NumberResearch Membership · Data 09/18/2026

Recent prefix assignments

35 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/18/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.

Most active assignees, last 30 days
ONVOY, LLC - CA 35
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXAssigneeOCNRate centerState
2013-06-10 858-223 ONVOY, LLC - CA 649C SNDG LVTA CA
2013-01-14 661-426 ONVOY, LLC - CA 649C BKFD MAIN CA
2013-01-14 760-507 ONVOY, LLC - CA 649C PALM SPG CA
2012-11-15 951-364 ONVOY, LLC - CA 649C HEMT SAGE CA
2012-11-07 858-766 ONVOY, LLC - CA 649C LA JOLLA CA
2012-10-19 424-284 ONVOY, LLC - CA 649C BEVERLYHLS CA
2012-10-16 916-587 ONVOY, LLC - CA 649C LINCOLN CA
2012-03-22 707-388 ONVOY, LLC - CA 649C ARCATA CA
2012-02-17 619-720 ONVOY, LLC - CA 649C SNDG SNDG CA
2011-09-14 209-407 ONVOY, LLC - CA 649C TRACY CA
2011-08-26 408-707 ONVOY, LLC - CA 649C SNJS NORTH CA
2011-02-22 310-935 ONVOY, LLC - CA 649C SAN PEDRO CA
2010-11-01 559-554 ONVOY, LLC - CA 649C FRESNO CA
2010-09-09 657-208 ONVOY, LLC - CA 649C ANAHEIM CA
2009-11-25 408-520 ONVOY, LLC - CA 649C SNJS NORTH CA
2009-11-24 707-605 ONVOY, LLC - CA 649C POTTER VLY CA
2009-11-24 707-681 ONVOY, LLC - CA 649C NAPA CA
2009-09-03 408-459 ONVOY, LLC - CA 649C SNJS WEST CA
2009-02-23 925-289 ONVOY, LLC - CA 649C WALNUT CRK CA
2009-02-21 951-267 ONVOY, LLC - CA 649C BANNING CA
2009-02-17 760-620 ONVOY, LLC - CA 649C PALM SPG CA
2009-02-11 909-271 ONVOY, LLC - CA 649C RIALTO CA
2009-01-05 209-589 ONVOY, LLC - CA 649C MODESTO CA
2008-12-16 530-710 ONVOY, LLC - CA 649C REDDING CA
2008-10-13 408-372 ONVOY, LLC - CA 649C SNJS NORTH CA
2008-10-13 619-730 ONVOY, LLC - CA 649C CHULAVISTA CA
2008-10-13 818-453 ONVOY, LLC - CA 649C VAN NUYS CA
2008-10-13 858-222 ONVOY, LLC - CA 649C LA JOLLA CA
2008-10-13 949-208 ONVOY, LLC - CA 649C IRVINE CA
2008-09-02 805-817 ONVOY, LLC - CA 649C SNLUSOBSPO CA
2008-07-21 559-470 ONVOY, LLC - CA 649C FRESNO CA
2008-06-24 951-821 ONVOY, LLC - CA 649C SUN CITY CA
2008-05-29 661-748 ONVOY, LLC - CA 649C BKFD MAIN CA
2008-05-28 661-579 ONVOY, LLC - CA 649C LANCASTER CA
2008-05-28 951-595 ONVOY, LLC - CA 649C TEMECULA CA
2008-03-21 209-507 ONVOY, LLC - CA 649C STOCKTON CA
2008-03-21 415-685 ONVOY, LLC - CA 649C SNFC CNTRL CA
2008-02-15 323-739 ONVOY, LLC - CA 649C LSAN DA 03 CA
2008-02-15 707-408 ONVOY, LLC - CA 649C KENWOOD CA
2008-02-15 818-275 ONVOY, LLC - CA 649C LACRSCENTA CA
2008-01-25 760-592 ONVOY, LLC - CA 649C EL CENTRO CA
2007-12-21 209-487 ONVOY, LLC - CA 649C STOCKTON CA
2007-12-21 559-478 ONVOY, LLC - CA 649C FRESNO CA
2007-12-21 661-374 ONVOY, LLC - CA 649C BKFD MAIN CA
2007-11-16 209-451 ONVOY, LLC - CA 649C STOCKTON CA
2007-09-19 760-640 ONVOY, LLC - CA 649C BLYTHE CA
2007-09-15 415-230 ONVOY, LLC - CA 649C SNFC CNTRL CA
2007-09-15 619-272 ONVOY, LLC - CA 649C SNDG SNDG CA
2007-09-15 916-476 ONVOY, LLC - CA 649C SCRM MAIN CA
2007-09-11 916-469 ONVOY, LLC - CA 649C SCRM MAIN CA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.