| Exchange | Rate Center | State | Operating Company | 
      
        | 213-482 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-483 | LSAN DA 10 | CA | PACIFIC BELL | 
      
        | 213-484 | LSAN DA 10 | CA | PACIFIC BELL | 
      
        | 213-485 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-486 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-487 | LSAN DA 10 | CA | PACIFIC BELL | 
      
        | 213-488 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-489 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-493 | LSAN DA 07 | CA | NEUTRAL TANDEM-CALIFORNIA, LLC - CA | 
      
        | 213-494 | LSAN DA 01 | CA | NEXTEL COMMUNICATIONS, INC. | 
      
        | 213-496 | LSAN DA 01 | CA | AMERICAN MESSAGING (AM), INC. | 
      
        | 213-498 | LSAN DA 01 | CA | NETWORK SERVICES LLC | 
      
        | 213-499 | LSAN DA 01 | CA | AMERICAN MESSAGING (AM), INC. | 
      
        | 213-500 | LSAN DA 01 | CA | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 
      
        | 213-501 | LSAN DA 01 | CA | AMERICAN MESSAGING (AM), INC. | 
      
        | 213-503 | LSAN DA 01 | CA | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 
      
        | 213-504 | LSAN DA 01 | CA | DIGITCOM SERVICES, INC. | 
      
        | 213-505 | LSAN DA 01 | CA | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 
      
        | 213-506 | LSAN DA 01 | CA | ARCH WIRELESS HOLDINGS, INC. | 
      
        | 213-507 | LSAN DA 01 | CA | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 
      
        | 213-508 | LSAN DA 01 | CA | AMERICAN MESSAGING (AM), INC. | 
      
        | 213-509 | LSAN DA 01 | CA | BLUE LICENSES HOLDING, LLC | 
      
        | 213-511 |  | CA |  | 
      
        | 213-514 | LSAN DA 07 | CA | MCIMETRO, ATS, INC. | 
      
        | 213-516 | LSAN DA 07 | CA | MPOWER COMMUNICATIONS CORP. - CA | 
      
        | 213-517 | LSAN DA 10 | CA | DIGITCOM SERVICES, INC. | 
      
        | 213-519 | LSAN DA 07 | CA | AT&T LOCAL | 
      
        | 213-520 |  | CA | PACIFIC BELL | 
      
        | 213-522 | LSAN DA 07 | CA | CROWN CELLULAR & PAGING | 
      
        | 213-530 | LSAN DA 01 | CA | ARCH WIRELESS HOLDINGS, INC. | 
      
        | 213-531 | LSAN DA 10 | CA | MCI WORLDCOM COMMUNICATIONS, INC., CA | 
      
        | 213-532 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-533 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-534 | LSAN DA 01 | CA | WINSTAR COMMUNICATIONS, LLC - CA | 
      
        | 213-536 | LSAN DA 07 | CA | WINSTAR COMMUNICATIONS, LLC - CA | 
      
        | 213-537 | LSAN DA 01 | CA | TCAST COMMUNICATIONS, INC. - CA | 
      
        | 213-538 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-542 | LSAN DA 01 | CA | U.S. TELEPACIFIC CORP. - CA | 
      
        | 213-545 | LSAN DA 07 | CA | U.S. TELEPACIFIC CORP. - CA | 
      
        | 213-550 | LSAN DA 01 | CA | 01 COMMUNICATIONS, INC. - CA | 
      
        | 213-553 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-554 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-555 | LSAN0470T | CA | PACIFIC BELL | 
      
        | 213-559 | LSAN DA 01 | CA | PAC - WEST TELECOMM, INC. | 
      
        | 213-568 | LSAN DA 10 | CA | ADIR INTERNATIONAL EXPORT LTD. DBA LA CURACAO - CA | 
      
        | 213-570 | LSAN DA 10 | CA | ROYAL STREET COMMUNICATIONS, LLC | 
      
        | 213-572 | LSAN DA 01 | CA | MPOWER COMMUNICATIONS CORP. - CA | 
      
        | 213-576 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-579 | LSAN DA 01 | CA | COOK TELECOM, INC. | 
      
        | 213-580 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-587 | LSAN DA 01 | CA | CF COMMUNICATIONS, LLC DBA TELEKENEX - CA | 
      
        | 213-590 | LSAN DA 01 | CA | BLUE LICENSES HOLDING, LLC | 
      
        | 213-591 | CMTN GRDN | CA | BLUE LICENSES HOLDING, LLC | 
      
        | 213-593 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-595 | LSAN DA 01 | CA | BLUE LICENSES HOLDING, LLC | 
      
        | 213-596 | LSAN DA 01 | CA | BROADWING COMMUNICATINS. LLC - CA | 
      
        | 213-598 | LSAN DA 01 | CA | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 
      
        | 213-599 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-603 | LSAN DA 01 | CA | MPOWER NETWORKS SERVICES INC. - CA | 
      
        | 213-604 | LSAN DA 01 | CA | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 
      
        | 213-605 | LSAN DA 01 | CA | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 
      
        | 213-607 | LSAN DA 01 | CA | XO CALIFORNIA, INC. | 
      
        | 213-608 | LSAN DA 07 | CA | XO CALIFORNIA, INC. | 
      
        | 213-610 | LSAN DA 01 | CA | BLUE LICENSES HOLDING, LLC | 
      
        | 213-611 |  | CA |  | 
      
        | 213-612 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-613 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-614 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-615 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-616 | LSAN DA 10 | CA | XO CALIFORNIA, INC. | 
      
        | 213-617 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-618 | LSAN DA 01 | CA | BLUE LICENSES HOLDING, LLC | 
      
        | 213-620 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-621 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-622 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-623 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-624 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-625 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-626 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-627 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-628 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-629 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-630 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-631 | LSAN DA 01 | CA | BLUE LICENSES HOLDING, LLC | 
      
        | 213-632 | LSAN DA 10 | CA | MPOWER COMMUNICATIONS CORP. - CA | 
      
        | 213-633 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-634 | LSAN DA 01 | CA | GLOBAL NAPS CALIFORNIA, INC. - CA | 
      
        | 213-637 | LSAN DA 10 | CA | PACIFIC BELL | 
      
        | 213-639 | LSAN DA 10 | CA | PACIFIC BELL | 
      
        | 213-640 | LSAN DA 10 | CA | MCIMETRO, ATS, INC. | 
      
        | 213-652 | LSAN DA 01 | CA | PAC - WEST TELECOMM, INC. | 
      
        | 213-663 | LSAN DA 07 | CA | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 
      
        | 213-666 | LSAN DA 01 | CA | U.S. TELEPACIFIC CORP. - CA | 
      
        | 213-670 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-673 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-674 | LSAN DA 10 | CA | WINSTAR COMMUNICATIONS, LLC - CA | 
      
        | 213-675 | LSAN DA 07 | CA | T-MOBILE USA, INC. | 
      
        | 213-680 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-683 | LSAN DA 01 | CA | PACIFIC BELL | 
      
        | 213-687 | LSAN DA 01 | CA | PACIFIC BELL |