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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
972-503TXSOUTHWESTERN BELL9533DALLASDLLSTXADDS000/00/0000Prefix Type: RBOC
Switch Name: Addison DS0
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Dallas TX (552)
Tandem: DLLSTXRI01T
Detailed Switch Info
Thousands block for 972-503
972-503-0TXSOUTHWESTERN BELL9533DALLASDLLSTXADDS0N/APrefix Type: RBOC
Switch Name: Addison DS0
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Dallas TX (552)
Tandem: DLLSTXRI01T
Detailed Switch Info
972-503-1TXSOUTHWESTERN BELL9533DALLASDLLSTXADDS0N/APrefix Type: RBOC
Switch Name: Addison DS0
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Dallas TX (552)
Tandem: DLLSTXRI01T
Detailed Switch Info
972-503-2TXMETROPCS, INC. (T-Mobile US, Inc)5562DALLASDLLTTX01HMD03/14/2018Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Dallas TX (552)
Tandem: N/A
Detailed Switch Info
972-503-3TXSOUTHWESTERN BELL9533DALLASDLLSTXADDS0N/APrefix Type: RBOC
Switch Name: Addison DS0
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Dallas TX (552)
Tandem: DLLSTXRI01T
Detailed Switch Info
972-503-4TXBANDWIDTH.COM CLEC, LLC - TX004FDALLASNOCLLIKNOWN09/19/2014Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Dallas TX (552)
Tandem: N/A
Detailed Switch Info
972-503-5TXMETROPCS, INC. (T-Mobile US, Inc)5562DALLASDLLTTX01HMD06/24/2019Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Dallas TX (552)
Tandem: N/A
Detailed Switch Info
972-503-6TXBANDWIDTH.COM CLEC, LLC - TX004FDALLASNOCLLIKNOWN06/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Dallas TX (552)
Tandem: N/A
Detailed Switch Info
972-503-7TXSOUTHWESTERN BELL9533DALLASDLLSTXADDS0N/APrefix Type: RBOC
Switch Name: Addison DS0
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Dallas TX (552)
Tandem: DLLSTXRI01T
Detailed Switch Info
972-503-8TXONVOY, LLC - TX (Inteliquent)903CDALLASNOCLLIKNOWN01/20/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Dallas TX (552)
Tandem: N/A
Detailed Switch Info
972-503-9TXBANDWIDTH.COM CLEC, LLC - TX004FDALLASNOCLLIKNOWN06/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Dallas TX (552)
Tandem: N/A
Detailed Switch Info
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