NumberResearchRecent prefix assignments
349 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/24/2026
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
New assignments by month
Sep 2026
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 270-668 | not yet reported which blocks → | BRANDENBURG TEL. CO. | 0398 | IRVINGTON | KY |
| — | 270-669 | 1XXX8XXX · 2 holders which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | ST CHARLES | KY |
| — | 270-670 | not yet reported which blocks → | SO CENTRAL RURAL TELECOMM COOPERATIVE, INC. | 0418 | GLASGWRURL | KY |
| — | 270-671 | 1XXX7XXX9XXX · 2 holders which blocks → | ONVOY, LLC - KY | 896E | CLAY | KY |
| — | 270-674 | none assigned yet which blocks → | WEST KENTUCKY RURAL TEL | 0421 | LOWES | KY |
| — | 270-675 | not yet reported which blocks → | ONVOY, LLC - KY | 896E | CLINTON | KY |
| — | 270-676 | 2XXX4XXX5XXX6XXX · 4 holders which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | NORTONVL | KY |
| — | 270-677 | 1XXX3XXX5XXX7XXX · 2 holders which blocks → | WINDSTREAM KENTUCKY EAST, INC. - LONDON | 9691 | COLUMBUS | KY |
| — | 270-678 | not yet reported which blocks → | SO CENTRAL RURAL TELECOMM COOPERATIVE, INC. | 0418 | GLASGWRURL | KY |
| — | 270-679 | 2XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → | TWILIO INTERNATIONAL, INC. | 506J | LEITCHFLD | KY |
| — | 270-680 | 0XXX5XXX8XXX · 3 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - KY | 8406 | PRINCETON | KY |
| — | 270-682 | not yet reported which blocks → | ONVOY, LLC - KY | 896E | CADIZ | KY |
| — | 270-683 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | OWENSBORO | KY |
| — | 270-684 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | OWENSBORO | KY |
| — | 270-685 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | OWENSBORO | KY |
| — | 270-686 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | OWENSBORO | KY |
| — | 270-687 | none assigned yet which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | OWENSBORO | KY |
| — | 270-688 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | OWENSBORO | KY |
| — | 270-689 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | OWENSBORO | KY |
| — | 270-690 | 0XXX4XXX · 2 holders which blocks → | ONVOY, LLC - KY | 896E | PROVIDENCE | KY |
| — | 270-691 | none assigned yet which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | OWENSBORO | KY |
| — | 270-692 | none assigned yet which blocks → | WINDSTREAM KENTUCKY EAST, INC. - LEXINGTON | 9690 | LEBANON | KY |
| — | 270-694 | 0XXX1XXX2XXX5XXX7XXX · 3 holders which blocks → | WINDSTREAM KENTUCKY EAST, INC. - LONDON | 9691 | MILBURN | KY |
| — | 270-695 | 7XXX8XXX9XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | OWENSBORO | KY |
| — | 270-697 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | OAK GROVE | KY |
| — | 270-698 | 7XXX8XXX9XXX · 3 holders which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | OAK GROVE | KY |
| — | 270-699 | none assigned yet which blocks → | WINDSTREAM KENTUCKY EAST, INC. - LEXINGTON | 9690 | LEBANON | KY |
| — | 270-700 | not yet reported which blocks → | KY | |||
| — | 270-706 | none assigned yet which blocks → | WINDSTREAM KENTUCKY EAST, INC. - LEXINGTON | 9690 | ELIZABTHTN | KY |
| — | 270-707 | 6XXX8XXX · 2 holders which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | HOPKINSVL | KY |
| — | 270-708 | none assigned yet which blocks → | ONVOY, LLC - KY | 896E | MURRAY | KY |
| — | 270-709 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY | 6500 | PADUCAH | KY |
| — | 270-711 | not yet reported which blocks → | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | KY |
| — | 270-712 | none assigned yet which blocks → | ONVOY, LLC - KY | 896E | MADISONVL | KY |
| — | 270-713 | not yet reported which blocks → | ONVOY, LLC - KY | 896E | OWENSBORO | KY |
| — | 270-714 | not yet reported which blocks → | ONVOY, LLC - KY | 896E | HENDERSON | KY |
| — | 270-715 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | BOWLNGGREN | KY |
| — | 270-716 | not yet reported which blocks → | ONVOY, LLC - KY | 896E | BEAVER DAM | KY |
| — | 270-717 | not yet reported which blocks → | ONVOY, LLC - KY | 896E | RUSSELLVL | KY |
| — | 270-718 | 2XXX3XXX5XXX7XXX8XXX · 2 holders which blocks → | ONVOY, LLC - KY | 896E | CENTRAL CY | KY |
| — | 270-720 | 0XXX4XXX8XXX · 2 holders which blocks → | ONVOY, LLC - KY | 896E | RUSSELLVL | KY |
| — | 270-721 | not yet reported which blocks → | ONVOY, LLC - KY | 896E | BOWLNGGREN | KY |
| — | 270-723 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | ELIZABTHTN | KY |
| — | 270-724 | 4XXX7XXX8XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | HENDERSON | KY |
| — | 270-725 | none assigned yet which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | RUSSELLVL | KY |
| — | 270-726 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | RUSSELLVL | KY |
| — | 270-727 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY | 6500 | MAYFIELD | KY |
| — | 270-728 | 0XXX which blocks → | LOGAN TEL. COOP., INC. | 0413 | LOGANSPORT | KY |
| — | 270-729 | 1XXX8XXX · 2 holders which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | HABIT | KY |
| — | 270-730 | 0XXX which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | BEAVER DAM | KY |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.