NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

0 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, all time — NPA 910
BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 132
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 99
BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 80
SUNCOM DBA T-MOBILE USA 64
NEW CINGULAR WIRELESS PCS, LLC - GA 46
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
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2005-04-13 910-828 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 6 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 BISCOE NC
2005-03-15 910-599 0–9 XXXall 10 · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 WILMINGTON NC
2005-03-04 910-558 0XXX1XXX9XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 WILMINGTON NC
2005-02-21 910-312 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NC 3235 CLARKTON NC
2005-02-21 910-543 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NC 3235 LKWACCAMAW NC
2005-02-11 910-585 6XXX7XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 SOUTHEPINS NC
2005-01-06 910-595 0–9 XXXall 10 · 8 holders which blocks → PAETEC ITEL, LLC 829J MAYSVILLE NC
2004-12-01 910-833 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NC 3235 WILMINGTON NC
2004-09-22 910-333 0–9 XXXall 10 · 4 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K JACKSONVL NC
2004-09-22 910-465 0–9 XXXall 10 · 2 holders which blocks → SUNCOM DBA T-MOBILE USA 8645 WILMINGTON NC
2004-09-22 910-706 0–9 XXXall 10 · 4 holders which blocks → SUNCOM DBA T-MOBILE USA 8645 LAURINBURG NC
2004-09-22 910-887 0–9 XXXall 10 · 6 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 LUMBERTON NC
2004-09-22 910-922 0–9 XXXall 10 · 2 holders which blocks → SUNCOM DBA T-MOBILE USA 8645 FAYETTEVL NC
2004-09-21 910-722 0–9 XXXall 10 · 9 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NC 3235 CARTHAGE NC
2004-09-07 910-556 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NC 3235 VASS NC
2004-08-31 910-778 0–9 XXXall 10 · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 FAYETTEVL NC
2004-08-24 910-535 0–9 XXXall 10 · 7 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 FAIRMONT NC
2004-07-22 910-715 0–9 XXXwhole prefix which blocks → BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC 0470 PINEHURST NC
2004-06-30 910-441 0–9 XXXall 10 · 3 holders which blocks → SUNCOM DBA T-MOBILE USA 8645 KENANSVL NC
2004-06-09 910-516 0–9 XXXall 10 · 6 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 CHADBOURN NC
2004-05-20 910-557 0–9 XXXall 10 · 5 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 HAMLET NC
2004-05-18 910-319 0–9 XXXall 10 · 6 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 SCOTTSHILL NC
2004-04-30 910-366 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 FAYETTEVL NC
2004-04-26 910-375 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NC 3235 BEULAVILLE NC
2004-04-02 910-300 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NC 3235 BURGAW NC
2004-02-06 910-260 3XXX4XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 CLINTON NC
2004-02-06 910-985 3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 LILLINGTON NC
2003-12-31 910-713 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → SUNCOM DBA T-MOBILE USA 8645 SOUTHPORT NC
2003-12-31 910-714 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 ROSE HILL NC
2003-12-30 910-544 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 LAURINBURG NC
2003-12-30 910-566 not yet reported which blocks → PAETEC ITEL, LLC 829J SCOTTSHILL NC
2003-12-10 910-663 0–9 XXXall 10 · 9 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NC 3235 BURGAW NC
2003-12-10 910-665 0–9 XXXall 10 · 7 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 WALLACE NC
2003-11-06 910-933 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 LONG BEACH NC
2003-11-05 910-388 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 JACKSONVL NC
2003-10-01 910-717 7XXX8XXX which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 FAYETTEVL NC
2003-09-24 910-363 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → AT&T - LOCAL 7421 SOUTHPORT NC
2003-08-13 910-632 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WILMINGTON NC
2003-08-05 910-565 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NC 3235 RAEFORD NC
2003-07-23 910-984 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 6 holders which blocks → SUNCOM DBA T-MOBILE USA 8645 LILLINGTON NC
2003-07-23 910-992 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → SUNCOM DBA T-MOBILE USA 8645 SOUTHEPINS NC
2003-07-15 910-548 7XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 JACKSONVL NC
2003-06-20 910-657 not yet reported which blocks → READY TELECOM, INC. - NC 5307 WEST END NC
2003-06-19 910-623 0–9 XXXall 10 · 8 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K CASTLEHAYN NC
2003-06-19 910-885 0–9 XXXall 10 · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NC 3235 ST PAULS NC
2003-05-02 910-559 not yet reported which blocks → READY TELECOM, INC. - NC 5307 BISCOE NC
2003-04-04 910-682 0XXX3XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J CLINTON NC
2003-04-04 910-683 0XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J RAEFORD NC
2003-04-04 910-684 0XXX3XXX4XXX5XXX6XXX8XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J SOUTHEPINS NC
2003-04-04 910-687 0XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J 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.