Input a CLLI:

Tip: A Partial CLLI can be entered, but must contain a minimum of the first 6 characters. I.E. 'DLLSTX'

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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
972-723TXSOUTHWESTERN BELL9533MIDLOTHIANMDLTTXGRRS000/00/0000Prefix Type: RBOC
Switch Name: Midlothian
Switch Type: Northern Telecom DMS10 (Digital)
LATA: Dallas TX (552)
Tandem: DLLSTXRI01T
Detailed Switch Info
Thousands block for 972-723
972-723-0TXSOUTHWESTERN BELL9533MIDLOTHIANMDLTTXGRRS0N/APrefix Type: RBOC
Switch Name: Midlothian
Switch Type: Northern Telecom DMS10 (Digital)
LATA: Dallas TX (552)
Tandem: DLLSTXRI01T
Detailed Switch Info
972-723-1TXSOUTHWESTERN BELL9533MIDLOTHIANMDLTTXGRRS0N/APrefix Type: RBOC
Switch Name: Midlothian
Switch Type: Northern Telecom DMS10 (Digital)
LATA: Dallas TX (552)
Tandem: DLLSTXRI01T
Detailed Switch Info
972-723-2TXSOUTHWESTERN BELL9533MIDLOTHIANMDLTTXGRRS0N/APrefix Type: RBOC
Switch Name: Midlothian
Switch Type: Northern Telecom DMS10 (Digital)
LATA: Dallas TX (552)
Tandem: DLLSTXRI01T
Detailed Switch Info
972-723-3TXSOUTHWESTERN BELL9533MIDLOTHIANMDLTTXGRRS0N/APrefix Type: RBOC
Switch Name: Midlothian
Switch Type: Northern Telecom DMS10 (Digital)
LATA: Dallas TX (552)
Tandem: DLLSTXRI01T
Detailed Switch Info
972-723-5TXSOUTHWESTERN BELL9533MIDLOTHIANMDLTTXGRRS0N/APrefix Type: RBOC
Switch Name: Midlothian
Switch Type: Northern Telecom DMS10 (Digital)
LATA: Dallas TX (552)
Tandem: DLLSTXRI01T
Detailed Switch Info
972-723-6TXSOUTHWESTERN BELL9533MIDLOTHIANMDLTTXGRRS0N/APrefix Type: RBOC
Switch Name: Midlothian
Switch Type: Northern Telecom DMS10 (Digital)
LATA: Dallas TX (552)
Tandem: DLLSTXRI01T
Detailed Switch Info
972-723-7TXSOUTHWESTERN BELL9533MIDLOTHIANMDLTTXGRRS0N/APrefix Type: RBOC
Switch Name: Midlothian
Switch Type: Northern Telecom DMS10 (Digital)
LATA: Dallas TX (552)
Tandem: DLLSTXRI01T
Detailed Switch Info
972-723-8TXSOUTHWESTERN BELL9533MIDLOTHIANMDLTTXGRRS0N/APrefix Type: RBOC
Switch Name: Midlothian
Switch Type: Northern Telecom DMS10 (Digital)
LATA: Dallas TX (552)
Tandem: DLLSTXRI01T
Detailed Switch Info
972-723-9TXSOUTHWESTERN BELL9533MIDLOTHIANMDLTTXGRRS0N/APrefix Type: RBOC
Switch Name: Midlothian
Switch Type: Northern Telecom DMS10 (Digital)
LATA: Dallas TX (552)
Tandem: DLLSTXRI01T
Detailed Switch Info
972-775TXSOUTHWESTERN BELL9533MIDLOTHIANMDLTTXGRRS000/00/0000Prefix Type: RBOC
Switch Name: Midlothian
Switch Type: Northern Telecom DMS10 (Digital)
LATA: Dallas TX (552)
Tandem: DLLSTXRI01T
Detailed Switch Info
Thousands block for 972-775
972-775-1TXSOUTHWESTERN BELL9533MIDLOTHIANMDLTTXGRRS0N/APrefix Type: RBOC
Switch Name: Midlothian
Switch Type: Northern Telecom DMS10 (Digital)
LATA: Dallas TX (552)
Tandem: DLLSTXRI01T
Detailed Switch Info
972-775-2TXSOUTHWESTERN BELL9533MIDLOTHIANMDLTTXGRRS0N/APrefix Type: RBOC
Switch Name: Midlothian
Switch Type: Northern Telecom DMS10 (Digital)
LATA: Dallas TX (552)
Tandem: DLLSTXRI01T
Detailed Switch Info
972-775-3TXSOUTHWESTERN BELL9533MIDLOTHIANMDLTTXGRRS0N/APrefix Type: RBOC
Switch Name: Midlothian
Switch Type: Northern Telecom DMS10 (Digital)
LATA: Dallas TX (552)
Tandem: DLLSTXRI01T
Detailed Switch Info
972-775-4TXSOUTHWESTERN BELL9533MIDLOTHIANMDLTTXGRRS0N/APrefix Type: RBOC
Switch Name: Midlothian
Switch Type: Northern Telecom DMS10 (Digital)
LATA: Dallas TX (552)
Tandem: DLLSTXRI01T
Detailed Switch Info
972-775-5TXSOUTHWESTERN BELL9533MIDLOTHIANMDLTTXGRRS0N/APrefix Type: RBOC
Switch Name: Midlothian
Switch Type: Northern Telecom DMS10 (Digital)
LATA: Dallas TX (552)
Tandem: DLLSTXRI01T
Detailed Switch Info
972-775-6TXSOUTHWESTERN BELL9533MIDLOTHIANMDLTTXGRRS0N/APrefix Type: RBOC
Switch Name: Midlothian
Switch Type: Northern Telecom DMS10 (Digital)
LATA: Dallas TX (552)
Tandem: DLLSTXRI01T
Detailed Switch Info
972-775-7TXSOUTHWESTERN BELL9533MIDLOTHIANMDLTTXGRRS0N/APrefix Type: RBOC
Switch Name: Midlothian
Switch Type: Northern Telecom DMS10 (Digital)
LATA: Dallas TX (552)
Tandem: DLLSTXRI01T
Detailed Switch Info
972-775-8TXSOUTHWESTERN BELL9533MIDLOTHIANMDLTTXGRRS0N/APrefix Type: RBOC
Switch Name: Midlothian
Switch Type: Northern Telecom DMS10 (Digital)
LATA: Dallas TX (552)
Tandem: DLLSTXRI01T
Detailed Switch Info
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