Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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Switch: CHCGILNEXJX

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
312-888 9 Chicago Zone 01-Calumet IL 318J COMCAST IP PHONE, LLC 358   2012-08-31   
312-929 2 Chicago Zone 01-Calumet IL 318J COMCAST IP PHONE, LLC 358   2006-12-18   
312-929 3 Chicago Zone 01-Calumet IL 318J COMCAST IP PHONE, LLC 358   2006-12-18   
312-929 4 Chicago Zone 01-Calumet IL 318J COMCAST IP PHONE, LLC 358   2006-12-18   
312-982 A Chicago Zone 01-Calumet IL 318J COMCAST IP PHONE, LLC 358      
312-982 2 Chicago Zone 01-Calumet IL 318J COMCAST IP PHONE, LLC 358   2014-11-21   
312-988 0 Chicago Zone 01-Superior IL 318J COMCAST IP PHONE, LLC 358   2012-12-31   
312-989 3 Chicago Zone 01-Calumet IL 318J COMCAST IP PHONE, LLC 358   2015-07-30   
331-204 6 Naperville IL 318J COMCAST IP PHONE, LLC 358   2016-10-17   
331-207 8 Yorkville IL 318J COMCAST IP PHONE, LLC 358   2014-05-27   
331-209 9 Elmhurst IL 318J COMCAST IP PHONE, LLC 358   2014-06-30   
331-212 5 Aurora IL 318J COMCAST IP PHONE, LLC 358   2012-08-29   
331-212 6 Aurora IL 318J COMCAST IP PHONE, LLC 358   2012-12-21   
331-213 7 Naperville IL 318J COMCAST IP PHONE, LLC 358   2012-07-02   
331-216 5 Oswego IL 318J COMCAST IP PHONE, LLC 358   2015-04-03   
331-218 4 Wheaton IL 318J COMCAST IP PHONE, LLC 358   2014-04-03   
331-225 0 Elmhurst IL 318J COMCAST IP PHONE, LLC 358   2014-08-12   
331-225 2 Elmhurst IL 318J COMCAST IP PHONE, LLC 358   2012-10-04   
331-225 3 Elmhurst IL 318J COMCAST IP PHONE, LLC 358   2012-10-04   
331-226 2 Naperville IL 318J COMCAST IP PHONE, LLC 358   2017-06-06   
331-229 3 Naperville IL 318J COMCAST IP PHONE, LLC 358   2013-08-01   
331-229 8 Naperville IL 318J COMCAST IP PHONE, LLC 358   2013-11-20   
331-233 6 Downers Grove IL 318J COMCAST IP PHONE, LLC 358   2019-04-18   
331-240 2 West Chicago IL 318J COMCAST IP PHONE, LLC 358   2013-11-20   
331-248 A Geneva IL 318J COMCAST IP PHONE, LLC 358      
331-248 0 Geneva IL 318J COMCAST IP PHONE, LLC 358   2007-10-07   
331-248 8 Geneva IL 318J COMCAST IP PHONE, LLC 358   2014-07-09   
331-249 6 Naperville IL 318J COMCAST IP PHONE, LLC 358   2019-10-07   
331-251 6 Downers Grove IL 318J COMCAST IP PHONE, LLC 358   2013-12-01   
331-252 4 Warrenville IL 318J COMCAST IP PHONE, LLC 358   2023-05-08   
331-256 6 Aurora IL 318J COMCAST IP PHONE, LLC 358   2014-04-28   
331-281 0 Naperville IL 318J COMCAST IP PHONE, LLC 358   2013-05-23   
331-286 3 Geneva IL 318J COMCAST IP PHONE, LLC 358   2022-10-14   
331-286 4 Geneva IL 318J COMCAST IP PHONE, LLC 358   2022-10-14   
331-291 5 Downers Grove IL 318J COMCAST IP PHONE, LLC 358   2022-10-30   
331-291 6 Downers Grove IL 318J COMCAST IP PHONE, LLC 358   2022-10-30   
331-300 2 Aurora IL 318J COMCAST IP PHONE, LLC 358   2016-07-21   
331-301 5 Aurora IL 318J COMCAST IP PHONE, LLC 358   2015-07-10   
331-302 5 Aurora IL 318J COMCAST IP PHONE, LLC 358   2014-09-13   
331-307 7 Lombard IL 318J COMCAST IP PHONE, LLC 358   2015-08-20   
331-318 7 Lemont IL 318J COMCAST IP PHONE, LLC 358   2014-07-28   
331-318 8 Lemont IL 318J COMCAST IP PHONE, LLC 358   2014-08-14   
331-334 8 Geneva IL 318J COMCAST IP PHONE, LLC 358   2023-03-18   
331-401 5 Naperville IL 318J COMCAST IP PHONE, LLC 358   2016-02-05   
331-457 5 Naperville IL 318J COMCAST IP PHONE, LLC 358   2010-09-18   
331-472 4 Naperville IL 318J COMCAST IP PHONE, LLC 358   2010-11-29   
331-631 4 Downers Grove IL 318J COMCAST IP PHONE, LLC 358   2022-10-29   
331-631 5 Downers Grove IL 318J COMCAST IP PHONE, LLC 358   2022-10-29   
331-701 7 Naperville IL 318J COMCAST IP PHONE, LLC 358   2015-04-28   
331-702 2 Naperville IL 318J COMCAST IP PHONE, LLC 358   2014-06-20   

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Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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