Recent thousands-block assignments

14 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 413

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6

BANDWIDTH.COM CLEC, LLC - MA 5

NEW CINGULAR WIRELESS PCS, LLC - DC 1

MCIMETRO ACCESS TRANSMISSION SERVICES LLC 1

AHOI 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
2011-04-05	413-875-2XXX	2000–2999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	WESTFIELD	MA
2011-03-24	413-341-7XXX	7000–7999	Assigned	METROPCS, INC.	5562	NORTHAMPTN	MA
2011-03-21	413-400-0XXX	0000–0999	Assigned	BANDWIDTH.COM CLEC, LLC - MA	990E	MONTAGUE	MA
2011-03-14	413-345-4XXX	4000–4999	Assigned	METROPCS, INC.	5562	AMHERST	MA
2011-03-14	413-355-8XXX	8000–8999	Assigned	METROPCS, INC.	5562	SPRINGFLD	MA
2011-03-14	413-355-9XXX	9000–9999	Assigned	METROPCS, INC.	5562	SPRINGFLD	MA
2011-03-14	413-504-2XXX	2000–2999	Assigned	METROPCS, INC.	5562	SPRINGFLD	MA
2011-03-14	413-504-8XXX	8000–8999	Assigned	METROPCS, INC.	5562	SPRINGFLD	MA
2011-03-14	413-504-9XXX	9000–9999	Assigned	METROPCS, INC.	5562	SPRINGFLD	MA
2011-03-03	413-344-3XXX	3000–3999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	PITTSFIELD	MA
2011-02-28	413-224-7XXX	7000–7999	Assigned	PAETEC ITEL, LLC	829J	ELONGMEDOW	MA
2011-02-28	413-388-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	CHICOPEE	MA
2011-02-14	413-271-5XXX	5000–5999	Assigned	BANDWIDTH.COM CLEC, LLC - MA	990E	SPRINGFLD	MA
2011-02-14	413-271-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - MA	990E	SPRINGFLD	MA
2011-02-14	413-273-6XXX	6000–6999	Assigned	BANDWIDTH.COM CLEC, LLC - MA	990E	SPRINGFLD	MA
2011-02-14	413-273-7XXX	7000–7999	Assigned	BANDWIDTH.COM CLEC, LLC - MA	990E	SPRINGFLD	MA
2011-02-11	413-367-8XXX	8000–8999	Assigned	BANDWIDTH.COM CLEC, LLC - MA	990E	MONTAGUE	MA
2011-02-10	413-726-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	SPRINGFLD	MA
2011-02-02	413-285-7XXX	7000–7999	Assigned	COMCAST IP PHONE, LLC	318J	SPRINGFLD	MA
2011-02-02	413-285-8XXX	8000–8999	Assigned	COMCAST IP PHONE, LLC	318J	SPRINGFLD	MA
2011-01-31	413-385-3XXX	3000–3999	Assigned	PAETEC ITEL, LLC	829J	LUDLOW	MA
2011-01-14	413-206-8XXX	8000–8999	Assigned	OMNIPOINT MIAMI E LICENSE, LLC	6889	CHICOPEE	MA
2011-01-10	413-241-5XXX	5000–5999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	SPRINGFLD	MA
2011-01-06	413-526-3XXX	3000–3999	Assigned	RINGSQUARED TELECOM LLC	311D	ELONGMEDOW	MA
2010-12-08	413-289-4XXX	4000–4999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	PALMER	MA
2010-12-03	413-654-7XXX	7000–7999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	SPRINGFLD	MA
2010-11-24	413-344-1XXX	1000–1999	Assigned	RINGSQUARED TELECOM LLC	311D	PITTSFIELD	MA
2010-11-17	413-314-6XXX	6000–6999	Assigned	PAETEC ITEL, LLC	829J	SPRINGFLD	MA
2010-11-09	413-355-2XXX	2000–2999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	SPRINGFLD	MA
2010-11-09	413-355-3XXX	3000–3999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	SPRINGFLD	MA
2010-11-09	413-355-4XXX	4000–4999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	SPRINGFLD	MA
2010-11-03	413-356-0XXX	0000–0999	Assigned	OMNIPOINT MIAMI E LICENSE, LLC	6889	CHICOPEE	MA
2010-10-26	413-418-3XXX	3000–3999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - MA	4018	PITTSFIELD	MA
2010-10-18	413-206-6XXX	6000–6999	Assigned	BANDWIDTH.COM CLEC, LLC - MA	990E	CHICOPEE	MA
2010-10-18	413-588-3XXX	3000–3999	Assigned	RINGSQUARED TELECOM LLC	311D	NORTHAMPTN	MA
2010-10-14	413-336-6XXX	6000–6999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	AMHRSTFKLN	MA
2010-10-14	413-336-9XXX	9000–9999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	AMHRSTFKLN	MA
2010-10-12	413-300-0XXX	0000–0999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	DALTON	MA
2010-10-05	413-248-1XXX	1000–1999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	SHEFFIELD	MA
2010-10-05	413-394-5XXX	5000–5999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	LEE	MA
2010-10-05	413-398-5XXX	5000–5999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	NORTHADAMS	MA
2010-10-05	413-458-6XXX	6000–6999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	WILLIAMSTN	MA
2010-10-05	413-645-3XXX	3000–3999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	GREATBNGTN	MA
2010-10-05	413-749-7XXX	7000–7999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	ADAMS	MA
2010-10-05	413-881-4XXX	4000–4999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	LENOX	MA
2010-10-04	413-344-4XXX	4000–4999	Assigned	TWC IP ENABLED SERVICES, LLC	793K	PITTSFIELD	MA
2010-09-22	413-203-9XXX	9000–9999	Assigned	BANDWIDTH.COM CLEC, LLC - MA	990E	EASTHAMPTN	MA
2010-09-22	413-398-3XXX	3000–3999	Assigned	BANDWIDTH.COM CLEC, LLC - MA	990E	NORTHADAMS	MA
2010-09-20	413-875-5XXX	5000–5999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	WESTFIELD	MA
2010-09-15	413-923-1XXX	1000–1999	Assigned	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	NORTHAMPTN	MA

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.