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
2016-10-10 619-775 ONVOY, LLC - CA 649C CORONADO CA
2016-10-10 626-495 ONVOY, LLC - CA 649C ALHAMBRA CA
2016-10-10 858-283 ONVOY, LLC - CA 649C LA JOLLA CA
2016-10-10 909-679 ONVOY, LLC - CA 649C COLTON CA
2016-10-10 909-698 ONVOY, LLC - CA 649C CRESTLINE CA
2016-10-10 909-729 ONVOY, LLC - CA 649C POMONA CA
2016-10-10 909-760 ONVOY, LLC - CA 649C DIAMONDBAR CA
2016-10-10 909-765 ONVOY, LLC - CA 649C MARSHALL CA
2016-10-07 831-257 ONVOY, LLC - CA 649C APTOS CA
2016-09-21 619-833 ONVOY, LLC - CA 649C JACUMBA CA
2016-09-07 619-771 ONVOY, LLC - CA 649C LA MESA CA
2016-08-08 213-214 ONVOY, LLC - CA 649C LSAN DA 10 CA
2016-07-19 209-719 ONVOY, LLC - CA 649C RIVERBANK CA
2016-07-19 909-756 ONVOY, LLC - CA 649C S BERNDINO CA
2016-07-18 323-986 ONVOY, LLC - CA 649C LSAN DA 04 CA
2016-07-18 424-380 ONVOY, LLC - CA 649C INGLEWOOD CA
2016-07-18 831-353 ONVOY, LLC - CA 649C WATSONVL CA
2016-07-15 510-906 ONVOY, LLC - CA 649C OKLD ALMD CA
2016-07-15 510-949 ONVOY, LLC - CA 649C HRCUL-RODE CA
2016-07-15 831-268 ONVOY, LLC - CA 649C FELTON CA
2016-07-14 628-245 ONVOY, LLC - CA 649C MILLVALLEY CA
2016-06-27 628-203 ONVOY, LLC - CA 649C STNSN-BLNS CA
2016-06-27 669-206 ONVOY, LLC - CA 649C SUNNYVALE CA
2016-06-27 949-771 ONVOY, LLC - CA 649C IRVINE CA
2016-06-24 209-309 ONVOY, LLC - CA 649C GROVELAND CA
2016-06-24 209-314 ONVOY, LLC - CA 649C GALT CA
2016-06-24 669-205 ONVOY, LLC - CA 649C GILROY CA
2016-06-24 707-710 ONVOY, LLC - CA 649C SANTA ROSA CA
2016-06-24 909-414 ONVOY, LLC - CA 649C ARROWHEAD CA
2016-06-23 909-870 ONVOY, LLC - CA 649C UPLAND CA
2016-05-17 657-332 ONVOY, LLC - CA 649C SILVERADO CA
2016-05-11 424-309 ONVOY, LLC - CA 649C INGLEWOOD CA
2016-05-11 424-317 ONVOY, LLC - CA 649C W ANGELES CA
2016-05-11 442-206 ONVOY, LLC - CA 649C IMPERIAL CA
2016-05-11 619-369 ONVOY, LLC - CA 649C HARBSNALPN CA
2016-05-11 650-410 ONVOY, LLC - CA 649C SSNFRNCSCO CA
2016-05-11 747-212 ONVOY, LLC - CA 649C AGOURA CA
2016-05-11 805-429 ONVOY, LLC - CA 649C POINT MUGU CA
2016-05-11 909-310 ONVOY, LLC - CA 649C CHINO CA
2016-05-11 909-323 ONVOY, LLC - CA 649C DIAMONDBAR CA
2016-05-11 909-406 ONVOY, LLC - CA 649C REDLANDS CA
2016-05-11 949-577 ONVOY, LLC - CA 649C IRVINE CA
2016-05-06 510-399 ONVOY, LLC - CA 649C FRNK MAIN CA
2016-05-04 510-462 ONVOY, LLC - CA 649C FRNK GRNLF CA
2016-04-29 628-229 ONVOY, LLC - CA 649C POINTREYES CA
2016-04-21 657-325 ONVOY, LLC - CA 649C BUENA PARK CA
2016-03-22 657-377 ONVOY, LLC - CA 649C GARDEN GRV CA
2016-03-21 442-203 ONVOY, LLC - CA 649C BRIDGEPORT CA
2016-03-17 831-318 ONVOY, LLC - CA 649C APTOS CA
2016-03-17 831-322 ONVOY, LLC - CA 649C WATSONVL 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.