Recent thousands-block assignments

12 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 319

ONVOY, LLC - IA 6

T-MOBILE USA, INC. 2

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 2

BANDWIDTH.COM CLEC, LLC - IA 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
2016-03-09	319-519-4XXX	4000–4999	Assigned	ONVOY, LLC - IA	221F	IOWA CITY	IA
2016-03-09	319-559-3XXX	3000–3999	Assigned	ONVOY, LLC - IA	221F	WAVERLY	IA
2016-03-09	319-559-4XXX	4000–4999	Assigned	ONVOY, LLC - IA	221F	WAVERLY	IA
2016-03-09	319-849-6XXX	6000–6999	Assigned	ONVOY, LLC - IA	221F	CENTER PT	IA
2016-03-09	319-859-7XXX	7000–7999	Assigned	ONVOY, LLC - IA	221F	CEDARFALLS	IA
2016-03-09	319-859-8XXX	8000–8999	Assigned	ONVOY, LLC - IA	221F	CEDARFALLS	IA
2016-03-08	319-535-6XXX	6000–6999	Assigned	ONVOY, LLC - IA	221F	MT VERNON	IA
2016-03-08	319-895-3XXX	3000–3999	Assigned	ONVOY, LLC - IA	221F	MT VERNON	IA
2016-03-08	319-975-2XXX	2000–2999	Assigned	ONVOY, LLC - IA	221F	ANAMOSA	IA
2016-03-08	319-975-4XXX	4000–4999	Assigned	ONVOY, LLC - IA	221F	ANAMOSA	IA
2016-02-26	319-284-6XXX	6000–6999	Assigned	ONVOY, LLC - IA	221F	OELWEIN	IA
2016-02-26	319-284-8XXX	8000–8999	Assigned	ONVOY, LLC - IA	221F	OELWEIN	IA
2016-02-18	319-250-2XXX	2000–2999	Assigned	ONVOY, LLC - IA	221F	FT MADISON	IA
2016-02-18	319-250-7XXX	7000–7999	Assigned	ONVOY, LLC - IA	221F	FT MADISON	IA
2016-02-18	319-975-3XXX	3000–3999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	ANAMOSA	IA
2016-02-17	319-334-1XXX	1000–1999	Assigned	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	INDEPNDNCE	IA
2016-02-09	319-670-2XXX	2000–2999	Assigned	ONVOY, LLC - IA	221F	KEOKUK	IA
2016-02-09	319-670-3XXX	3000–3999	Assigned	ONVOY, LLC - IA	221F	KEOKUK	IA
2016-02-02	319-559-2XXX	2000–2999	Assigned	IMON COMMUNICATIONS, LLC - IA	695G	WAVERLY	IA
2016-01-20	319-800-3XXX	3000–3999	Assigned	UNITED STATES CELLULAR - IA	6266	IOWA CITY	IA
2015-12-09	319-320-1XXX	1000–1999	Assigned	ONVOY, LLC - IA	221F	CEDAR RPDS	IA
2015-12-09	319-320-4XXX	4000–4999	Assigned	ONVOY, LLC - IA	221F	CEDAR RPDS	IA
2015-12-02	319-775-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA	6570	CEDAR RPDS	IA
2015-12-01	319-327-7XXX	7000–7999	Assigned	UNITED STATES CELLULAR - IA	6266	INDEPNDNCE	IA
2015-11-24	319-859-5XXX	5000–5999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CEDARFALLS	IA
2015-11-23	319-591-2XXX	2000–2999	Assigned	AUREON COMMUNICATIONS, LLC	444G	WASHINGTON	IA
2015-11-03	319-596-4XXX	4000–4999	Assigned	AUREON COMMUNICATIONS, LLC	444G	WAVERLY	IA
2015-10-22	319-440-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA	6570	CEDAR RPDS	IA
2015-10-22	319-850-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA	6570	BURLINGTON	IA
2015-10-12	319-800-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA	6570	IOWA CITY	IA
2015-10-09	319-284-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA	6570	OELWEIN	IA
2015-10-05	319-320-2XXX	2000–2999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CEDAR RPDS	IA
2015-10-05	319-320-3XXX	3000–3999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CEDAR RPDS	IA
2015-10-05	319-349-6XXX	6000–6999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	WATERLOO	IA
2015-09-29	319-229-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA	6570	WATERLOO	IA
2015-09-28	319-670-6XXX	6000–6999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	KEOKUK	IA
2015-09-14	319-332-9XXX	9000–9999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA	6570	INDEPNDNCE	IA
2015-09-08	319-237-6XXX	6000–6999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	BURLINGTON	IA
2015-09-02	319-536-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CEDAR RPDS	IA
2015-09-01	319-512-5XXX	5000–5999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	IOWA CITY	IA
2015-09-01	319-512-6XXX	6000–6999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	IOWA CITY	IA
2015-08-25	319-449-4XXX	4000–4999	Assigned	MCC TELEPHONY LLC	593K	CEDAR RPDS	IA
2015-07-30	319-449-3XXX	3000–3999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - IA	9877	CEDAR RPDS	IA
2015-07-14	319-217-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA	6570	MTPLEASANT	IA
2015-06-30	319-382-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CEDAR RPDS	IA
2015-06-30	319-512-2XXX	2000–2999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	IOWA CITY	IA
2015-06-29	319-220-9XXX	9000–9999	Assigned	WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH	1167	CENTRAL CY	IA
2015-06-29	319-245-9XXX	9000–9999	Assigned	WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS	1170	GRUNDY CTR	IA
2015-06-29	319-344-9XXX	9000–9999	Assigned	WINDSTREAM IOWA COMMUNICATIONS, INC.	1178	COLUMBSJCT	IA
2015-06-29	319-552-9XXX	9000–9999	Assigned	WINDSTREAM IOWA COMMUNICATIONS, INC.	1178	MTPLEASANT	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.