Recent thousands-block assignments

26 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 636

ONVOY, LLC - MO 24

EXIANT COMMUNICATIONS LLC 1

BANDWIDTH.COM CLEC, LLC - MO 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
2013-11-01	636-445-3XXX	3000–3999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO	7432	WENTZVILLE	MO
2013-11-01	636-484-7XXX	7000–7999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	MANCHESTER	MO
2013-11-01	636-565-9XXX	9000–9999	Assigned	IP HORIZON LLC	515J	DE SOTO	MO
2013-11-01	636-723-8XXX	8000–8999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	ST CHARLES	MO
2013-11-01	636-730-7XXX	7000–7999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	CHESTERFLD	MO
2013-11-01	636-730-9XXX	9000–9999	Assigned	IP HORIZON LLC	515J	CHESTERFLD	MO
2013-11-01	636-748-8XXX	8000–8999	Assigned	IP HORIZON LLC	515J	CEDAR HILL	MO
2013-10-30	636-432-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	WASHINGTON	MO
2013-10-28	636-775-3XXX	3000–3999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	TROY	MO
2013-10-02	636-633-3XXX	3000–3999	Assigned	T-MOBILE USA, INC.	6529	IMPERIAL	MO
2013-09-20	636-706-7XXX	7000–7999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	ST PETERS	MO
2013-09-18	636-775-7XXX	7000–7999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MO	4932	TROY	MO
2013-09-17	636-235-5XXX	5000–5999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	WARRENTON	MO
2013-09-17	636-264-7XXX	7000–7999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	WINFIELD	MO
2013-09-17	636-384-4XXX	4000–4999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	WRIGHTCITY	MO
2013-09-17	636-597-2XXX	2000–2999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MO	4932	TRUXTON	MO
2013-09-16	636-242-4XXX	4000–4999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	MARTHASVL	MO
2013-09-16	636-338-8XXX	8000–8999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MO	4932	HAWK POINT	MO
2013-09-16	636-355-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MO	4932	FOLEY	MO
2013-09-16	636-356-6XXX	6000–6999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MO	4932	MOSCOW ML	MO
2013-09-16	636-488-8XXX	8000–8999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	JONESBURG	MO
2013-09-16	636-585-3XXX	3000–3999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	HIGH HILL	MO
2013-09-16	636-661-3XXX	3000–3999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MO	4932	OLD MONROE	MO
2013-09-16	636-782-1XXX	1000–1999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MO	4932	HOLSTEIN	MO
2013-09-16	636-828-3XXX	3000–3999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MO	4932	NEW MELLE	MO
2013-09-13	636-482-7XXX	7000–7999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MO	4932	AUGUSTA	MO
2013-09-13	636-695-6XXX	6000–6999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	DARDENNE	MO
2013-09-13	636-987-5XXX	5000–5999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MO	4932	DEFIANCE	MO
2013-09-12	636-220-5XXX	5000–5999	Assigned	BANDWIDTH.COM CLEC, LLC - MO	993E	MANCHESTER	MO
2013-09-12	636-400-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - MO	993E	PORTAGSIUX	MO
2013-09-10	636-439-4XXX	4000–4999	Assigned	T-MOBILE USA, INC.	6529	OFALLON	MO
2013-08-26	636-686-5XXX	5000–5999	Assigned	AT&T ENTERPRISES, LLC	516C	MANCHESTER	MO
2013-08-23	636-321-8XXX	8000–8999	Assigned	CHARTER IP ENABLED SERVICES, LLC	792K	MAXVILLE	MO
2013-08-23	636-778-3XXX	3000–3999	Assigned	CHARTER IP ENABLED SERVICES, LLC	792K	CHESTERFLD	MO
2013-08-22	636-495-4XXX	4000–4999	Assigned	PAETEC ITEL, LLC	829J	HIGH RIDGE	MO
2013-08-19	636-688-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	ST CHARLES	MO
2013-08-19	636-697-0XXX	0000–0999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	ST PETERS	MO
2013-07-18	636-688-8XXX	8000–8999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MO	4932	ST CHARLES	MO
2013-07-05	636-445-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO	5814	WENTZVILLE	MO
2013-07-02	636-224-7XXX	7000–7999	Assigned	CHARTER IP ENABLED SERVICES, LLC	792K	HERCUMPVLY	MO
2013-06-24	636-529-8XXX	8000–8999	Assigned	CHARTER IP ENABLED SERVICES, LLC	792K	VALLEYPARK	MO
2013-06-21	636-283-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO	5814	WASHINGTON	MO
2013-06-21	636-590-7XXX	7000–7999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MO	4932	CHESTERFLD	MO
2013-06-19	636-220-1XXX	1000–1999	Assigned	CHARTER IP ENABLED SERVICES, LLC	792K	MANCHESTER	MO
2013-05-21	636-392-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	WASHINGTON	MO
2013-05-07	636-393-4XXX	4000–4999	Assigned	CHARTER IP ENABLED SERVICES, LLC	792K	PACIFIC	MO
2013-05-01	636-333-6XXX	6000–6999	Assigned	PEERLESS NETWORK OF MISSOURI, LLC - MO	225F	MAXVILLE	MO
2013-04-26	636-638-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO	5814	FSSCRSTLCY	MO
2013-04-18	636-362-5XXX	5000–5999	Assigned	SOUTHWESTERN BELL	9533	HARVESTER	MO
2013-04-15	636-579-4XXX	4000–4999	Assigned	T-MOBILE USA, INC.	6529	CHESTERFLD	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.