Recent thousands-block assignments

11 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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 573

INTRADO COMMUNICATIONS, LLC 4

ONVOY, LLC - MO 2

BANDWIDTH.COM CLEC, LLC - MO 2

EXIANT COMMUNICATIONS LLC 1

E. RITTER COMMUNICATIONS, 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
2017-01-17	573-467-4XXX	4000–4999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO	7432	ROLLA	MO
2017-01-12	573-309-9XXX	9000–9999	Assigned	BANDWIDTH.COM CLEC, LLC - MO	993E	BELL CITY	MO
2017-01-11	573-279-4XXX	4000–4999	Assigned	BANDWIDTH.COM CLEC, LLC - MO	993E	WELLSVILLE	MO
2017-01-11	573-319-0XXX	0000–0999	Assigned	BANDWIDTH.COM CLEC, LLC - MO	993E	MACKSCREEK	MO
2017-01-11	573-319-1XXX	1000–1999	Assigned	BANDWIDTH.COM CLEC, LLC - MO	993E	MACKSCREEK	MO
2017-01-11	573-326-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - MO	993E	MARSTON	MO
2016-12-13	573-373-3XXX	3000–3999	Assigned	CHARTER IP ENABLED SERVICES, LLC	792K	LADDONIA	MO
2016-12-08	573-482-8XXX	8000–8999	Assigned	T-MOBILE USA, INC.	6529	FARMINGTON	MO
2016-11-28	573-395-6XXX	6000–6999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	TAOS	MO
2016-11-28	573-533-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CENTERTOWN	MO
2016-11-28	573-550-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	FULTON	MO
2016-11-28	573-550-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	FULTON	MO
2016-11-22	573-554-0XXX	0000–0999	Assigned	T-MOBILE USA, INC.	6529	COLUMBIA	MO
2016-11-18	573-267-4XXX	4000–4999	Assigned	ONVOY, LLC - MO	093F	CENTER	MO
2016-11-18	573-267-5XXX	5000–5999	Assigned	ONVOY, LLC - MO	093F	CENTER	MO
2016-11-17	573-738-9XXX	9000–9999	Assigned	PEERLESS NETWORK OF MISSOURI, LLC - MO	225F	SENATH	MO
2016-11-10	573-502-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	GRAVOIS ML	MO
2016-11-07	573-284-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	VERSAILLES	MO
2016-11-07	573-284-5XXX	5000–5999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	VERSAILLES	MO
2016-11-07	573-430-2XXX	2000–2999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	FLAT RIVER	MO
2016-11-07	573-430-3XXX	3000–3999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	FLAT RIVER	MO
2016-10-31	573-476-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO	5814	COLUMBIA	MO
2016-10-14	573-649-0XXX	0000–0999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	E PRAIRIE	MO
2016-10-14	573-649-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	E PRAIRIE	MO
2016-09-21	573-509-0XXX	0000–0999	Assigned	ONVOY, LLC - MO	093F	ALTEBGFRHN	MO
2016-09-21	573-798-0XXX	0000–0999	Assigned	ONVOY, LLC - MO	093F	MOREHOUSE	MO
2016-09-21	573-923-0XXX	0000–0999	Assigned	ONVOY, LLC - MO	093F	BLOOMFIELD	MO
2016-09-21	573-923-1XXX	1000–1999	Assigned	ONVOY, LLC - MO	093F	BLOOMFIELD	MO
2016-09-21	573-966-0XXX	0000–0999	Assigned	ONVOY, LLC - MO	093F	LEADWOOD	MO
2016-09-21	573-966-1XXX	1000–1999	Assigned	ONVOY, LLC - MO	093F	LEADWOOD	MO
2016-09-20	573-963-0XXX	0000–0999	Assigned	ONVOY, LLC - MO	093F	NEW MADRID	MO
2016-09-19	573-203-0XXX	0000–0999	Assigned	ONVOY, LLC - MO	093F	SENATH	MO
2016-09-19	573-203-1XXX	1000–1999	Assigned	ONVOY, LLC - MO	093F	SENATH	MO
2016-09-19	573-284-2XXX	2000–2999	Assigned	ONVOY, LLC - MO	093F	VERSAILLES	MO
2016-09-19	573-284-3XXX	3000–3999	Assigned	ONVOY, LLC - MO	093F	VERSAILLES	MO
2016-09-19	573-328-3XXX	3000–3999	Assigned	ONVOY, LLC - MO	093F	QULIN	MO
2016-09-19	573-342-1XXX	1000–1999	Assigned	ONVOY, LLC - MO	093F	RICHWOODS	MO
2016-09-19	573-394-3XXX	3000–3999	Assigned	ONVOY, LLC - MO	093F	RISCO	MO
2016-09-19	573-398-4XXX	4000–4999	Assigned	ONVOY, LLC - MO	093F	SCOTT CITY	MO
2016-09-19	573-401-4XXX	4000–4999	Assigned	ONVOY, LLC - MO	093F	ST MARYS	MO
2016-09-19	573-412-3XXX	3000–3999	Assigned	ONVOY, LLC - MO	093F	PORTAGEVL	MO
2016-09-19	573-413-4XXX	4000–4999	Assigned	ONVOY, LLC - MO	093F	POPLAR BLF	MO
2016-09-19	573-413-5XXX	5000–5999	Assigned	ONVOY, LLC - MO	093F	POPLAR BLF	MO
2016-09-19	573-599-2XXX	2000–2999	Assigned	ONVOY, LLC - MO	093F	TUSCUMBIA	MO
2016-09-19	573-599-3XXX	3000–3999	Assigned	ONVOY, LLC - MO	093F	TUSCUMBIA	MO
2016-09-19	573-605-4XXX	4000–4999	Assigned	ONVOY, LLC - MO	093F	PERRYVILLE	MO
2016-09-19	573-621-8XXX	8000–8999	Assigned	ONVOY, LLC - MO	093F	SIKESTON	MO
2016-09-19	573-665-2XXX	2000–2999	Assigned	ONVOY, LLC - MO	093F	PAYNESVL	MO
2016-09-19	573-665-3XXX	3000–3999	Assigned	ONVOY, LLC - MO	093F	PAYNESVL	MO
2016-09-19	573-678-9XXX	9000–9999	Assigned	ONVOY, LLC - MO	093F	RICHWOODS	MO

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.