NumberResearch Membership · Data 09/21/2026

Recent prefix assignments

338 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/21/2026

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
NEW CINGULAR WIRELESS PCS, LLC - IL 28
ONVOY, LLC - CA 26
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
2003-02-21 705-854 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 West Guilford —
2003-02-21 712-215 0–9 XXXall 10 · 5 holders which blocks → UNITED STATES CELLULAR - IA 6266 SHENANDOAH IA
2003-02-21 712-285 not yet reported which blocks → NORTHWEST IOWA TELEPHONE, LLC 1260 SERGENTBLF IA
2003-02-21 810-991 0–9 XXXall 10 · 8 holders which blocks → 123.NET, LLC 2550 HARTLAND MI
2003-02-21 859-779 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 2 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 RICHMOND KY
2003-02-21 867-765 not yet reported which blocks → Northwestel 8092 Yellowknife —
2003-02-21 918-385 none assigned yet which blocks → OKLAHOMA WINDSTREAM, INC. 2011 POTEAU OK
2003-02-21 989-281 0XXX1XXX2XXX4XXX5XXX7XXX · 5 holders which blocks → 123.NET, LLC 2550 ROSCOMMON MI
2003-02-21 989-283 0–9 XXXall 10 · 7 holders which blocks → 123.NET, LLC 2550 STANTON MI
2003-02-20 361-222 2XXX3XXX5XXX6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TAFT TX
2003-02-20 361-231 3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HEBBRONVL TX
2003-02-20 404-488 0–9 XXXwhole prefix which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA GA
2003-02-20 509-205 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 KENNEWICK WA
2003-02-20 580-624 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → UNITED STATES CELLULAR - OK 6272 KINGSTON OK
2003-02-20 716-989 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LANCASTER NY
2003-02-20 845-594 0–9 XXXall 10 · 2 holders which blocks → INTRADO COMMUNICATIONS, LLC 831C KINGSTON NY
2003-02-19 224-305 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 NORTHBROOK IL
2003-02-19 252-599 3XXX4XXX5XXX8XXX9XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 COINJOCK NC
2003-02-19 318-405 1XXX2XXX3XXX4XXX5XXX6XXX8XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ST LANDRY LA
2003-02-19 402-504 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 OMAHA NE
2003-02-19 434-284 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 CHARLOTSVL VA
2003-02-19 506-323 not yet reported which blocks → Bell Mobility Aliant 329A Woodstock —
2003-02-19 506-397 not yet reported which blocks → Bell Mobility Aliant 329A Tracadie —
2003-02-19 705-706 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Bracebridge —
2003-02-19 724-914 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 WASHINGTON PA
2003-02-19 778-369 not yet reported which blocks → TELUS 8086 Aldergrove —
2003-02-19 902-262 not yet reported which blocks → Bragg Communications Inc. 4878 Saltsprings —
2003-02-19 920-573 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 OSHKOSH WI
2003-02-19 956-220 not yet reported which blocks → STPCS JOINT VENTURE, LLC 4290 LAREDO TX
2003-02-18 208-512 6XXX7XXX8XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID 6565 KELLOGG ID
2003-02-18 208-582 5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID 6565 ST MARIES ID
2003-02-18 252-675 4XXX6XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 NEW BERN NC
2003-02-18 315-755 0–9 XXXall 10 · 3 holders which blocks → WESTELCOM NETWORK, INC. - NY 1227 WATERTOWN NY
2003-02-18 580-861 0XXX1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RUSH SPG OK
2003-02-18 605-262 not yet reported which blocks → MIDCONTINENT COMMUNICATIONS. - SD 7076 ABERDEEN SD
2003-02-18 715-560 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MEDFORD WI
2003-02-18 717-662 not yet reported which blocks → WINDSTREAM D & E SYSTEMS, INC. - PA 4114 MOUNTVILLE PA
2003-02-18 787-559 none assigned yet which blocks → METROPCS, INC. 5562 HUMACAO PR
2003-02-18 787-671 none assigned yet which blocks → SUNCOM DBA T-MOBILE USA 8645 SANTURCE PR
2003-02-18 920-562 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2003-02-14 570-332 0–9 XXXall 10 · 3 holders which blocks → METROPCS, INC. 5562 WILKSBARRE PA
2003-02-13 325-242 6XXX7XXX8XXX9XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 COLORADOCY TX
2003-02-13 406-219 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - MT 994E BOZEMAN MT
2003-02-13 406-221 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - MT 453F BUTTE MT
2003-02-13 432-300 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 VALENTINE TX
2003-02-13 830-296 0XXX2XXX3XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → PEERLESS NETWORK OF TEXAS, LLC - TX 177F SABINAL TX
2003-02-13 830-722 2XXX5XXX7XXX8XXX · 3 holders which blocks → PEERLESS NETWORK OF TEXAS, LLC - TX 177F GONZALES TX
2003-02-13 830-723 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → PEERLESS NETWORK OF TEXAS, LLC - TX 177F LULING TX
2003-02-13 830-729 2XXX which blocks → PEERLESS NETWORK OF TEXAS, LLC - TX 177F DOSS TX
2003-02-13 830-842 0XXX2XXX3XXX5XXX6XXX · 4 holders which blocks → PEERLESS NETWORK OF TEXAS, LLC - TX 177F DILLEY TX

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.