NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

4 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 978
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 2
EXIANT COMMUNICATIONS LLC 1
BANDWIDTH.COM CLEC, LLC - MA 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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2004-09-13 978-225-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J NEWBURYPT MA
2004-09-07 978-257-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 BARRE MA
2004-09-02 978-467-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WESTFORD MA
2004-08-31 978-236-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BEVERLY MA
2004-08-31 978-299-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BEVERLY MA
2004-08-31 978-299-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BEVERLY MA
2004-08-27 978-642-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WILMINGTON MA
2004-08-26 978-202-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J CONCORD MA
2004-08-26 978-230-2XXX 2000–2999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 LEOMINSTER MA
2004-08-26 978-420-5XXX 5000–5999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 HAVERHILL MA
2004-08-26 978-569-0XXX 0000–0999Assigned METROPCS, INC. 5562 LOWELL MA
2004-08-18 978-353-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 FITCHBURG MA
2004-08-16 978-219-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J SALEM MA
2004-08-09 978-297-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WINCHENDON MA
2004-08-06 978-261-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 SUDBURY MA
2004-08-06 978-293-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 HUDSON MA
2004-08-06 978-309-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 ROCKPORT MA
2004-08-06 978-357-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 NO READING MA
2004-08-06 978-384-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 MERRIMAC MA
2004-08-06 978-401-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 LEOMINSTER MA
2004-08-06 978-412-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 IPSWICH MA
2004-08-06 978-425-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 SHIRLEY MA
2004-08-06 978-456-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 HARVARD MA
2004-08-06 978-481-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 PRINCETON MA
2004-08-06 978-518-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 NEWBURYPT MA
2004-08-06 978-558-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 BOLTON MA
2004-08-06 978-582-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 LUNENBURG MA
2004-08-06 978-598-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 CLINTON MA
2004-08-06 978-633-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 ORANGE MA
2004-08-06 978-801-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 ESSEX MA
2004-08-06 978-820-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 HUBBARDSTN MA
2004-08-06 978-874-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WESTMINSTR MA
2004-08-06 978-903-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 ROWLEY MA
2004-08-06 978-925-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 PEPPERELL MA
2004-08-05 978-252-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 ASHBURNHAM MA
2004-08-05 978-378-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 AMESBURY MA
2004-08-05 978-386-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 ASHBY MA
2004-08-05 978-574-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 ATHOLFKLN MA
2004-08-05 978-636-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 BARRE MA
2004-08-05 978-838-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 BERLIN MA
2004-08-04 978-270-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NEWBURYPT MA
2004-08-04 978-987-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 BILLERICA MA
2004-07-07 978-339-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 LITTLETON MA
2004-07-07 978-500-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 IPSWICH MA
2004-07-07 978-505-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 CONCORD MA
2004-07-07 978-578-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 BEVERLY MA
2004-07-07 978-844-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 ACTON MA
2004-07-07 978-855-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 FITCHBURG MA
2004-07-07 978-870-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 LEOMINSTER MA
2004-07-07 978-877-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 GROTON 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.