NumberResearchRecent thousands-block assignments
3,379 blocks assigned in May 2026 · from the daily NANPA thousands-block report, 2026-04
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, May 2026
New assignments by month
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| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2026-05-14 | 863-587-6XXX | TELEPORT COMMUNICATIONS AMERICA, LLC - FL | 8300 | LAKELAND | FL |
| 2026-05-14 | 872-388-3XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | CHICGOZN03 | IL |
| 2026-05-14 | 872-388-4XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | CHICGOZN03 | IL |
| 2026-05-14 | 878-307-8XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | ROCHESTER | PA |
| 2026-05-14 | 878-307-9XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | ROCHESTER | PA |
| 2026-05-14 | 878-545-0XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | WASHINGTON | PA |
| 2026-05-14 | 878-545-1XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | WASHINGTON | PA |
| 2026-05-14 | 878-545-2XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | WASHINGTON | PA |
| 2026-05-14 | 904-617-8XXX | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | ST JOHNS | FL |
| 2026-05-14 | 904-617-9XXX | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | ST JOHNS | FL |
| 2026-05-14 | 928-970-3XXX | TERRA NOVA TELECOM INC. | 145J | PAYSON | AZ |
| 2026-05-14 | 938-303-6XXX | TELEPORT COMMUNICATIONS AMERICA, LLC - AL | 8271 | MADISON | AL |
| 2026-05-14 | 949-879-1XXX | BANDWIDTH.COM CLEC, LLC - CA | 981E | LAGUNA BCH | CA |
| 2026-05-14 | 983-233-0XXX | VOIP INNOVATIONS, LLC | 597F | DENVER | CO |
| 2026-05-13 | 209-580-8XXX | BANDWIDTH.COM CLEC, LLC - CA | 981E | MERCED | CA |
| 2026-05-13 | 223-393-3XXX | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | LEBANON | PA |
| 2026-05-13 | 227-291-8XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | FRIENDSVL | MD |
| 2026-05-13 | 248-434-4XXX | TERRA NOVA TELECOM INC. | 145J | TROY | MI |
| 2026-05-13 | 262-531-7XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RACINE | WI |
| 2026-05-13 | 270-539-1XXX | ONVOY, LLC - KY | 896E | ADAIRVILLE | KY |
| 2026-05-13 | 270-657-0XXX | ONVOY, LLC - KY | 896E | DUNMOR | KY |
| 2026-05-13 | 270-728-0XXX | ONVOY, LLC - KY | 896E | LOGANSPORT | KY |
| 2026-05-13 | 270-755-1XXX | ONVOY, LLC - KY | 896E | LEWISBRG | KY |
| 2026-05-13 | 270-934-0XXX | ONVOY, LLC - KY | 896E | ROCHESTER | KY |
| 2026-05-13 | 279-288-5XXX | BANDWIDTH.COM CLEC, LLC - CA | 981E | SCRM MAIN | CA |
| 2026-05-13 | 302-717-9XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MIDDLETOWN | DE |
| 2026-05-13 | 346-905-5XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRING | TX |
| 2026-05-13 | 346-905-6XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRING | TX |
| 2026-05-13 | 346-905-7XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRING | TX |
| 2026-05-13 | 350-240-3XXX | BANDWIDTH.COM CLEC, LLC - CA | 981E | TURLOCK | CA |
| 2026-05-13 | 350-254-0XXX | BANDWIDTH.COM CLEC, LLC - CA | 981E | TRACY | CA |
| 2026-05-13 | 409-682-8XXX | TERRA NOVA TELECOM INC. | 145J | GALVESTON | TX |
| 2026-05-13 | 415-213-3XXX | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC MT-EV | CA |
| 2026-05-13 | 415-432-1XXX | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2026-05-13 | 417-750-4XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRINGFLD | MO |
| 2026-05-13 | 417-750-5XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRINGFLD | MO |
| 2026-05-13 | 417-750-6XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRINGFLD | MO |
| 2026-05-13 | 417-750-7XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRINGFLD | MO |
| 2026-05-13 | 445-279-2XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PHPHSBZN43 | PA |
| 2026-05-13 | 445-279-4XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PHPHSBZN43 | PA |
| 2026-05-13 | 445-279-5XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PHPHSBZN43 | PA |
| 2026-05-13 | 448-251-2XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | FTWALTNBCH | FL |
| 2026-05-13 | 448-251-3XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | FTWALTNBCH | FL |
| 2026-05-13 | 484-466-7XXX | BANDWIDTH.COM CLEC, LLC - PA | 002F | PHPHSBZN17 | PA |
| 2026-05-13 | 501-645-9XXX | TERRA NOVA TELECOM INC. | 145J | MORRILTON | AR |
| 2026-05-13 | 502-914-9XXX | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | GEORGETOWN | KY |
| 2026-05-13 | 508-448-2XXX | TERRA NOVA TELECOM INC. | 145J | REHOBOTH | MA |
| 2026-05-13 | 515-384-8XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | WINTERSET | IA |
| 2026-05-13 | 530-307-7XXX | BANDWIDTH.COM CLEC, LLC - CA | 981E | SOUTHTAHOE | CA |
| 2026-05-13 | 559-957-8XXX | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TIVYVALLEY | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 2026-04 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.