Recent thousands-block assignments

34 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

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

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, last 30 days — NPA 442

NEW CINGULAR WIRELESS PCS, LLC 14

ONVOY, LLC - CA 10

HD CARRIER LLC 4

PEERLESS NETWORK OF CALIFORNIA, LLC - CA 2

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 2

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

Recent thousands-block assignments
Assigned	Thousands-block	Last 4 digits	Status	Assignee	OCN	Rate center	State
2020-08-12	442-766-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	INYOKERN	CA
2020-08-11	442-218-4XXX	4000–4999	Assigned	T-MOBILE USA, INC.	6529	LKISABELLA	CA
2020-08-11	442-877-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	ESCONDIDO	CA
2020-08-11	442-877-5XXX	5000–5999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	ESCONDIDO	CA
2020-08-11	442-877-6XXX	6000–6999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	ESCONDIDO	CA
2020-08-11	442-877-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	ESCONDIDO	CA
2020-08-11	442-877-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	ESCONDIDO	CA
2020-08-10	442-309-7XXX	7000–7999	Assigned	T-MOBILE USA, INC.	6529	BARSTOW	CA
2020-08-07	442-529-7XXX	7000–7999	Assigned	T-MOBILE USA, INC.	6529	INDIO	CA
2020-08-07	442-529-8XXX	8000–8999	Assigned	T-MOBILE USA, INC.	6529	INDIO	CA
2020-08-05	442-304-8XXX	8000–8999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - CA	8826	EAGLE MT	CA
2020-07-31	442-259-6XXX	6000–6999	Assigned	ONVOY, LLC - CA	649C	SUMMIT VLY	CA
2020-07-31	442-259-8XXX	8000–8999	Assigned	ONVOY, LLC - CA	649C	SUMMIT VLY	CA
2020-07-31	442-315-0XXX	0000–0999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	PALM SPG	CA
2020-07-31	442-315-1XXX	1000–1999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	PALM SPG	CA
2020-07-31	442-315-3XXX	3000–3999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	PALM SPG	CA
2020-07-31	442-315-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	PALM SPG	CA
2020-07-31	442-315-5XXX	5000–5999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	PALM SPG	CA
2020-07-31	442-315-6XXX	6000–6999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	PALM SPG	CA
2020-07-30	442-441-4XXX	4000–4999	Assigned	ONVOY, LLC - CA	649C	BRSW YERM	CA
2020-07-30	442-441-5XXX	5000–5999	Assigned	ONVOY, LLC - CA	649C	BRSW YERM	CA
2020-07-30	442-766-6XXX	6000–6999	Assigned	ONVOY, LLC - CA	649C	INYOKERN	CA
2020-07-30	442-766-7XXX	7000–7999	Assigned	ONVOY, LLC - CA	649C	INYOKERN	CA
2020-07-24	442-317-0XXX	0000–0999	Assigned	T-MOBILE USA, INC.	6529	ESCONDIDO	CA
2020-07-24	442-317-1XXX	1000–1999	Assigned	T-MOBILE USA, INC.	6529	ESCONDIDO	CA
2020-07-10	442-688-8XXX	8000–8999	Assigned	FRACTEL, LLC	965H	PALO VERDE	CA
2020-07-08	442-363-2XXX	2000–2999	Assigned	METROPCS NETWORKS, LLC	899D	VTVL ADLN	CA
2020-07-02	442-315-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	PALM SPG	CA
2020-07-02	442-315-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	PALM SPG	CA
2020-07-02	442-315-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	PALM SPG	CA
2020-07-02	442-317-2XXX	2000–2999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	ESCONDIDO	CA
2020-07-02	442-317-3XXX	3000–3999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	ESCONDIDO	CA
2020-07-02	442-317-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	ESCONDIDO	CA
2020-07-02	442-317-6XXX	6000–6999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	ESCONDIDO	CA
2020-07-02	442-317-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	ESCONDIDO	CA
2020-07-02	442-322-8XXX	8000–8999	Assigned	T-MOBILE USA, INC.	6529	BRAWLEY	CA
2020-07-02	442-322-9XXX	9000–9999	Assigned	T-MOBILE USA, INC.	6529	BRAWLEY	CA
2020-06-30	442-279-2XXX	2000–2999	Assigned	T-MOBILE USA, INC.	6529	BRAWLEY	CA
2020-06-29	442-320-8XXX	8000–8999	Assigned	VONAGE AMERICA LLC	197D	ENCINITAS	CA
2020-06-29	442-320-9XXX	9000–9999	Assigned	VONAGE AMERICA LLC	197D	ENCINITAS	CA
2020-06-22	442-336-4XXX	4000–4999	Assigned	ONVOY SPECTRUM, LLC	624H	VTVL APVY	CA
2020-06-22	442-336-5XXX	5000–5999	Assigned	ONVOY SPECTRUM, LLC	624H	VTVL APVY	CA
2020-06-22	442-336-6XXX	6000–6999	Assigned	ONVOY SPECTRUM, LLC	624H	VTVL APVY	CA
2020-06-18	442-380-3XXX	3000–3999	Assigned	T-MOBILE USA, INC.	6529	VICTORVL	CA
2020-06-18	442-380-4XXX	4000–4999	Assigned	T-MOBILE USA, INC.	6529	VICTORVL	CA
2020-06-15	442-292-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	VTVL APVY	CA
2020-06-15	442-292-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	VTVL APVY	CA
2020-06-11	442-317-5XXX	5000–5999	Assigned	VONAGE AMERICA LLC	197D	ESCONDIDO	CA
2020-06-11	442-317-7XXX	7000–7999	Assigned	VONAGE AMERICA LLC	197D	ESCONDIDO	CA
2020-06-10	442-298-7XXX	7000–7999	Assigned	ONVOY, LLC - CA	649C	TRONA	CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.