Input an Area Code (required) followed by the Prefix, or Exchange (optional):
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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
281-288TXSOUTHWESTERN BELL9533SPRINGSPRNTXSODS000/00/0000Prefix Type: RBOC
Switch Name: SPRING
Switch Type: N/A
LATA: Houston TX (560)
Tandem: N/A
Detailed Switch Info