NumberResearchRecent prefix assignments
360 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026
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
Aug 2026
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Dec 2025
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2002-12-10 | 315-560 | 2XXX3XXX4XXX7XXX8XXX9XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SYRACUSE | NY |
| 2002-12-10 | 416-779 | not yet reported which blocks → | Bell Mobility | 6574 | Toronto | — |
| 2002-12-10 | 450-595 | not yet reported which blocks → | Videotron Ltd. | 8306 | Mirabel-Aeroport | — |
| 2002-12-10 | 514-378 | not yet reported which blocks → | Bell Mobility | 6574 | Montreal | — |
| 2002-12-10 | 514-605 | not yet reported which blocks → | Bell Mobility | 6574 | Montreal | — |
| 2002-12-10 | 518-528 | 0–9 XXXwhole prefix which blocks → | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | ALBANY | NY |
| 2002-12-10 | 601-617 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MS | 5178 | PORTGIBSON | MS |
| 2002-12-10 | 601-651 | 0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MS | 5178 | LAUREL | MS |
| 2002-12-10 | 601-652 | not yet reported which blocks → | TELEPAK NETWORKS, INC. - MS | 5278 | POPLARVL | MS |
| 2002-12-10 | 607-372 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BINGHAMTON | NY |
| 2002-12-10 | 630-813 | none assigned yet which blocks → | ILLINOIS BELL TEL CO | 9329 | NAPERVILLE | IL |
| 2002-12-10 | 647-220 | not yet reported which blocks → | Bell Mobility | 6574 | Toronto | — |
| 2002-12-10 | 716-954 | 0–9 XXXall 10 · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BUFFALO | NY |
| 2002-12-10 | 845-242 | 0–9 XXXall 10 · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | POUGHKEPSI | NY |
| 2002-12-10 | 989-292 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 6003 | ST JOHNS | MI |
| 2002-12-09 | 505-686 | not yet reported which blocks → | SMITH BAGLEY INC. DBA CELLULAR ONE OF NE ARIZONA | 4146 | FARMINGTON | NM |
| 2002-12-06 | 417-207 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | SPRINGFLD | MO |
| 2002-12-06 | 603-854 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MANCHESTER | NH |
| 2002-12-06 | 712-881 | not yet reported which blocks → | MAPLETON COMMUNICATIONS UTILITY - IA | 130A | MAPLETON | IA |
| 2002-12-05 | 231-429 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 6003 | CADILLAC | MI |
| 2002-12-05 | 417-545 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → | BRIGHTSPEED OF MISSOURI, LLC | 9787 | FORSYTH | MO |
| 2002-12-05 | 418-221 | not yet reported which blocks → | TELUS Quebec | 8083 | Saint-Georges-de-Beauce | — |
| 2002-12-05 | 418-357 | not yet reported which blocks → | TELUS Quebec | 8083 | Saint-Pamphile | — |
| 2002-12-05 | 418-532 | not yet reported which blocks → | TELUS Quebec | 8083 | Havre-Saint-Pierre | — |
| 2002-12-05 | 418-556 | not yet reported which blocks → | TELUS Quebec | 8083 | Matane | — |
| 2002-12-05 | 418-586 | not yet reported which blocks → | TELUS Quebec | 8083 | Forestville | — |
| 2002-12-05 | 418-783 | not yet reported which blocks → | TELUS Quebec | 8083 | Perce | — |
| 2002-12-05 | 423-522 | 0XXX1XXX8XXX9XXX · 2 holders which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | MORRISTOWN | TN |
| 2002-12-05 | 814-889 | 0–9 XXXall 10 · 4 holders which blocks → | CORE COMMUNICATIONS, INC. - PA | 3806 | ALTOONA | PA |
| 2002-12-05 | 907-699 | not yet reported which blocks → | GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION | 6872 | FAIRBANKS | AK |
| 2002-12-04 | 229-442 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | SOUTHERN COMMUNICATIONS SERVICES, INC. | 6744 | BAINBRIDGE | GA |
| 2002-12-04 | 229-443 | 1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → | SOUTHERN COMMUNICATIONS SERVICES, INC. | 6744 | CORDELE | GA |
| 2002-12-04 | 229-445 | 2XXX3XXX7XXX8XXX9XXX · 4 holders which blocks → | SOUTHERN COMMUNICATIONS SERVICES, INC. | 6744 | TIFTON | GA |
| 2002-12-04 | 432-202 | 0–9 XXXall 10 · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | ODESSA | TX |
| 2002-12-04 | 478-488 | 2XXX3XXX4XXX7XXX8XXX9XXX · 4 holders which blocks → | SOUTHERN COMMUNICATIONS SERVICES, INC. | 6744 | DUBLIN | GA |
| 2002-12-04 | 509-699 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | WESTGATE COMMUNICATIONS, LLC DBA WEAVTEL - WA | 580D | WENATCHEE | WA |
| 2002-12-04 | 706-844 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | PAETEC ITEL, LLC | 829J | ROME | GA |
| 2002-12-04 | 843-598 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC | 6398 | LAKE CITY | SC |
| 2002-12-04 | 843-599 | 7XXX8XXX which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC | 6398 | WALTERBORO | SC |
| 2002-12-04 | 870-201 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 9 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | NEWPORT | AR |
| 2002-12-04 | 870-202 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 6 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | POCAHONTAS | AR |
| 2002-12-04 | 973-573 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NEWARK | NJ |
| 2002-12-03 | 318-436 | 0XXX2XXX3XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → | METROPCS, INC. | 5562 | RUSTON | LA |
| 2002-12-03 | 318-527 | 0XXX3XXX4XXX · 3 holders which blocks → | METROPCS, INC. | 5562 | NATCHITCHS | LA |
| 2002-12-03 | 325-215 | 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | JUNCTION | TX |
| 2002-12-03 | 325-216 | 3XXX4XXX5XXX · 2 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | LLANO | TX |
| 2002-12-03 | 325-218 | 1XXX2XXX3XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | MASON | TX |
| 2002-12-03 | 608-851 | 1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | MONROE | WI |
| 2002-12-03 | 608-852 | 0–9 XXXall 10 · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | MADISON | WI |
| 2002-12-03 | 956-433 | 0XXX2XXX3XXX4XXX5XXX · 4 holders which blocks → | STPCS JOINT VENTURE, LLC | 4290 | PORTISABEL | TX |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.