Recent thousands-block assignments

7 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 509

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 3

NEW CINGULAR WIRELESS PCS, LLC 2

EXIANT COMMUNICATIONS LLC 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
2009-03-13	509-850-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA	5812	SPOKANE	WA
2009-03-13	509-850-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA	5812	SPOKANE	WA
2009-03-13	509-850-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA	5812	SPOKANE	WA
2009-02-25	509-396-3XXX	3000–3999	Assigned	CHARTER IP ENABLED SERVICES, LLC	792K	KENNEWICK	WA
2009-02-09	509-731-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	YAKIMA	WA
2009-02-05	509-987-8XXX	8000–8999	Assigned	T-MOBILE USA, INC.	6529	KENNEWICK	WA
2009-01-30	509-728-9XXX	9000–9999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - WA	6121	YAKIMA	WA
2009-01-29	509-987-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	KENNEWICK	WA
2009-01-23	509-731-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA	5812	YAKIMA	WA
2009-01-23	509-731-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA	5812	YAKIMA	WA
2009-01-23	509-885-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA	5812	WENATCHEE	WA
2009-01-21	509-315-1XXX	1000–1999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - WA	6121	SPOKANE	WA
2009-01-21	509-850-1XXX	1000–1999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	SPOKANE	WA
2009-01-21	509-850-2XXX	2000–2999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	SPOKANE	WA
2009-01-21	509-850-3XXX	3000–3999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - WA	6121	SPOKANE	WA
2009-01-21	509-987-6XXX	6000–6999	Assigned	T-MOBILE USA, INC.	6529	KENNEWICK	WA
2009-01-05	509-416-6XXX	6000–6999	Assigned	BANDWIDTH.COM CLEC, LLC - WA	006F	PASCO	WA
2009-01-05	509-433-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - WA	006F	WENATCHEE	WA
2009-01-05	509-713-2XXX	2000–2999	Assigned	BANDWIDTH.COM CLEC, LLC - WA	006F	RICHLAND	WA
2009-01-05	509-720-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - WA	006F	SPOKANE	WA
2009-01-05	509-720-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - WA	006F	SPOKANE	WA
2009-01-05	509-730-5XXX	5000–5999	Assigned	BANDWIDTH.COM CLEC, LLC - WA	006F	WALLAWALLA	WA
2009-01-05	509-731-3XXX	3000–3999	Assigned	BANDWIDTH.COM CLEC, LLC - WA	006F	YAKIMA	WA
2009-01-05	509-731-4XXX	4000–4999	Assigned	BANDWIDTH.COM CLEC, LLC - WA	006F	YAKIMA	WA
2009-01-05	509-987-5XXX	5000–5999	Assigned	BANDWIDTH.COM CLEC, LLC - WA	006F	KENNEWICK	WA
2008-12-11	509-222-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA	5812	KENNEWICK	WA
2008-12-11	509-720-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA	5812	SPOKANE	WA
2008-12-11	509-720-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA	5812	SPOKANE	WA
2008-12-11	509-720-6XXX	6000–6999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA	5812	SPOKANE	WA
2008-11-26	509-315-8XXX	8000–8999	Assigned	COMCAST IP PHONE, LLC	318J	SPOKANE	WA
2008-11-26	509-315-9XXX	9000–9999	Assigned	COMCAST IP PHONE, LLC	318J	SPOKANE	WA
2008-11-25	509-237-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	EPHRATA	WA
2008-11-19	509-540-8XXX	8000–8999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA	5812	WALLAWALLA	WA
2008-11-10	509-433-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	WENATCHEE	WA
2008-11-10	509-731-1XXX	1000–1999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	YAKIMA	WA
2008-11-10	509-731-2XXX	2000–2999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	YAKIMA	WA
2008-11-06	509-315-6XXX	6000–6999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	SPOKANE	WA
2008-11-06	509-315-7XXX	7000–7999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	SPOKANE	WA
2008-10-31	509-295-8XXX	8000–8999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - WA	6121	CLARKSTON	WA
2008-10-23	509-731-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA	5812	YAKIMA	WA
2008-10-20	509-254-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA	5812	CLARKSTON	WA
2008-10-20	509-823-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA	5812	YAKIMA	WA
2008-10-20	509-885-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA	5812	WENATCHEE	WA
2008-10-20	509-885-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA	5812	WENATCHEE	WA
2008-10-16	509-720-5XXX	5000–5999	Assigned	LEVEL 3 TELECOM OF WASHINGTON, LLC - WA	7455	SPOKANE	WA
2008-10-13	509-207-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	REPUBLIC	WA
2008-10-13	509-341-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	TWISP	WA
2008-10-13	509-557-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	OMAK	WA
2008-10-13	509-560-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	OROVILLE	WA
2008-10-09	509-591-8XXX	8000–8999	Assigned	NEW CINGULAR WIRELESS PCS, LLC	6010	KENNEWICK	WA

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.