NumberResearch Membership · Data 09/29/2026

Recent prefix assignments

347 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/29/2026

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
Rogers Communications Canada Inc. (Wireless) 23
NEW CINGULAR WIRELESS PCS, LLC - IL 23
ONVOY, LLC - CA 19
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 ↓
Quick find in this area code:
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2018-07-23 954-645 0–9 XXXall 10 · 4 holders which blocks → AIRESPRING, INC. 996H DEERFLDBCH FL
2018-07-20 470-980 0–9 XXXall 10 · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - GA 7435 SENOIA GA
2018-07-20 859-712 2XXX3XXX4XXX5XXX6XXX which blocks → ONVOY, LLC - KY 896E DANVILLE KY
2018-07-19 231-289 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - MI 991E CHARLEVOIX MI
2018-07-19 343-549 not yet reported which blocks → Bell Mobility 6574 Ottawa-Hull —
2018-07-19 343-550 not yet reported which blocks → Bell Mobility 6574 Ottawa-Hull —
2018-07-19 346-350 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SUGAR LAND TX
2018-07-19 365-323 not yet reported which blocks → Bell Mobility 6574 Hamilton —
2018-07-19 509-400 0XXX1XXX2XXX4XXX5XXX6XXX · 3 holders which blocks → UNITED STATES CELLULAR - WA 6270 MATTAWA WA
2018-07-19 587-935 not yet reported which blocks → Bell Mobility 6574 Calgary —
2018-07-19 647-312 not yet reported which blocks → Bell Mobility 6574 Toronto —
2018-07-19 647-322 not yet reported which blocks → Bell Mobility 6574 Toronto —
2018-07-19 757-906 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - VA 079F TOANO VA
2018-07-19 772-277 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - FL 937C SEBASTIAN FL
2018-07-19 873-354 not yet reported which blocks → Bell Mobility 6574 Ottawa-Hull —
2018-07-19 904-914 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - FL 937C JACKSONVL FL
2018-07-19 910-421 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - NC 998E SWANSBORO NC
2018-07-19 910-951 0–9 XXXwhole prefix which blocks → BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 FAYETTEVL NC
2018-07-19 939-236 0XXX2XXX3XXX6XXX8XXX · 5 holders which blocks → LUMEN TECHNOLOGIES PUERTO RICO, LLC 091J RIOPIEDRAS PR
2018-07-19 954-953 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - FL 937C POMPANOBCH FL
2018-07-18 236-464 not yet reported which blocks → Bell Mobility 6574 Victoria —
2018-07-18 438-335 not yet reported which blocks → Bell Mobility 6574 Montreal —
2018-07-18 438-856 not yet reported which blocks → Bell Mobility 6574 Montreal —
2018-07-18 980-281 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - NC 998E LINCOLNTON NC
2018-07-17 234-247 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - OH 001F SALEM OH
2018-07-17 236-298 not yet reported which blocks → Bell Mobility 6574 Vancouver —
2018-07-17 346-349 0–9 XXXall 10 · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 CHANNELVW TX
2018-07-17 438-854 not yet reported which blocks → Bell Mobility 6574 Montreal —
2018-07-17 469-493 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2018-07-17 470-460 0–9 XXXall 10 · 4 holders which blocks → WIDE VOICE, LLC - GA 529H ATLANTA SO GA
2018-07-17 564-240 0–9 XXXall 10 · 4 holders which blocks → QWEST CORPORATION 9638 SILVERDALE WA
2018-07-17 581-796 not yet reported which blocks → Iristel Inc. 154E Natashquan —
2018-07-17 581-809 not yet reported which blocks → Iristel Inc. 154E Port-Cartier —
2018-07-17 647-319 not yet reported which blocks → Bell Mobility 6574 Toronto —
2018-07-17 647-320 not yet reported which blocks → Bell Mobility 6574 Toronto —
2018-07-17 661-501 0–9 XXXall 10 · 7 holders which blocks → BHN IP ENABLED SERVICES, LLC 045L BKFD SOUTH CA
2018-07-17 785-509 0XXX2XXX3XXX5XXX6XXX7XXX9XXX · 2 holders which blocks → ONVOY, LLC - KS 205F ESKRIDGE KS
2018-07-17 785-599 0XXX5XXX6XXX7XXX9XXX · 3 holders which blocks → ONVOY, LLC - KS 205F MELVERN KS
2018-07-17 785-710 0XXX5XXX6XXX7XXX · 2 holders which blocks → ONVOY, LLC - KS 205F HARVEYVL KS
2018-07-17 785-782 0XXX3XXX4XXX7XXX · 2 holders which blocks → ONVOY, LLC - KS 205F QUENEMO KS
2018-07-17 785-971 0XXX1XXX2XXX3XXX5XXX7XXX9XXX · 3 holders which blocks → ONVOY, LLC - KS 205F ALMA KS
2018-07-17 989-998 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OWOSSO MI
2018-07-16 223-205 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MARION PA
2018-07-16 236-299 not yet reported which blocks → Bell Mobility 6574 Vancouver —
2018-07-16 236-357 not yet reported which blocks → Shaw Telecom Inc. 497E Bowen Island —
2018-07-16 513-953 0–9 XXXall 10 · 4 holders which blocks → WIDE VOICE, LLC - OH 765H HAMILTON OH
2018-07-16 587-932 not yet reported which blocks → Bell Mobility 6574 Calgary —
2018-07-16 681-682 0–9 XXXall 10 · 7 holders which blocks → WIDE VOICE, LLC - WV 729H MADISON WV
2018-07-13 267-764 0–9 XXXall 10 · 5 holders which blocks → ADVANCED TELECOM SOLUTIONS, LLC 181J PHLDLPHZN1 PA
2018-07-13 314-370 0–9 XXXall 10 · 5 holders which blocks → CHARTER IP ENABLED SERVICES, LLC 792K CREVECOEUR MO

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/29/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.