Recent thousands-block assignments

11 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 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
2020-05-18	573-383-4XXX	4000–4999	Assigned	UNITED STATES CELLULAR - MO	6275	CANTON	MO
2020-04-28	573-398-1XXX	1000–1999	Assigned	PEERLESS NETWORK OF MISSOURI, LLC - MO	225F	SCOTT CITY	MO
2020-04-17	573-890-3XXX	3000–3999	Assigned	UNITED STATES CELLULAR - MO	6275	FULTON	MO
2020-04-15	573-536-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	TAOS	MO
2020-04-10	573-510-0XXX	0000–0999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	JACKSON	MO
2020-04-10	573-510-1XXX	1000–1999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	JACKSON	MO
2020-04-06	573-932-0XXX	0000–0999	Assigned	UNITED STATES CELLULAR - MO	6275	CAMDENTON	MO
2020-04-02	573-516-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	FLAT RIVER	MO
2020-04-01	573-469-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO	5814	JEFFERSNCY	MO
2020-03-24	573-516-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO	5814	FLAT RIVER	MO
2020-03-10	573-381-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - MO	993E	CAPEGIRARD	MO
2020-03-10	573-536-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	TAOS	MO
2020-03-10	573-699-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - MO	993E	SAFE	MO
2020-03-10	573-758-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - MO	993E	GRANDIN	MO
2020-03-04	573-840-6XXX	6000–6999	Assigned	T-MOBILE USA, INC.	6529	POPLAR BLF	MO
2020-02-19	573-417-6XXX	6000–6999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MO	7218	LINN	MO
2020-02-19	573-637-5XXX	5000–5999	Assigned	BANDWIDTH.COM CLEC, LLC - MO	993E	LESTERVL	MO
2020-02-18	573-507-3XXX	3000–3999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MO	4932	COLUMBIA	MO
2020-02-18	573-854-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO	5814	POTOSI	MO
2020-02-06	573-713-7XXX	7000–7999	Assigned	METROPCS, INC.	5562	FARMINGTON	MO
2020-02-04	573-255-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - MO	993E	PONDER	MO
2020-02-04	573-656-1XXX	1000–1999	Assigned	BANDWIDTH.COM CLEC, LLC - MO	993E	OLNEY	MO
2020-02-04	573-899-6XXX	6000–6999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MO	6123	ST JAMES	MO
2020-02-04	573-937-6XXX	6000–6999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MO	6123	WAYNESVL	MO
2020-02-03	573-566-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - MO	993E	STOVER	MO
2020-01-31	573-507-7XXX	7000–7999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MO	7218	COLUMBIA	MO
2020-01-30	573-399-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - MO	993E	NAYLOR	MO
2020-01-30	573-669-9XXX	9000–9999	Assigned	BANDWIDTH.COM CLEC, LLC - MO	993E	NEW HARTFD	MO
2020-01-25	573-514-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO	5814	COLUMBIA	MO
2020-01-25	573-746-5XXX	5000–5999	Assigned	BANDWIDTH.COM CLEC, LLC - MO	993E	LKOZKOSBCH	MO
2020-01-25	573-894-6XXX	6000–6999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MO	6123	SHELBYVL	MO
2020-01-22	573-322-2XXX	2000–2999	Assigned	BANDWIDTH.COM CLEC, LLC - MO	993E	ELLSINORE	MO
2020-01-22	573-495-1XXX	1000–1999	Assigned	BANDWIDTH.COM CLEC, LLC - MO	993E	CLUBB	MO
2020-01-07	573-507-1XXX	1000–1999	Assigned	T-MOBILE USA, INC.	6529	COLUMBIA	MO
2020-01-07	573-507-2XXX	2000–2999	Assigned	T-MOBILE USA, INC.	6529	COLUMBIA	MO
2019-12-27	573-688-8XXX	8000–8999	Assigned	FRACTEL, LLC	965H	LILBOURN	MO
2019-12-20	573-505-2XXX	2000–2999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	GRAVOIS ML	MO
2019-12-20	573-505-3XXX	3000–3999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	GRAVOIS ML	MO
2019-12-18	573-530-1XXX	1000–1999	Assigned	TELNYX LLC	073H	COLUMBIA	MO
2019-12-17	573-733-6XXX	6000–6999	Assigned	BANDWIDTH.COM CLEC, LLC - MO	993E	BELL CITY	MO
2019-12-16	573-377-7XXX	7000–7999	Assigned	FRACTEL, LLC	965H	STOVER	MO
2019-12-16	573-389-6XXX	6000–6999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MO	6123	OAK RIDGE	MO
2019-12-16	573-577-7XXX	7000–7999	Assigned	FRACTEL, LLC	965H	HANNIBAL	MO
2019-12-13	573-255-5XXX	5000–5999	Assigned	FRACTEL, LLC	965H	PONDER	MO
2019-12-13	573-432-8XXX	8000–8999	Assigned	FRACTEL, LLC	965H	IRONTON	MO
2019-12-13	573-758-6XXX	6000–6999	Assigned	FRACTEL, LLC	965H	GRANDIN	MO
2019-12-13	573-955-5XXX	5000–5999	Assigned	FRACTEL, LLC	965H	BISMARCK	MO
2019-12-13	573-966-6XXX	6000–6999	Assigned	FRACTEL, LLC	965H	LEADWOOD	MO
2019-12-11	573-564-5XXX	5000–5999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - MO	6123	MONTGORYCY	MO
2019-12-05	573-255-9XXX	9000–9999	Assigned	WINDSTREAM MISSOURI, INC.	1885	PONDER	MO

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.