NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

355 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

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
8X8, INC. 38
ONVOY, LLC - CA 31
NEW CINGULAR WIRELESS PCS, LLC - IL 28
NEW CINGULAR WIRELESS PCS, LLC - DC 26
ONVOY, LLC - NJ 18
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 NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2002-07-29 774-489 0XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F UPTON MA
2002-07-29 774-745 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MA 4018 SPENCER MA
2002-07-29 774-847 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WRENTHAM MA
2002-07-29 774-854 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MA 4018 MEDWAY MA
2002-07-29 774-901 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MA 4018 SEEKONK MA
2002-07-29 812-657 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 COLUMBUS IN
2002-07-29 819-570 not yet reported which blocks → Bell Mobility 6574 Sherbrooke —
2002-07-29 856-558 4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 VINELAND NJ
2002-07-29 856-562 5XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WILLIAMSTN NJ
2002-07-29 937-576 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → LEVEL 3 TELECOM OF OHIO, LLC - OH 7460 VANDALIA OH
2002-07-29 989-398 1XXX7XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 ELSIE MI
2002-07-29 989-472 0–9 XXXall 10 · 7 holders which blocks → 123.NET, LLC 2550 OWOSSO MI
2002-07-29 989-481 1XXX2XXX3XXX4XXX5XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 BRECKENRDG MI
2002-07-29 989-533 1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 ALMA MI
2002-07-29 989-567 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 SHEPHERD MI
2002-07-29 989-715 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 MERRILL MI
2002-07-29 989-932 6XXX7XXX8XXX · 3 holders which blocks → LENNON TELEPHONE COMPANY - MI 599H DURAND MI
2002-07-26 229-328 4XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CAMILLA GA
2002-07-26 270-873 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - KY 4369 MURRAY KY
2002-07-26 270-874 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - KY 4369 HOPKINSVL KY
2002-07-26 270-875 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - KY 4369 MADISONVL KY
2002-07-26 352-547 0XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J OCALA FL
2002-07-26 352-553 0–9 XXXall 10 · 3 holders which blocks → METROPCS, INC. 5562 BELLEVIEW FL
2002-07-26 434-247 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 SOUTH HILL VA
2002-07-26 502-233 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - KY 4369 BARDSTOWN KY
2002-07-26 646-997 0–9 XXXwhole prefix which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN01 NY
2002-07-26 706-299 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 JASPER GA
2002-07-26 731-334 5XXX6XXX7XXX8XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DYERSBURG TN
2002-07-26 731-335 5XXX6XXX7XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 UNION CITY TN
2002-07-26 757-927 not yet reported which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NWPTNWSZN2 VA
2002-07-26 804-283 8XXX9XXX which blocks → METROPCS, INC. 5562 RICHMOND VA
2002-07-26 973-600 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 NEWTON NJ
2002-07-25 219-204 3XXX5XXX6XXX7XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 FRANCESVL IN
2002-07-25 219-207 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 REYNOLDS IN
2002-07-25 219-208 3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 REMINGTON IN
2002-07-25 330-460 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OH 4863 BRUNSWICK OH
2002-07-25 414-661 not yet reported which blocks → WISCONSIN BELL INC 9327 MILWAUKZN5 WI
2002-07-25 419-650 2XXX4XXX · 2 holders which blocks → T-MOBILE USA, INC. 6529 CLYDE OH
2002-07-25 503-298 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OR 3234 ASTORIA OR
2002-07-25 516-661 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN05 NY
2002-07-25 574-242 3XXX4XXX6XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 WINAMAC IN
2002-07-25 715-891 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 EAGLERIVER WI
2002-07-25 715-892 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MINOCQUA WI
2002-07-25 765-256 3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 BLOUNTSVL IN
2002-07-25 765-625 4XXX5XXX6XXX8XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 FARMLAND IN
2002-07-25 765-745 2XXX7XXX8XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 MORRISTOWN IN
2002-07-25 804-246 0XXX3XXX4XXX5XXX7XXX which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 TAPPAHNNCK VA
2002-07-25 920-569 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J GREEN BAY WI
2002-07-24 208-821 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID 6565 IDAHOFALLS ID
2002-07-24 219-816 6XXX7XXX8XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 SAN PIERRE IN

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.