Recent thousands-block assignments

0 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, all time — NPA 551

VONAGE AMERICA LLC 41

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
2023-09-19	551-374-1XXX	1000–1999	Assigned	VONAGE AMERICA LLC	197D	DUMONT	NJ
2023-09-19	551-374-4XXX	4000–4999	Assigned	VONAGE AMERICA LLC	197D	DUMONT	NJ
2022-09-12	551-359-5XXX	5000–5999	Assigned	VONAGE AMERICA LLC	197D	JERSEYCITY	NJ
2021-10-20	551-332-2XXX	2000–2999	Assigned	VONAGE AMERICA LLC	197D	BAYONNE	NJ
2021-06-23	551-322-4XXX	4000–4999	Assigned	VONAGE AMERICA LLC	197D	TEANECK	NJ
2021-06-23	551-322-6XXX	6000–6999	Assigned	VONAGE AMERICA LLC	197D	TEANECK	NJ
2020-07-21	551-299-3XXX	3000–3999	Assigned	VONAGE AMERICA LLC	197D	FAIR LAWN	NJ
2020-07-21	551-299-4XXX	4000–4999	Assigned	VONAGE AMERICA LLC	197D	FAIR LAWN	NJ
2020-07-21	551-314-2XXX	2000–2999	Assigned	VONAGE AMERICA LLC	197D	CLIFFSIDE	NJ
2020-07-21	551-314-3XXX	3000–3999	Assigned	VONAGE AMERICA LLC	197D	CLIFFSIDE	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
2020-07-09	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
2019-10-07	551-261-3XXX	3000–3999	Assigned	VONAGE AMERICA LLC	197D	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.