NumberResearch Membership · Data 09/23/2026

Recent prefix assignments

357 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/23/2026

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. 39
NEW CINGULAR WIRELESS PCS, LLC - IL 28
ONVOY, LLC - CA 27
NEW CINGULAR WIRELESS PCS, LLC - DC 27
ONVOY, LLC - NJ 20
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
Download CSV ↓
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2002-03-21 559-759 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → METROPCS, INC. 5562 TULARE CA
2002-03-21 559-817 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → METROPCS, INC. 5562 LEMOORE CA
2002-03-21 559-869 0–9 XXXall 10 · 8 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - CA 8826 KINGSBURG CA
2002-03-21 614-808 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OH 4863 GROVE CITY OH
2002-03-21 619-675 0XXX7XXX8XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 CORONADO CA
2002-03-21 704-466 0XXX1XXX2XXX3XXX4XXX5XXX6XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SHELBY NC
2002-03-21 707-761 1XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 VACAVILLE CA
2002-03-21 707-803 5XXX6XXX7XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 FRFLD-SUIS CA
2002-03-21 707-813 2XXX3XXX4XXX5XXX6XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 FORT BRAGG CA
2002-03-21 714-756 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 HUNTITNBCH CA
2002-03-21 732-874 4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WOODBRIDGE NJ
2002-03-21 740-314 0XXX1XXX2XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OH 4863 STEUBENVL OH
2002-03-21 740-617 0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OH 4863 ZANESVILLE OH
2002-03-21 760-684 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - CA 8826 VICTORVL CA
2002-03-21 765-575 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 NEW CASTLE IN
2002-03-21 803-389 0XXX1XXX2XXX3XXX4XXX5XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ROCK HILL SC
2002-03-21 805-766 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 VNTRA EAST CA
2002-03-21 814-202 none assigned yet which blocks → PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E WARREN PA
2002-03-21 814-216 0XXX1XXX · 2 holders which blocks → PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E EBENSBURG PA
2002-03-21 814-391 none assigned yet which blocks → PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E BARNESBORO PA
2002-03-21 814-394 9XXX which blocks → PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E COUDERSPT PA
2002-03-21 814-530 none assigned yet which blocks → ONVOY, LLC - PA 547E SOMERSET PA
2002-03-21 814-604 none assigned yet which blocks → PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E KANE PA
2002-03-21 814-794 none assigned yet which blocks → PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E MAHAFFEY PA
2002-03-21 814-805 none assigned yet which blocks → PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E PHILIPSBG PA
2002-03-21 814-828 0XXX1XXX3XXX8XXX9XXX · 2 holders which blocks → PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E CLARION PA
2002-03-21 814-858 0XXX9XXX · 2 holders which blocks → PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E DUBOIS PA
2002-03-21 814-905 none assigned yet which blocks → PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E HUNTINGDON PA
2002-03-21 814-921 none assigned yet which blocks → PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E PUNXSUTWNY PA
2002-03-21 864-593 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENVILLE SC
2002-03-21 973-919 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 NEWTON NJ
2002-03-21 973-933 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 7 holders which blocks → MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 MT FREEDOM NJ
2002-03-20 234-244 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 CORTLAND OH
2002-03-20 234-248 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → T-MOBILE USA, INC. 6529 SHARON CTR OH
2002-03-20 234-369 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 MANCHESTR OH
2002-03-20 234-380 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → T-MOBILE USA, INC. 6529 HUDSON OH
2002-03-20 234-650 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 MASSILLON OH
2002-03-20 234-759 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → T-MOBILE USA, INC. 6529 NORTH LIMA OH
2002-03-20 312-525 0XXX1XXX which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CHICGOZN01 IL
2002-03-20 330-356 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 ALLIANCE OH
2002-03-20 330-389 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 RAVENNA OH
2002-03-20 330-391 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 MEDINA OH
2002-03-20 330-412 5XXX6XXX7XXX8XXX which blocks → T-MOBILE USA, INC. 6529 CANTON OH
2002-03-20 330-619 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → T-MOBILE USA, INC. 6529 SHARON OH
2002-03-20 330-766 4XXX5XXX6XXX7XXX8XXX which blocks → T-MOBILE USA, INC. 6529 WARREN OH
2002-03-20 330-881 not yet reported which blocks → T-MOBILE USA, INC. 6529 YOUNGSTOWN OH
2002-03-20 330-990 not yet reported which blocks → T-MOBILE USA, INC. 6529 AKRON OH
2002-03-20 418-333 not yet reported which blocks → Bell Mobility 6574 Thetford Mines —
2002-03-20 418-518 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 St-Felicien —
2002-03-20 440-231 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → T-MOBILE USA, INC. 6529 PAINESVL OH

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/23/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.