NumberResearch Membership · Data 10/01/2026

Recent prefix assignments

374 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 10/01/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.

Most active assignees, last 30 days
Rogers Communications Canada Inc. (Wireless) 46
8X8, INC. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 28
NEW CINGULAR WIRELESS PCS, LLC - IL 23
ONVOY, LLC - CA 19
New assignments by month Oct 2026 Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025
Download CSV ↓
Quick find in this area code:
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
— 508-469 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J CHATHAM MA
— 508-470 1XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - MA 990E DENNIS MA
— 508-471 0XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J WORCESTER MA
— 508-472 0XXX which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 WALPOLE MA
— 508-473 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 MILFORD MA
— 508-474 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J HOLLISTON MA
— 508-475 0XXX1XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → VERIZON NEW ENGLAND INC. 9102 WESTBORO MA
— 508-476 0XXX5XXX6XXX8XXX · 4 holders which blocks → VERIZON NEW ENGLAND INC. 9102 E DOUGLAS MA
— 508-477 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 OSTERVILLE MA
— 508-478 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 MILFORD MA
— 508-479 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 DOVER MA
— 508-480 5XXX which blocks → VERIZON NEW ENGLAND INC. 9102 MARLBORO MA
— 508-481 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 MARLBORO MA
— 508-482 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 MILFORD MA
— 508-483 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 FRAMINGHAM MA
— 508-484 3XXX5XXX8XXX · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BROCKTON MA
— 508-485 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 MARLBORO MA
— 508-486 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 MARLBORO MA
— 508-487 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 PROVINCETN MA
— 508-488 0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J MILFORD MA
— 508-489 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 FRAMINGHAM MA
— 508-490 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 MARLBORO MA
— 508-491 1XXX9XXX · 2 holders which blocks → VERIZON NEW ENGLAND INC. 9102 FALL RIVER MA
— 508-492 4XXX7XXX8XXX9XXX · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - MA 990E WALPOLE MA
— 508-493 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FALL RIVER MA
— 508-494 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRAMINGHAM MA
— 508-495 3XXX which blocks → VERIZON NEW ENGLAND INC. 9102 FALMOUTH MA
— 508-496 not yet reported which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 FALL RIVER MA
— 508-497 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 HOPKINTON MA
— 508-498 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MILFORD MA
— 508-500 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MA 4018 MARION MA
— 508-501 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → TC SYSTEMS, INC. 7135 NEWBEDFORD MA
— 508-503 1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MA 4018 PLYMOUTH MA
— 508-505 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WALPOLE MA
— 508-509 none assigned yet which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 ROCHESTER MA
— 508-510 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → RCN TELECOM SERVICES, INC. - MA 7619 BROCKTON MA
— 508-511 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX MA
— 508-512 not yet reported which blocks → MA
— 508-513 5XXX7XXX8XXX9XXX · 3 holders which blocks → TC SYSTEMS, INC. 7135 BROCKTON MA
— 508-514 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J WELLFLEET MA
— 508-515 not yet reported which blocks → MA
— 508-516 not yet reported which blocks → MA
— 508-517 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WESTFORD MA
— 508-518 not yet reported which blocks → TC SYSTEMS, INC. 7135 FRAMINGHAM MA
— 508-519 3XXX9XXX · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WORCESTER MA
— 508-520 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 FRANKLIN MA
— 508-521 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J BROCKTON MA
— 508-522 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 FRAMINGHAM MA
— 508-523 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 SHREWSBURY MA
— 508-524 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FALMOUTH MA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 10/01/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.