NRNumberResearch Membership · Data 09/17/2026

← Area code 510

All assignees

800 prefixes in 510 · initial assignments from the NANPA CO code file, 09/17/2026

Prefixes held by all assignees in area code 510
NPA-NXXRate centerOCNAssignedPooled
510-600 HAYWARD 649C — Yes
510-601 OKLD MN-PD 9740 — Yes
510-602 FRNK MAIN 6006 2017-04-04 Yes
510-603 OKLD FRTVL 394L 2018-02-20 Yes
510-604 OKLD MN-PD 6010 — —
510-605 HAYWARD 6006 2018-01-17 Yes
510-606 HAYWARD 6006 2010-08-10 Yes
510-607 OKLD MN-PD 671J 2018-03-16 Yes
510-608 FRNK MAIN 9740 — Yes
510-609 RICHMOND 6529 2018-04-11 Yes
510-610 OKLD MN-PD 6010 — —
510-611 XXXXXXXXXX MULT — —
510-612 OKLD MN-PD 6010 — —
510-613 OKLD TRNID 9740 — Yes
510-614 OKLD TRNID 9740 — —
510-615 OKLD TRNID 9740 — —
510-616 OKLD BKLY 433E 2017-12-18 Yes
510-617 HRCUL-RODE 649C 2018-08-31 Yes
510-618 OKLD TRNID 9740 — Yes
510-619 RICHMOND 8826 — Yes
510-620 RICHMOND 9740 — Yes
510-621 RICHMOND 7229 — Yes
510-622 OKLD MN-PD 9740 — —
510-623 FRNK OLIVR 9740 — Yes
510-624 FRNK OLIVR 9740 — Yes
510-625 OKLD MN-PD 9740 — —
510-626 OKLD TRNID 981E 2016-07-29 Yes
510-627 OKLD MN-PD 9740 — Yes
510-628 OKLD MN-PD 9740 — Yes
510-629 OKLD ALMD 8826 — Yes
510-630 ELSBR-PINL 6529 2019-10-16 Yes
510-631 OKLD BKLY 6010 2015-10-02 Yes
510-632 OKLD TRNID 9740 — —
510-633 OKLD TRNID 9740 — —
510-634 HAYWARD 6006 2014-09-24 Yes
510-635 OKLD TRNID 9740 — —
510-636 OKLD TRNID 9740 — Yes
510-637 OKLD MN-PD 9740 — Yes
510-638 OKLD TRNID 9740 — —
510-639 OKLD TRNID 9740 — —
510-640 ELSBR-PINL 6529 2015-05-01 Yes
510-641 ELSBR-PINL 6010 2020-12-10 Yes
510-642 OKLD BKLY 9740 — —
510-643 OKLD BKLY 9740 — —
510-644 OKLD BKLY 9740 — —
510-645 OKLD MN-PD 9740 — —
510-646 OKLD BKLY 981E 2013-03-07 Yes
510-647 OKLD BKLY 9740 — Yes
510-648 FRNK MAIN 6010 — Yes
510-649 OKLD BKLY 9740 — —
510-650 ELSBR-PINL 649C 2017-12-21 Yes
510-651 FRNK OLIVR 9740 — —
510-652 OKLD MN-PD 9740 — —
510-653 OKLD MN-PD 9740 — —
510-654 OKLD MN-PD 9740 — —
510-655 OKLD MN-PD 9740 — —
510-656 FRNK OLIVR 9740 — —
510-657 FRNK OLIVR 9740 — —
510-658 OKLD MN-PD 9740 — —
510-659 FRNK OLIVR 9740 — Yes
510-660 RICHMOND 6010 2015-08-11 Yes
510-661 FRNK OLIVR 9740 — Yes
510-662 ELSBR-PINL 7229 — Yes
510-663 OKLD MN-PD 9740 — —
510-664 OKLD BKLY 9740 — —
510-665 OKLD BKLY 9740 — Yes
510-666 OKLD BKLY 9740 — Yes
510-667 OKLD TRNID 9740 — Yes
510-668 FRNK OLIVR 9740 — Yes
510-669 ELSBR-PINL 9740 — Yes
510-670 HAYWARD 9740 — —
510-671 OKLD ALMD 981E 2013-05-14 Yes
510-672 RICHMOND 6006 2002-09-19 Yes
510-673 FRNK MAIN 6006 — —
510-674 HAYWARD 649C 2014-11-03 Yes
510-675 FRNK GRNLF 9740 — Yes
510-676 FRNK MAIN 6010 2002-06-14 —
510-677 HAYWARD 5562 2001-03-22 Yes
510-678 OKLD TRNID 9740 — —
510-679 OKLD BKLY 6006 2015-04-13 Yes
510-680 RICHMOND 508J 2013-06-03 Yes
510-681 OKLD MN-PD 5562 — Yes
510-682 OKLD ALMD 5562 — Yes
510-683 FRNK OLIVR 9740 — Yes
510-684 OKLD BKLY 5562 — Yes
510-685 RICHMOND 6006 — —
510-686 OKLD TRNID 516C — Yes
510-687 FRNK OLIVR 9740 — —
510-688 HAYWARD 6529 — Yes
510-689 OKLD FRTVL 5562 2001-04-20 Yes
510-690 HAYWARD 9740 — Yes
510-691 HRCUL-RODE 6529 2001-09-19 Yes
510-692 OKLD TRNID 5562 — Yes
510-693 OKLD MN-PD 6010 — —
510-694 OKLD ALMD 649C 2014-12-08 Yes
510-695 HAYWARD 6006 2007-08-17 Yes
510-696 OKLD FRTVL 6529 2015-06-22 Yes
510-697 OKLD MN-PD 6010 — —
510-698 OKLD FRTVL 671J — Yes
510-699 OKLD MN-PD 6967 — —

These are initial assignees from NANPA CO-code records — because of number portability, the current serving carrier of individual numbers may differ. Bulk export requires a membership.