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 256
BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 180
NEW CINGULAR WIRELESS PCS, LLC - GA 114
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 84
PAETEC ITEL, LLC 58
POWERTEL BIRMINGHAM LICENSES, INC. 49
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
— 256-587 1XXX2XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → BRIGHTSPEED OF ALABAMA, LLC - SOUTHERN 9788 SKYLINE AL
— 256-588 3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J KILLEN AL
— 256-589 3XXX4XXX7XXX8XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 TALLADEGA AL
— 256-590 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 CULLMAN AL
— 256-593 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 BOAZ AL
— 256-594 1XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J SCOTTSBORO AL
— 256-596 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - AL 604E ALEXANDRCY AL
— 256-597 5XXX6XXX7XXX which blocks → FARMERS TELECOMMUNICATIONS COOPERATIVE, INC. 0290 BRYANT AL
— 256-598 3XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J CHILDERSBG AL
— 256-599 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 SCOTTSBORO AL
— 256-603 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HUNTSVILLE AL
— 256-604 1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HUNTSVILLE AL
— 256-606 3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DECATUR AL
— 256-611 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX AL
— 256-614 0XXX1XXX2XXX3XXX4XXX5XXX9XXX · 3 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 ATHENS AL
— 256-622 1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GADSDEN AL
— 256-623 none assigned yet which blocks → FARMERS TELECOMMUNICATIONS COOPERATIVE, INC. 0290 FYFFE AL
— 256-624 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J ANNISTON AL
— 256-627 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ROGERSVL AL
— 256-632 7XXX which blocks → FARMERS TELECOMMUNICATIONS COOPERATIVE, INC. 0290 FLAT ROCK AL
— 256-634 1XXX2XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → BRIGHTSPEED OF ALABAMA, LLC - NORTHERN 9789 MENTONE AL
— 256-635 2XXX3XXX4XXX5XXX7XXX · 3 holders which blocks → BRIGHTSPEED OF ALABAMA, LLC - NORTHERN 9789 VALLEYHEAD AL
— 256-637 3XXX4XXX7XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 COURTLAND AL
— 256-638 none assigned yet which blocks → FARMERS TELECOMMUNICATIONS COOPERATIVE, INC. 0290 RAINSVILLE AL
— 256-639 3XXX4XXX5XXX7XXX8XXX9XXX which blocks → PAETEC ITEL, LLC 829J OHATCHEE AL
— 256-642 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 DECATUR AL
— 256-643 0XXX2XXX6XXX9XXX which blocks → PEOPLES TEL. CO., INC. 0314 RINEHART AL
— 256-644 4XXX5XXX7XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J JACKSONVL AL
— 256-645 3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J PIEDMONT AL
— 256-646 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - AL 604E GADSDEN AL
— 256-647 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 SCOTTSBORO AL
— 256-648 2XXX3XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → METROPCS, INC. 5562 FLORENCE AL
— 256-650 8XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 HUNTSVILLE AL
— 256-651 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HUNTSVILLE AL
— 256-652 not yet reported which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 HUNTSVILLE AL
— 256-653 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HUNTSVILLE AL
— 256-654 not yet reported which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 DECATUR AL
— 256-655 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HUNTSVILLE AL
— 256-656 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 HUNTSVILLE AL
— 256-657 none assigned yet which blocks → FARMERS TELECOMMUNICATIONS COOPERATIVE, INC. 0290 HENAGAR AL
— 256-658 not yet reported which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 HUNTSVILLE AL
— 256-659 none assigned yet which blocks → FARMERS TELECOMMUNICATIONS COOPERATIVE, INC. 0290 GERALDINE AL
— 256-661 0–9 XXXall 10 · 6 holders which blocks → TELNYX LLC 073H LEIGHTON AL
— 256-669 0–9 XXXall 10 · 8 holders which blocks → TELNYX LLC 073H COURTLAND AL
— 256-670 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - AL 072F BRIDGEPORT AL
— 256-671 not yet reported which blocks → SHARP COMMUNICATION, INC. 6885 HUNTSVILLE AL
— 256-673 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → POWERTEL BIRMINGHAM LICENSES, INC. 7475 GUNTERSVL AL
— 256-674 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - AL 604E VALLEYHEAD AL
— 256-679 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 HUNTSVILLE AL
— 256-682 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HUNTSVILLE AL

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.