Recent thousands-block assignments

16 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 563

ONVOY, LLC - IA 8

IMON COMMUNICATIONS, LLC - IA 3

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 3

NEW CINGULAR WIRELESS PCS, LLC - IL 1

LEVEL 3 COMMUNICATIONS, LLC - IA 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
2010-03-05	563-744-2XXX	2000–2999	Assigned	MCC TELEPHONY OF IOWA, LLC - IA	751F	FARLEY	IA
2010-03-05	563-785-2XXX	2000–2999	Assigned	MCC TELEPHONY OF IOWA, LLC - IA	751F	DURANT	IA
2010-03-05	563-845-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA	6570	DUBUQUE	IA
2010-03-05	563-875-0XXX	0000–0999	Assigned	MCC TELEPHONY OF IOWA, LLC - IA	751F	DYERSVILLE	IA
2010-03-05	563-876-0XXX	0000–0999	Assigned	MCC TELEPHONY OF IOWA, LLC - IA	751F	EPWORTH	IA
2010-03-05	563-886-5XXX	5000–5999	Assigned	MCC TELEPHONY OF IOWA, LLC - IA	751F	TIPTON	IA
2010-03-04	563-219-8XXX	8000–8999	Assigned	MCC TELEPHONY OF IOWA, LLC - IA	751F	CLINTON	IA
2010-03-04	563-223-9XXX	9000–9999	Assigned	MCC TELEPHONY OF IOWA, LLC - IA	751F	ELDRIDGE	IA
2010-03-04	563-284-0XXX	0000–0999	Assigned	MCC TELEPHONY OF IOWA, LLC - IA	751F	WALCOTT	IA
2010-03-04	563-486-0XXX	0000–0999	Assigned	MCC TELEPHONY OF IOWA, LLC - IA	751F	OXFORD JCT	IA
2010-03-04	563-748-0XXX	0000–0999	Assigned	MCC TELEPHONY OF IOWA, LLC - IA	751F	MAQUOKETA	IA
2010-03-04	563-845-0XXX	0000–0999	Assigned	MCC TELEPHONY OF IOWA, LLC - IA	751F	DUBUQUE	IA
2010-02-16	563-424-2XXX	2000–2999	Assigned	MCC TELEPHONY OF IOWA, LLC - IA	751F	DAVENPORT	IA
2010-02-16	563-822-1XXX	1000–1999	Assigned	MCC TELEPHONY LLC	593K	MANCHESTER	IA
2010-02-12	563-447-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - IA	985E	WALCOTT	IA
2010-02-12	563-484-4XXX	4000–4999	Assigned	BANDWIDTH.COM CLEC, LLC - IA	985E	DAVENPORT	IA
2010-02-08	563-272-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA	6570	MUSCATINE	IA
2010-02-08	563-321-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA	6570	CLINTON	IA
2010-02-08	563-723-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA	6570	DAVENPORT	IA
2010-02-08	563-723-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA	6570	DAVENPORT	IA
2010-01-14	563-275-1XXX	1000–1999	Assigned	WINDSTREAM IT-COMM, LLC - IA	938D	DAVENPORT	IA
2009-12-08	563-549-6XXX	6000–6999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - IA	8344	DAVENPORT	IA
2009-11-24	563-265-6XXX	6000–6999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - IA	9877	DAVENPORT	IA
2009-11-20	563-587-8XXX	8000–8999	Assigned	CS TECHNOLOGIES, INC. - IA	204A	DUBUQUE	IA
2009-10-26	563-217-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - IA	9877	WAUKON	IA
2009-09-04	563-554-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA	6570	MUSCATINE	IA
2009-09-04	563-726-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA	6570	DAVENPORT	IA
2009-08-27	563-484-5XXX	5000–5999	Assigned	PAETEC ITEL, LLC	829J	DAVENPORT	IA
2009-08-07	563-321-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA	6570	CLINTON	IA
2009-06-09	563-213-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA	6570	DUBUQUE	IA
2009-06-08	563-726-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA	6570	DAVENPORT	IA
2009-04-13	563-845-5XXX	5000–5999	Assigned	AT&T - LOCAL	7421	DUBUQUE	IA
2009-02-17	563-663-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	DUBUQUE	IA
2009-02-05	563-726-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA	6570	DAVENPORT	IA
2009-01-08	563-329-0XXX	0000–0999	Assigned	UNITED STATES CELLULAR - IA	6266	MCGREGOR	IA
2009-01-06	563-381-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	DAVENPORT	IA
2009-01-06	563-794-1XXX	1000–1999	Assigned	UNITED STATES CELLULAR - IA	6266	WAUKON	IA
2008-12-16	563-564-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA	6570	DUBUQUE	IA
2008-11-07	563-468-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA	6570	DAVENPORT	IA
2008-10-30	563-223-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - IA	985E	ELDRIDGE	IA
2008-10-30	563-289-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - IA	985E	LE CLAIRE	IA
2008-10-30	563-447-0XXX	0000–0999	Assigned	BANDWIDTH.COM CLEC, LLC - IA	985E	WALCOTT	IA
2008-10-03	563-209-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	DAVENPORT	IA
2008-09-09	563-639-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	DAVENPORT	IA
2008-09-08	563-449-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA	6570	DAVENPORT	IA
2008-08-27	563-209-6XXX	6000–6999	Assigned	T-MOBILE USA, INC.	6529	DAVENPORT	IA
2008-08-22	563-518-6XXX	6000–6999	Assigned	ONVOY, LLC - IA	221F	WEST UNION	IA
2008-08-14	563-613-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	LOW MOOR	IA
2008-08-05	563-284-7XXX	7000–7999	Assigned	ONVOY, LLC - IA	221F	WALCOTT	IA
2008-08-05	563-538-7XXX	7000–7999	Assigned	ONVOY, LLC - IA	221F	LANSING	IA

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.