friday, January 25, 2013, (23.72.0.0 - 23.79.255.255)
UNITED STATES, arin, Friday, January 25, 2013, (23.72.0.0 - 23.79.255.255)