NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

338 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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
Download CSV ↓
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
— 910-204 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 XXXXXXXXXX NC
— 910-205 7XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 HAMLET NC
— 910-206 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ROCKINGHAM NC
— 910-207 0XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WHITEVILLE NC
— 910-208 0XXX2XXX3XXX4XXX6XXX9XXX · 4 holders which blocks → CENTURYLINK COMMUNICATIONS LLC - NC 4809 WRGHTSVBCH NC
— 910-209 0XXX8XXX9XXX which blocks → SUNCOM DBA T-MOBILE USA 8645 SHALLOTTE NC
— 910-210 0XXX2XXX3XXX4XXX6XXX9XXX · 3 holders which blocks → CENTURYLINK COMMUNICATIONS LLC - NC 4809 CASTLEHAYN NC
— 910-211 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NC
— 910-212 0–9 XXXall 10 · 7 holders which blocks → BANDWIDTH.COM CLEC, LLC - NC 998E WHITEVILLE NC
— 910-213 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - NC 8389 FAYETTEVL NC
— 910-214 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 CLINTON NC
— 910-215 none assigned yet which blocks → BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 PINEHURST NC
— 910-216 0XXX2XXX3XXX4XXX6XXX9XXX · 3 holders which blocks → CENTURYLINK COMMUNICATIONS LLC - NC 4809 CAROLINBCH NC
— 910-217 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAURINBURG NC
— 910-219 5XXX which blocks → BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 JACKSONVL NC
— 910-220 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TROY NC
— 910-221 2XXX6XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - NC 3235 FAYETTEVL NC
— 910-222 4XXX which blocks → NUSO, LLC 478J FAYETTEVL NC
— 910-223 not yet reported which blocks → BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 FAYETTEVL NC
— 910-224 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → SUNCOM DBA T-MOBILE USA 8645 FAYETTEVL NC
— 910-225 2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → UNITED STATES CELLULAR - NC 6282 LUMBERTON NC
— 910-226 0–9 XXXall 10 · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WARSAW NC
— 910-227 0XXX2XXX3XXX4XXX6XXX9XXX · 4 holders which blocks → CENTURYLINK COMMUNICATIONS LLC - NC 4809 REDSPRINGS NC
— 910-228 1XXX2XXX3XXX4XXX5XXX · 2 holders which blocks → SUNCOM DBA T-MOBILE USA 8645 WILMINGTON NC
— 910-229 2XXX3XXX which blocks → SUNCOM DBA T-MOBILE USA 8645 FAYETTEVL NC
— 910-230 5XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 DUNN NC
— 910-231 none assigned yet which blocks → UNITED STATES CELLULAR - NC 6282 WILMINGTON NC
— 910-232 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WILMINGTON NC
— 910-233 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WILMINGTON NC
— 910-234 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WHITEVILLE NC
— 910-235 none assigned yet which blocks → BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 PINEHURST NC
— 910-236 0XXX2XXX3XXX4XXX6XXX9XXX · 4 holders which blocks → CENTURYLINK COMMUNICATIONS LLC - NC 4809 NEWTON GRV NC
— 910-237 none assigned yet which blocks → SUNCOM DBA T-MOBILE USA 8645 FAYETTEVL NC
— 910-238 0XXX2XXX3XXX4XXX6XXX9XXX · 3 holders which blocks → CENTURYLINK COMMUNICATIONS LLC - NC 4809 JACKSONVL NC
— 910-239 0XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J WRGHTSVBCH NC
— 910-240 0XXX2XXX3XXX4XXX6XXX9XXX · 3 holders which blocks → CENTURYLINK COMMUNICATIONS LLC - NC 4809 MAXTON NC
— 910-241 0XXX2XXX3XXX4XXX6XXX9XXX · 5 holders which blocks → CENTURYLINK COMMUNICATIONS LLC - NC 4809 ST PAULS NC
— 910-242 0XXX2XXX3XXX4XXX6XXX9XXX · 5 holders which blocks → CENTURYLINK COMMUNICATIONS LLC - NC 4809 LILLINGTON NC
— 910-243 not yet reported which blocks → BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 FAYETTEVL NC
— 910-245 not yet reported which blocks → BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 VASS NC
— 910-246 6XXX7XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 SOUTHEPINS NC
— 910-247 0XXX2XXX3XXX4XXX6XXX9XXX · 5 holders which blocks → CENTURYLINK COMMUNICATIONS LLC - NC 4809 ELIZABTHTN NC
— 910-248 0XXX2XXX3XXX4XXX6XXX9XXX · 4 holders which blocks → CENTURYLINK COMMUNICATIONS LLC - NC 4809 RAEFORD NC
— 910-249 0XXX2XXX3XXX4XXX6XXX9XXX · 3 holders which blocks → CENTURYLINK COMMUNICATIONS LLC - NC 4809 CLINTON NC
— 910-250 0–9 XXXall 10 · 8 holders which blocks → BANDWIDTH.COM CLEC, LLC - NC 998E LONG BEACH NC
— 910-251 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 WILMINGTON NC
— 910-252 not yet reported which blocks → PAETEC ITEL, LLC 829J FAYETTEVL NC
— 910-253 not yet reported which blocks → ATLANTIC TEL. MEMBERSHIP CORP. 0468 BOLIVIA NC
— 910-254 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 WILMINGTON NC
— 910-255 5XXX6XXX · 2 holders which blocks → BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 PINEHURST NC

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.