Recent thousands-block assignments

29 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 551

ONVOY, LLC - NJ 12

NEW CINGULAR WIRELESS PCS, LLC - DC 11

CSC WIRELESS, LLC 3

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 3

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
2020-07-20	551-305-4XXX	4000–4999	Assigned	ONVOY, LLC - NJ	637C	RIDGEWOOD	NJ
2020-07-20	551-310-2XXX	2000–2999	Assigned	ONVOY, LLC - NJ	637C	WESTWOOD	NJ
2020-07-20	551-310-3XXX	3000–3999	Assigned	ONVOY, LLC - NJ	637C	WESTWOOD	NJ
2020-07-20	551-345-4XXX	4000–4999	Assigned	ONVOY, LLC - NJ	637C	HASBROKHTS	NJ
2020-07-20	551-345-5XXX	5000–5999	Assigned	ONVOY, LLC - NJ	637C	HASBROKHTS	NJ
2020-07-20	551-356-8XXX	8000–8999	Assigned	ONVOY, LLC - NJ	637C	KEARNY	NJ
2020-07-20	551-465-5XXX	5000–5999	Assigned	ONVOY, LLC - NJ	637C	LEONIA	NJ
2020-07-20	551-465-7XXX	7000–7999	Assigned	ONVOY, LLC - NJ	637C	LEONIA	NJ
2020-07-20	551-465-9XXX	9000–9999	Assigned	ONVOY, LLC - NJ	637C	LEONIA	NJ
2020-07-20	551-529-4XXX	4000–4999	Assigned	ONVOY, LLC - NJ	637C	UNION CITY	NJ
2020-07-20	551-529-5XXX	5000–5999	Assigned	ONVOY, LLC - NJ	637C	UNION CITY	NJ
2020-07-20	551-552-8XXX	8000–8999	Assigned	ONVOY, LLC - NJ	637C	CRAGMERE	NJ
2020-07-20	551-552-9XXX	9000–9999	Assigned	ONVOY, LLC - NJ	637C	CRAGMERE	NJ
2020-07-20	551-600-8XXX	8000–8999	Assigned	ONVOY, LLC - NJ	637C	WYCKOFF	NJ
2020-07-20	551-600-9XXX	9000–9999	Assigned	ONVOY, LLC - NJ	637C	WYCKOFF	NJ
2020-07-14	551-210-5XXX	5000–5999	Assigned	VONAGE AMERICA LLC	197D	DUMONT	NJ
2020-07-14	551-210-6XXX	6000–6999	Assigned	VONAGE AMERICA LLC	197D	DUMONT	NJ
2020-07-14	551-270-5XXX	5000–5999	Assigned	VONAGE AMERICA LLC	197D	RAMSEY	NJ
2020-07-14	551-270-6XXX	6000–6999	Assigned	VONAGE AMERICA LLC	197D	RAMSEY	NJ
2020-07-13	551-758-2XXX	2000–2999	Assigned	ONVOY, LLC - NJ	637C	JERSEYCITY	NJ
2020-07-13	551-758-3XXX	3000–3999	Assigned	ONVOY, LLC - NJ	637C	JERSEYCITY	NJ
2020-07-13	551-758-4XXX	4000–4999	Assigned	ONVOY, LLC - NJ	637C	JERSEYCITY	NJ
2020-07-13	551-758-9XXX	9000–9999	Assigned	ONVOY, LLC - NJ	637C	JERSEYCITY	NJ
2020-07-09	551-310-0XXX	0000–0999	Assigned	VONAGE AMERICA LLC	197D	WESTWOOD	NJ
2020-07-09	551-310-1XXX	1000–1999	Assigned	VONAGE AMERICA LLC	197D	WESTWOOD	NJ
2020-07-07	551-303-3XXX	3000–3999	Assigned	VONAGE AMERICA LLC	197D	CLOSTER	NJ
2020-07-07	551-303-4XXX	4000–4999	Assigned	VONAGE AMERICA LLC	197D	CLOSTER	NJ
2020-07-07	551-356-5XXX	5000–5999	Assigned	VONAGE AMERICA LLC	197D	KEARNY	NJ
2020-07-07	551-356-6XXX	6000–6999	Assigned	VONAGE AMERICA LLC	197D	KEARNY	NJ
2020-07-07	551-465-2XXX	2000–2999	Assigned	VONAGE AMERICA LLC	197D	LEONIA	NJ
2020-07-07	551-465-6XXX	6000–6999	Assigned	VONAGE AMERICA LLC	197D	LEONIA	NJ
2020-07-07	551-557-2XXX	2000–2999	Assigned	VONAGE AMERICA LLC	197D	PARK RIDGE	NJ
2020-07-07	551-557-3XXX	3000–3999	Assigned	VONAGE AMERICA LLC	197D	PARK RIDGE	NJ
2020-07-02	551-296-3XXX	3000–3999	Assigned	VONAGE AMERICA LLC	197D	OAKLAND	NJ
2020-07-02	551-296-4XXX	4000–4999	Assigned	VONAGE AMERICA LLC	197D	OAKLAND	NJ
2020-07-02	551-345-7XXX	7000–7999	Assigned	VONAGE AMERICA LLC	197D	HASBROKHTS	NJ
2020-07-02	551-501-0XXX	0000–0999	Assigned	VONAGE AMERICA LLC	197D	ENGLEWOOD	NJ
2020-07-02	551-501-4XXX	4000–4999	Assigned	VONAGE AMERICA LLC	197D	ENGLEWOOD	NJ
2020-06-30	551-302-2XXX	2000–2999	Assigned	VONAGE AMERICA LLC	197D	HACKENSACK	NJ
2020-06-30	551-302-4XXX	4000–4999	Assigned	VONAGE AMERICA LLC	197D	HACKENSACK	NJ
2020-06-30	551-304-4XXX	4000–4999	Assigned	VONAGE AMERICA LLC	197D	RUTHERFORD	NJ
2020-06-30	551-304-6XXX	6000–6999	Assigned	VONAGE AMERICA LLC	197D	RUTHERFORD	NJ
2020-06-30	551-319-7XXX	7000–7999	Assigned	VONAGE AMERICA LLC	197D	WYCKOFF	NJ
2020-06-30	551-370-5XXX	5000–5999	Assigned	VONAGE AMERICA LLC	197D	RIDGEWOOD	NJ
2020-06-30	551-370-7XXX	7000–7999	Assigned	VONAGE AMERICA LLC	197D	RIDGEWOOD	NJ
2020-06-30	551-552-0XXX	0000–0999	Assigned	VONAGE AMERICA LLC	197D	CRAGMERE	NJ
2020-06-30	551-552-1XXX	1000–1999	Assigned	VONAGE AMERICA LLC	197D	CRAGMERE	NJ
2020-06-26	551-306-3XXX	3000–3999	Assigned	VONAGE AMERICA LLC	197D	UNION CITY	NJ
2020-06-26	551-306-4XXX	4000–4999	Assigned	VONAGE AMERICA LLC	197D	UNION CITY	NJ
2020-06-25	551-758-5XXX	5000–5999	Assigned	ONVOY SPECTRUM, LLC	624H	JERSEYCITY	NJ

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.