NumberResearch Membership · Data 09/22/2026

Recent prefix assignments

354 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/22/2026

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 26
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
2002-02-15 207-659 7XXX9XXX · 2 holders which blocks → BELL ATLANTIC MOBILE, INC 6386 BANGOR ME
2002-02-15 303-513 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 DENVER CO
2002-02-15 434-830 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 HALIFAX VA
2002-02-15 501-398 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LITTLEROCK AR
2002-02-15 574-339 5XXX6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTH BEND IN
2002-02-15 608-443 6XXX7XXX8XXX9XXX which blocks → TDS METROCOM, LLC 520K MADISON WI
2002-02-15 631-332 4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2002-02-15 661-340 5XXX6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 BKFD MAIN CA
2002-02-15 786-298 2XXX3XXX4XXX5XXX · 3 holders which blocks → METROPCS, INC. 5562 HOMESTEAD FL
2002-02-15 786-299 5XXX8XXX9XXX · 2 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 MIAMI FL
2002-02-15 817-933 6XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEBURNE TX
2002-02-14 217-400 not yet reported which blocks → NORTH COUNTY COMMUNICATION CORPORATION - CA 7894 SPRINGFLD IL
2002-02-14 217-631 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IL 6115 MONTICELLO IL
2002-02-14 217-769 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IL 6115 HOOPESTON IL
2002-02-14 309-641 1XXX2XXX3XXX4XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IL 6115 MORTON IL
2002-02-14 309-717 1XXX2XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IL 6115 SUNNYLAND IL
2002-02-14 402-714 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OMAHA NE
2002-02-14 402-812 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OMAHA NE
2002-02-14 580-701 0XXX2XXX3XXX5XXX6XXX7XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OK 5257 ENID OK
2002-02-14 785-714 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - KS 2240 SALINA KS
2002-02-14 850-485 7XXX which blocks → ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 PENSACOLA FL
2002-02-14 936-228 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 4344 WILLIS TX
2002-02-14 940-742 not yet reported which blocks → SANTA ROSA TELEPHONE COOPERATIVE, INC. 4046 ROCHESTER TX
2002-02-14 940-996 not yet reported which blocks → SANTA ROSA TELEPHONE COOPERATIVE, INC. 4046 RULE TX
2002-02-13 208-709 9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 IDAHOFALLS ID
2002-02-13 218-261 3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 MAHNOMEN MN
2002-02-13 218-282 2XXX4XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BATTLELAKE MN
2002-02-13 313-805 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 DETROITZN5 MI
2002-02-13 320-287 4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 MORRIS MN
2002-02-13 320-297 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 APPLETON MN
2002-02-13 320-305 3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 ORTONVILLE MN
2002-02-13 337-241 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 JEANERETTE LA
2002-02-13 609-917 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J PRINCETON NJ
2002-02-13 610-452 9XXX which blocks → SERVICE ELECTRIC TELEPHONE COMPANY, LLC 8320 BANGOR PA
2002-02-13 610-654 9XXX which blocks → SERVICE ELECTRIC TELEPHONE COMPANY, LLC 8320 PEN ARGYL PA
2002-02-13 620-615 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KS 6532 HUTCHINSON KS
2002-02-13 651-343 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2002-02-13 708-769 not yet reported which blocks → T-MOBILE USA, INC. 6529 CHICAGOHTS IL
2002-02-13 765-280 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 ROCKVILLE IN
2002-02-13 765-299 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 ATTICA IN
2002-02-13 765-323 1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 CRAWFODSVL IN
2002-02-13 765-465 4XXX5XXX6XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 NEW CASTLE IN
2002-02-13 765-499 3XXX4XXX5XXX6XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 HARTFORDCY IN
2002-02-13 765-510 1XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 HARTFORDCY IN
2002-02-13 765-517 4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 MARION IN
2002-02-13 765-680 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 LEBANON IN
2002-02-13 765-697 7XXX8XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 ROANN IN
2002-02-13 774-230 6XXX7XXX8XXX9XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 SOUTHBDG MA
2002-02-13 775-303 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 RENO NV
2002-02-13 818-381 0XXX4XXX5XXX8XXX9XXX · 4 holders which blocks → T-MOBILE USA, INC. 6529 BRBN SNVY CA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/22/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.