NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

7 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 508
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 4
PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 1
OMNIPOINT MIAMI E LICENSE, 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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2005-08-25 508-244-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 MILFORD MA
2005-08-25 508-815-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 HYANNIS MA
2005-08-24 508-322-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WAREHAM MA
2005-08-24 508-925-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 SHREWSBURY MA
2005-08-19 508-250-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 FRAMINGHAM MA
2005-08-16 508-386-5XXX 5000–5999Assigned METROPCS, INC. 5562 TAUNTON MA
2005-08-08 508-581-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J MILLBURY MA
2005-07-25 508-802-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J TAUNTON MA
2005-07-20 508-463-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ATTLEBORO MA
2005-07-20 508-463-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D ATTLEBORO MA
2005-07-20 508-463-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ATTLEBORO MA
2005-07-20 508-803-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 FRANKLIN MA
2005-07-20 508-803-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 FRANKLIN MA
2005-07-18 508-215-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 FRAMINGHAM MA
2005-07-18 508-315-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 NATICK MA
2005-07-13 508-471-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WORCESTER MA
2005-07-13 508-471-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WORCESTER MA
2005-07-13 508-471-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WORCESTER MA
2005-07-12 508-242-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J MEDFIELD MA
2005-07-08 508-717-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NEWBEDFORD MA
2005-07-08 508-742-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NEWBEDFORD MA
2005-07-08 508-742-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NEWBEDFORD MA
2005-07-08 508-742-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NEWBEDFORD MA
2005-07-08 508-785-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 DOVER MA
2005-07-06 508-216-7XXX 7000–7999Assigned ONVOY, LLC - MA 892D FOXBORO MA
2005-07-06 508-216-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D FOXBORO MA
2005-07-06 508-276-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WAYLAND MA
2005-07-06 508-401-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WAYLAND MA
2005-07-06 508-401-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D WAYLAND MA
2005-07-06 508-401-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WAYLAND MA
2005-07-06 508-418-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HYANNIS MA
2005-07-06 508-458-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MILFORD MA
2005-07-06 508-458-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MILFORD MA
2005-07-06 508-458-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D MILFORD MA
2005-07-06 508-458-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MILFORD MA
2005-07-06 508-536-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 FALL RIVER MA
2005-07-06 508-568-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HYANNIS MA
2005-07-06 508-568-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D HYANNIS MA
2005-07-06 508-597-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MARLBORO MA
2005-07-06 508-597-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MARLBORO MA
2005-07-06 508-597-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MARLBORO MA
2005-07-06 508-597-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MARLBORO MA
2005-07-06 508-597-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MARLBORO MA
2005-07-06 508-637-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NOBROOKFLD MA
2005-07-06 508-637-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NOBROOKFLD MA
2005-07-06 508-637-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NOBROOKFLD MA
2005-07-06 508-730-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 FALL RIVER MA
2005-07-06 508-772-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 FOXBORO MA
2005-07-06 508-927-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PLYMOUTH MA
2005-07-06 508-974-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D FALL RIVER MA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.