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
— 508-951 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NEWBEDFORD MA
— 508-952 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → TC SYSTEMS, INC. 7135 NORTON MA
— 508-953 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 XXXXXXXXXX MA
— 508-954 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WRENTHAM MA
— 508-955 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → BANDWIDTH.COM CLEC, LLC - MA 990E CHILMARK MA
— 508-956 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 WORCESTER MA
— 508-957 2XXX3XXX · 2 holders which blocks → VERIZON NEW ENGLAND INC. 9102 HYANNIS MA
— 508-958 none assigned yet which blocks → METROPCS, INC. 5562 HOPKINTON MA
— 508-959 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX MA
— 508-960 1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MA 4018 NATICK MA
— 508-961 6XXX which blocks → VERIZON NEW ENGLAND INC. 9102 NEWBEDFORD MA
— 508-962 none assigned yet which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 FRAMINGHAM MA
— 508-964 0–9 XXXall 10 · 7 holders which blocks → BANDWIDTH.COM CLEC, LLC - MA 990E MANSFIELD MA
— 508-965 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NEWBEDFORD MA
— 508-966 6XXX7XXX8XXX · 3 holders which blocks → VERIZON NEW ENGLAND INC. 9102 BELLINGHAM MA
— 508-967 4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J TAUNTON MA
— 508-968 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 CATAUMET MA
— 508-969 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MA 4018 FRAMINGHAM MA
— 508-970 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J MARLBORO MA
— 508-971 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEWBEDFORD MA
— 508-972 0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NEWBEDFORD MA
— 508-974 1XXX2XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 FALL RIVER MA
— 508-975 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MA 4018 NATICK MA
— 508-976 not yet reported which blocks → MA
— 508-977 7XXX which blocks → VERIZON NEW ENGLAND INC. 9102 TAUNTON MA
— 508-979 0XXX6XXX9XXX which blocks → VERIZON NEW ENGLAND INC. 9102 NEWBEDFORD MA
— 508-980 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 7 holders which blocks → PAETEC ITEL, LLC 829J CHARLTON MA
— 508-981 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WORCESTER MA
— 508-982 none assigned yet which blocks → METROPCS, INC. 5562 LAWRENCE MA
— 508-983 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WESTBORO MA
— 508-984 9XXX which blocks → VERIZON NEW ENGLAND INC. 9102 NEWBEDFORD MA
— 508-985 3XXX6XXX7XXX8XXX · 4 holders which blocks → VERIZON NEW ENGLAND INC. 9102 NEWBEDFORD MA
— 508-986 8XXX9XXX which blocks → PAETEC ITEL, LLC 829J WESTBORO MA
— 508-987 4XXX which blocks → VERIZON NEW ENGLAND INC. 9102 OXFORD MA
— 508-988 0XXX5XXX8XXX · 2 holders which blocks → VERIZON NEW ENGLAND INC. 9102 FRAMINGHAM MA
— 508-990 5XXX which blocks → VERIZON NEW ENGLAND INC. 9102 NEWBEDFORD MA
— 508-991 none assigned yet which blocks → VERIZON NEW ENGLAND INC. 9102 NEWBEDFORD MA
— 508-992 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 NEWBEDFORD MA
— 508-993 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 NEWBEDFORD MA
— 508-994 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 NEWBEDFORD MA
— 508-995 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 NEWBEDFORD MA
— 508-996 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 NEWBEDFORD MA
— 508-997 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 NEWBEDFORD MA
— 508-998 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 NEWBEDFORD MA
— 508-999 not yet reported which blocks → VERIZON NEW ENGLAND INC. 9102 NEWBEDFORD MA
— 509-200 none assigned yet which blocks → T-MOBILE USA, INC. 6529 WALLAWALLA WA
— 509-201 1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → CHARTER IP ENABLED SERVICES, LLC 792K ELLENSBURG WA
— 509-202 0–9 XXXall 10 · 4 holders which blocks → NUSO, LLC 551G SPOKANE WA
— 509-210 not yet reported which blocks → ONVOY, LLC - WA 483E LIBERTY LK WA
— 509-211 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX WA

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.