Recent thousands-block assignments

15 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 279

T-MOBILE USA, INC. 7

EXIANT COMMUNICATIONS LLC 3

NEW CINGULAR WIRELESS PCS, LLC 2

PEERLESS NETWORK OF CALIFORNIA, LLC - CA 1

PAETEC ITEL, LLC 1

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
2020-06-23	279-356-0XXX	0000–0999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	FOLSOM	CA
2020-06-23	279-356-1XXX	1000–1999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	FOLSOM	CA
2020-06-23	279-356-2XXX	2000–2999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	FOLSOM	CA
2020-06-23	279-356-6XXX	6000–6999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	FOLSOM	CA
2020-06-23	279-356-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	FOLSOM	CA
2020-06-19	279-345-5XXX	5000–5999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	SCRM NORTH	CA
2020-06-19	279-345-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	SCRM NORTH	CA
2020-06-19	279-345-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	SCRM NORTH	CA
2020-06-19	279-345-9XXX	9000–9999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	SCRM NORTH	CA
2020-06-19	279-666-4XXX	4000–4999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	SCRM NORTH	CA
2020-06-19	279-666-5XXX	5000–5999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	SCRM NORTH	CA
2020-06-19	279-666-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - CA	981E	SCRM NORTH	CA
2020-06-17	279-205-1XXX	1000–1999	Assigned	ONVOY SPECTRUM, LLC	624H	SCRM MAIN	CA
2020-06-17	279-205-9XXX	9000–9999	Assigned	ONVOY SPECTRUM, LLC	624H	SCRM MAIN	CA
2020-06-08	279-356-3XXX	3000–3999	Assigned	ONVOY, LLC - CA	649C	FOLSOM	CA
2020-06-08	279-356-4XXX	4000–4999	Assigned	ONVOY, LLC - CA	649C	FOLSOM	CA
2020-06-08	279-356-5XXX	5000–5999	Assigned	ONVOY, LLC - CA	649C	FOLSOM	CA
2020-06-08	279-500-3XXX	3000–3999	Assigned	ONVOY, LLC - CA	649C	MICHIGNBAR	CA
2020-06-08	279-500-4XXX	4000–4999	Assigned	ONVOY, LLC - CA	649C	MICHIGNBAR	CA
2020-06-08	279-500-6XXX	6000–6999	Assigned	ONVOY, LLC - CA	649C	MICHIGNBAR	CA
2020-06-02	279-356-7XXX	7000–7999	Assigned	FRACTEL, LLC	965H	FOLSOM	CA
2020-06-02	279-356-9XXX	9000–9999	Assigned	FRACTEL, LLC	965H	FOLSOM	CA
2020-05-29	279-400-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	LINCOLN	CA
2020-05-27	279-234-5XXX	5000–5999	Assigned	FRACTEL, LLC	965H	SCRM MAIN	CA
2020-05-27	279-345-6XXX	6000–6999	Assigned	FRACTEL, LLC	965H	SCRM NORTH	CA
2020-05-12	279-201-2XXX	2000–2999	Assigned	ONVOY, LLC - CA	649C	FAIR OAKS	CA
2020-05-12	279-201-3XXX	3000–3999	Assigned	ONVOY, LLC - CA	649C	FAIR OAKS	CA
2020-05-12	279-204-2XXX	2000–2999	Assigned	ONVOY, LLC - CA	649C	SCRM NORTH	CA
2020-05-12	279-400-2XXX	2000–2999	Assigned	ONVOY, LLC - CA	649C	LINCOLN	CA
2020-05-07	279-205-3XXX	3000–3999	Assigned	ONVOY, LLC - CA	649C	SCRM MAIN	CA
2020-05-07	279-205-4XXX	4000–4999	Assigned	ONVOY, LLC - CA	649C	SCRM MAIN	CA
2020-05-07	279-205-5XXX	5000–5999	Assigned	ONVOY, LLC - CA	649C	SCRM MAIN	CA
2020-05-07	279-205-6XXX	6000–6999	Assigned	ONVOY, LLC - CA	649C	SCRM MAIN	CA
2020-05-07	279-205-7XXX	7000–7999	Assigned	ONVOY, LLC - CA	649C	SCRM MAIN	CA
2020-05-07	279-205-8XXX	8000–8999	Assigned	ONVOY, LLC - CA	649C	SCRM MAIN	CA
2020-05-07	279-465-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	FOLSOM	CA
2020-05-07	279-465-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	FOLSOM	CA
2020-05-07	279-465-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	FOLSOM	CA
2020-05-07	279-465-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	FOLSOM	CA
2020-05-07	279-465-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	FOLSOM	CA
2020-05-07	279-465-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	FOLSOM	CA
2020-05-04	279-204-0XXX	0000–0999	Assigned	AIRESPRING, INC.	996H	SCRM NORTH	CA
2020-05-04	279-205-0XXX	0000–0999	Assigned	AIRESPRING, INC.	996H	SCRM MAIN	CA
2020-05-04	279-465-3XXX	3000–3999	Assigned	VONAGE AMERICA LLC	197D	FOLSOM	CA
2020-05-04	279-465-4XXX	4000–4999	Assigned	VONAGE AMERICA LLC	197D	FOLSOM	CA
2020-04-20	279-205-2XXX	2000–2999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - CA	8826	SCRM MAIN	CA
2020-04-13	279-465-0XXX	0000–0999	Assigned	PEERLESS NETWORK OF CALIFORNIA, LLC - CA	373F	FOLSOM	CA
2020-04-10	279-529-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	RSVL CTHT	CA
2020-04-10	279-529-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	RSVL CTHT	CA
2020-04-06	279-204-6XXX	6000–6999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	SCRM NORTH	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.