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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
331-551ILNEW CINGULAR WIRELESS PCS, LLC - IL (AT&T Wireless)6534LOMBARDBURGILAHGT311/05/2008Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
Thousands block for 331-551
331-551-0ILNEW CINGULAR WIRELESS PCS, LLC - IL (AT&T Wireless)6534LOMBARDBURGILAHGT311/07/2008Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
331-551-1ILNEW CINGULAR WIRELESS PCS, LLC - IL (AT&T Wireless)6534LOMBARDBURGILAHGT311/07/2008Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
331-551-2ILNEW CINGULAR WIRELESS PCS, LLC - IL (AT&T Wireless)6534LOMBARDBURGILAHGT311/07/2008Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
331-551-3ILT-MOBILE USA, INC. (T-Mobile US, Inc)6529LOMBARDCHCGILMF2MD10/08/2014Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
331-551-4ILT-MOBILE USA, INC. (T-Mobile US, Inc)6529LOMBARDCHCGILMF2MD10/08/2014Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
331-551-5ILFIRST COMMUNICATIONS, LLC5917LOMBARDNOCLLIKNOWN12/30/2009Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
331-551-6ILBANDWIDTH.COM CLEC, LLC - IL984ELOMBARDNOCLLIKNOWN05/27/2010Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
331-551-7ILONVOY, LLC (Inteliquent)224CLOMBARDNOCLLIKNOWN06/22/2010Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
331-551-8ILBANDWIDTH.COM CLEC, LLC - IL984ELOMBARDNOCLLIKNOWN09/30/2010Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
331-551-9ILBANDWIDTH.COM CLEC, LLC - IL984ELOMBARDNOCLLIKNOWN02/17/2011Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info