NumberResearch Membership · Data 09/26/2026

Recent prefix assignments

360 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026

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. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 28
ONVOY, LLC - CA 26
NEW CINGULAR WIRELESS PCS, LLC - IL 26
Rogers Communications Canada Inc. (Wireless) 23
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
2021-08-11 551-755 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H CLOSTER NJ
2021-08-11 551-955 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H WYCKOFF NJ
2021-08-11 575-281 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 LAS CRUCES NM
2021-08-11 585-574 0–9 XXXall 10 · 2 holders which blocks → FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 629E ROCHESTER NY
2021-08-11 607-408 5XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 BINGHAMTON NY
2021-08-11 689-249 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 WINTERPARK FL
2021-08-11 716-503 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - NY 997E BUFFALO NY
2021-08-11 716-767 6XXX7XXX8XXX · 3 holders which blocks → FRACTEL, LLC 965H ALDEN NY
2021-08-11 716-889 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H TONAWANDA NY
2021-08-11 727-396 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 CLEARWATER FL
2021-08-11 757-658 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON1 VA
2021-08-11 838-250 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 ALBANY NY
2021-08-11 845-347 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC- NY 384C POUGHKEPSI NY
2021-08-11 856-515 0–9 XXXwhole prefix which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 HADDON HTS NJ
2021-08-11 856-518 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 SWEDESBORO NJ
2021-08-11 862-378 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 PATERSON NJ
2021-08-11 862-379 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 PASSAIC NJ
2021-08-11 908-536 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 ELIZABETH NJ
2021-08-11 912-597 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → AL-CALL, INC. - GA 3622 ALAMO GA
2021-08-11 928-413 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PIMA AZ
2021-08-11 941-278 0–9 XXXall 10 · 5 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 SARASOTA FL
2021-08-11 945-208 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2021-08-10 206-848 0–9 XXXwhole prefix which blocks → ONVOY, LLC - WA 483E SEATTLE WA
2021-08-10 224-398 0–9 XXXall 10 · 2 holders which blocks → COMCAST IP PHONE, LLC 318J ARLIGTNHTS IL
2021-08-10 240-789 0–9 XXXall 10 · 6 holders which blocks → ADVANCED TELECOM SOLUTIONS, LLC 181J WSNGTNZN10 MD
2021-08-10 256-904 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 FLORENCE AL
2021-08-10 302-579 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 GEORGETOWN DE
2021-08-10 339-345 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H MARBLEHEAD MA
2021-08-10 346-479 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LANGHAMCRK TX
2021-08-10 380-231 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
2021-08-10 470-963 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 ATLANTA GA
2021-08-10 502-887 0–9 XXXall 10 · 3 holders which blocks → PAETEC ITEL, LLC 829J LOUISVILLE KY
2021-08-10 561-696 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2021-08-10 564-205 0–9 XXXall 10 · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BREMERTON WA
2021-08-10 571-504 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H ENGLESIDE VA
2021-08-10 629-356 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → FRACTEL, LLC 965H CRSPLORLND TN
2021-08-10 659-238 0–9 XXXall 10 · 6 holders which blocks → AIRUS, INC. - AL 476H CHELSEA AL
2021-08-10 659-239 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 TUSCALOOSA AL
2021-08-10 659-240 0–9 XXXall 10 · 7 holders which blocks → AIRUS, INC. - AL 476H EUTAW AL
2021-08-10 680-288 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H UTICA NY
2021-08-10 680-567 2XXX3XXX6XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H BRIDGEPORT NY
2021-08-10 682-357 0–9 XXXall 10 · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 KELLER TX
2021-08-10 707-997 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H VALLEJO CA
2021-08-10 712-413 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SIOUX CITY IA
2021-08-10 712-694 1XXX which blocks → MCC TELEPHONY OF IOWA, LLC - IA 751F CUSHING IA
2021-08-10 725-433 0–9 XXXwhole prefix which blocks → ONVOY, LLC - NV 029F LAS VEGAS NV
2021-08-10 769-263 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NATCHEZ MS
2021-08-10 825-978 not yet reported which blocks → TELUS Mobility 8301 Nordegg —
2021-08-10 838-667 0–9 XXXall 10 · 7 holders which blocks → FRACTEL, LLC 965H HUDSON NY
2021-08-10 840-206 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 CHINO CA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.