Recent prefix assignments

334 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/27/2026

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
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
2005-06-03 707-981 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PTLM MAIN CA
2005-06-03 760-904 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PALM SPG CA
2005-06-03 785-953 0–9 XXXall 10 · 8 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KS 6532 OAKLEY KS
2005-06-03 831-920 0–9 XXXall 10 · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MONTEREY CA
2005-06-03 951-579 0–9 XXXall 10 · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - CA 8826 ELSINORE CA
2005-06-02 202-701 0–9 XXXall 10 · 3 holders which blocks → VERIZON WASHINGTON DC, INC. 9211 WSHNGTNZN1 DC
2005-06-02 248-313 0–9 XXXall 10 · 8 holders which blocks → PAETEC ITEL, LLC 829J WALLEDLAKE MI
2005-06-02 269-455 0–9 XXXall 10 · 8 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SAUGATUCK MI
2005-06-02 615-785 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MURFREESBO TN
2005-06-02 903-603 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MABANK TX
2005-06-02 928-550 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 SOMERTON AZ
2005-06-02 951-816 0–9 XXXall 10 · 7 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MURRIETA CA
2005-06-01 303-396 0–9 XXXall 10 · 5 holders which blocks → LIVE WIRE NETWORKS, INC. - CO 3044 DENVER CO
2005-06-01 406-471 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 6564 KALISPELL MT
2005-06-01 408-786 0–9 XXXall 10 · 5 holders which blocks → XO CALIFORNIA, INC. 7262 SNJS NORTH CA
2005-06-01 530-923 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MARYSVILLE CA
2005-06-01 670-237 not yet reported which blocks → MICRONESIAN TELECOMMUNICATIONS CORPORATION 3700 SAIPAN —
2005-06-01 712-584 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SPENCER IA
2005-06-01 740-792 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 STEUBENVL OH
2005-06-01 757-385 0–9 XXXwhole prefix which blocks → VERIZON SOUTH, INC. - VA (CONTEL) 0233 NRFOLKZON4 VA
2005-06-01 757-389 0–9 XXXall 10 · 5 holders which blocks → PAETEC ITEL, LLC 829J NRFOLKZON1 VA
2005-05-31 248-773 0–9 XXXall 10 · 7 holders which blocks → PAETEC ITEL, LLC 829J NORTHVILLE MI
2005-05-31 270-425 0–9 XXXall 10 · 7 holders which blocks → POWERTEL KENTUCKY LICENSES, INC. 365C DAWSON SPG KY
2005-05-31 309-885 0–9 XXXall 10 · 8 holders which blocks → BRIGHTSPEED OF ILLINOIS, LLC 1057 PEKIN IL
2005-05-31 404-552 0–9 XXXall 10 · 2 holders which blocks → METROPCS, INC. 5562 ATLANTA GA
2005-05-31 414-269 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MILWAUKZN1 WI
2005-05-31 480-254 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2005-05-31 573-303 0–9 XXXall 10 · 5 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 COLUMBIA MO
2005-05-31 575-973 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 RUIDOSO NM
2005-05-31 614-915 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 COLUMBUS OH
2005-05-31 618-510 0XXX9XXX · 2 holders which blocks → MCC TELEPHONY LLC 593K ST ELMO IL
2005-05-31 757-609 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON1 VA
2005-05-31 775-229 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NV 4805 RENO NV
2005-05-31 775-990 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NV 4805 PAHRUMP NV
2005-05-31 804-381 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 RICHMOND VA
2005-05-31 912-362 4XXX6XXX7XXX8XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 METTER GA
2005-05-31 989-945 0–9 XXXall 10 · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 OVID MI
2005-05-30 519-207 not yet reported which blocks → Rogers Communications Canada Inc. (Cable) 743B St. Thomas —
2005-05-30 709-641 not yet reported which blocks → Aliant Telecom (NF) 8085 Stephenville —
2005-05-30 709-787 not yet reported which blocks → Aliant Telecom (NF) 8085 Bay Roberts —
2005-05-30 780-651 not yet reported which blocks → Bell West Inc. 2933 St. Albert —
2005-05-27 240-821 0–9 XXXall 10 · 4 holders which blocks → PAETEC ITEL, LLC 829J WSHNGTNZN3 MD
2005-05-27 317-688 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 CARMEL IN
2005-05-27 514-477 not yet reported which blocks → TELUS Quebec 2243 Ile-Perrot —
2005-05-27 519-205 not yet reported which blocks → Rogers Communications Canada Inc. (Cable) 743B Strathroy —
2005-05-27 519-206 not yet reported which blocks → Rogers Communications Canada Inc. (Cable) 743B St. Jacobs —
2005-05-27 519-208 not yet reported which blocks → Rogers Communications Canada Inc. (Cable) 743B Kitchener-Waterloo —
2005-05-27 519-210 not yet reported which blocks → Rogers Communications Canada Inc. (Cable) 743B Elmira —
2005-05-27 519-213 not yet reported which blocks → Rogers Communications Canada Inc. (Cable) 743B Breslau —
2005-05-27 519-214 not yet reported which blocks → Rogers Communications Canada Inc. (Cable) 743B Baden —

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/27/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.