Recent thousands-block assignments

5 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 520

NEW CINGULAR WIRELESS PCS, LLC 3

INTRADO COMMUNICATIONS, LLC 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
2020-12-28	520-506-2XXX	2000–2999	Assigned	ONVOY, LLC - AZ	630E	TOMBSTONE	AZ
2020-12-28	520-506-3XXX	3000–3999	Assigned	ONVOY, LLC - AZ	630E	TOMBSTONE	AZ
2020-12-28	520-506-4XXX	4000–4999	Assigned	ONVOY, LLC - AZ	630E	TOMBSTONE	AZ
2020-12-28	520-506-5XXX	5000–5999	Assigned	ONVOY, LLC - AZ	630E	TOMBSTONE	AZ
2020-12-28	520-532-1XXX	1000–1999	Assigned	ONVOY, LLC - AZ	630E	CASAGRANDE	AZ
2020-12-28	520-532-2XXX	2000–2999	Assigned	ONVOY, LLC - AZ	630E	CASAGRANDE	AZ
2020-12-28	520-532-3XXX	3000–3999	Assigned	ONVOY, LLC - AZ	630E	CASAGRANDE	AZ
2020-12-28	520-532-4XXX	4000–4999	Assigned	ONVOY, LLC - AZ	630E	CASAGRANDE	AZ
2020-12-28	520-532-5XXX	5000–5999	Assigned	ONVOY, LLC - AZ	630E	CASAGRANDE	AZ
2020-12-28	520-593-1XXX	1000–1999	Assigned	ONVOY, LLC - AZ	630E	HAYDEN	AZ
2020-12-28	520-593-2XXX	2000–2999	Assigned	ONVOY, LLC - AZ	630E	HAYDEN	AZ
2020-12-28	520-593-5XXX	5000–5999	Assigned	ONVOY, LLC - AZ	630E	HAYDEN	AZ
2020-12-28	520-637-7XXX	7000–7999	Assigned	T-MOBILE USA, INC.	6529	CASAGRANDE	AZ
2020-12-28	520-637-8XXX	8000–8999	Assigned	T-MOBILE USA, INC.	6529	CASAGRANDE	AZ
2020-12-28	520-637-9XXX	9000–9999	Assigned	T-MOBILE USA, INC.	6529	CASAGRANDE	AZ
2020-12-23	520-503-1XXX	1000–1999	Assigned	ONVOY, LLC - AZ	630E	WILLCOX	AZ
2020-12-23	520-503-2XXX	2000–2999	Assigned	ONVOY, LLC - AZ	630E	WILLCOX	AZ
2020-12-23	520-503-3XXX	3000–3999	Assigned	ONVOY, LLC - AZ	630E	WILLCOX	AZ
2020-12-23	520-503-4XXX	4000–4999	Assigned	ONVOY, LLC - AZ	630E	WILLCOX	AZ
2020-12-23	520-503-5XXX	5000–5999	Assigned	ONVOY, LLC - AZ	630E	WILLCOX	AZ
2020-12-23	520-527-0XXX	0000–0999	Assigned	ONVOY, LLC - AZ	630E	BENSON	AZ
2020-12-23	520-527-1XXX	1000–1999	Assigned	ONVOY, LLC - AZ	630E	BENSON	AZ
2020-12-23	520-527-2XXX	2000–2999	Assigned	ONVOY, LLC - AZ	630E	BENSON	AZ
2020-12-23	520-536-2XXX	2000–2999	Assigned	ONVOY, LLC - AZ	630E	DOUGLAS	AZ
2020-12-23	520-536-3XXX	3000–3999	Assigned	ONVOY, LLC - AZ	630E	DOUGLAS	AZ
2020-12-23	520-536-4XXX	4000–4999	Assigned	ONVOY, LLC - AZ	630E	DOUGLAS	AZ
2020-12-23	520-536-5XXX	5000–5999	Assigned	ONVOY, LLC - AZ	630E	DOUGLAS	AZ
2020-12-22	520-524-0XXX	0000–0999	Assigned	ONVOY, LLC - AZ	630E	TUCSON	AZ
2020-12-22	520-524-1XXX	1000–1999	Assigned	ONVOY, LLC - AZ	630E	TUCSON	AZ
2020-12-22	520-524-2XXX	2000–2999	Assigned	ONVOY, LLC - AZ	630E	TUCSON	AZ
2020-12-22	520-524-3XXX	3000–3999	Assigned	ONVOY, LLC - AZ	630E	TUCSON	AZ
2020-12-22	520-524-4XXX	4000–4999	Assigned	ONVOY, LLC - AZ	630E	TUCSON	AZ
2020-12-22	520-524-5XXX	5000–5999	Assigned	ONVOY, LLC - AZ	630E	TUCSON	AZ
2020-12-22	520-524-6XXX	6000–6999	Assigned	ONVOY, LLC - AZ	630E	TUCSON	AZ
2020-12-21	520-502-0XXX	0000–0999	Assigned	ONVOY, LLC - AZ	630E	SASABE	AZ
2020-12-21	520-502-1XXX	1000–1999	Assigned	ONVOY, LLC - AZ	630E	SASABE	AZ
2020-12-21	520-502-3XXX	3000–3999	Assigned	ONVOY, LLC - AZ	630E	SASABE	AZ
2020-12-21	520-502-4XXX	4000–4999	Assigned	ONVOY, LLC - AZ	630E	SASABE	AZ
2020-12-21	520-521-2XXX	2000–2999	Assigned	ONVOY, LLC - AZ	630E	SAN MANUEL	AZ
2020-12-21	520-521-3XXX	3000–3999	Assigned	ONVOY, LLC - AZ	630E	SAN MANUEL	AZ
2020-12-21	520-525-6XXX	6000–6999	Assigned	ONVOY, LLC - AZ	630E	BISBEE	AZ
2020-12-21	520-525-7XXX	7000–7999	Assigned	ONVOY, LLC - AZ	630E	BISBEE	AZ
2020-12-21	520-525-9XXX	9000–9999	Assigned	ONVOY, LLC - AZ	630E	BISBEE	AZ
2020-12-17	520-386-6XXX	6000–6999	Assigned	ONVOY, LLC - AZ	630E	BENSON	AZ
2020-12-17	520-386-7XXX	7000–7999	Assigned	ONVOY, LLC - AZ	630E	BENSON	AZ
2020-12-17	520-655-1XXX	1000–1999	Assigned	ONVOY, LLC - AZ	630E	SUPERIOR	AZ
2020-12-17	520-655-3XXX	3000–3999	Assigned	ONVOY, LLC - AZ	630E	SUPERIOR	AZ
2020-12-17	520-655-4XXX	4000–4999	Assigned	ONVOY, LLC - AZ	630E	SUPERIOR	AZ
2020-12-17	520-924-1XXX	1000–1999	Assigned	ONVOY, LLC - AZ	630E	NOGALES	AZ
2020-12-17	520-924-3XXX	3000–3999	Assigned	ONVOY, LLC - AZ	630E	NOGALES	AZ

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.