Local Calling Guide

Area code/prefix search

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Tulsa, OK

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
918-631 9 TULSOKTBDS1  9533 SOUTHWESTERN BELL 538      
918-632 A TULSOKNADS0  9533 SOUTHWESTERN BELL 538      
918-633 A TULUOKXOGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 538      
918-634 A TULSOKNADS0  9533 SOUTHWESTERN BELL 538      
918-634 0 TULSOKTBXGZ  321J HD CARRIER LLC 538   2026-04-09   
918-634 1 TULSOKNADS0  9533 SOUTHWESTERN BELL 538      
918-634 2 TULSOKNADS0  9533 SOUTHWESTERN BELL 538      
918-634 3 TULSOKNADS0  9533 SOUTHWESTERN BELL 538      
918-634 4 TULSOKNADS0  9533 SOUTHWESTERN BELL 538      
918-634 5 TULSOKNADS0  9533 SOUTHWESTERN BELL 538      
918-634 6 TULSOKNADS0  9533 SOUTHWESTERN BELL 538      
918-634 7 TULSOKNADS0  9533 SOUTHWESTERN BELL 538      
918-634 8 TULSOKNADS0  9533 SOUTHWESTERN BELL 538      
918-634 9 TULSOKNADS0  9533 SOUTHWESTERN BELL 538      
918-636 A TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-636 0 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-636 1 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-636 2 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-636 3 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-636 4 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-636 5 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-636 6 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-636 7 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-636 8 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-636 9 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-637 A TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-637 0 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-637 1 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-637 2 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-637 3 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-637 4 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-637 5 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-637 6 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-637 7 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-637 8 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-637 9 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-638 A TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-638 0 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-638 1 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-638 2 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-638 3 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-638 4 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-638 5 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-638 6 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-638 7 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-638 8 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-638 9 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-639 A TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-639 0 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-639 1 TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      

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Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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