NumberResearchRecent thousands-block assignments
3,379 blocks assigned in May 2026 · from the daily NANPA thousands-block report, 09/18/2026
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
Sep 2026
Aug 2026
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| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2026-05-08 | 475-397-8XXX | BANDWIDTH.COM CLEC, LLC - CT | 199F | NORWALK | CT |
| 2026-05-08 | 475-398-8XXX | BANDWIDTH.COM CLEC, LLC - CT | 199F | HUNTINGTON | CT |
| 2026-05-08 | 508-209-9XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | PLYMOUTH | MA |
| 2026-05-08 | 540-485-3XXX | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | CULPEPER | VA |
| 2026-05-08 | 551-433-2XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HACKENSACK | NJ |
| 2026-05-08 | 551-433-3XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HACKENSACK | NJ |
| 2026-05-08 | 551-433-4XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HACKENSACK | NJ |
| 2026-05-08 | 551-433-5XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HACKENSACK | NJ |
| 2026-05-08 | 551-433-7XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HACKENSACK | NJ |
| 2026-05-08 | 559-938-9XXX | BANDWIDTH.COM CLEC, LLC - CA | 981E | CLOVIS | CA |
| 2026-05-08 | 559-983-0XXX | BANDWIDTH.COM CLEC, LLC - CA | 981E | DINUBA | CA |
| 2026-05-08 | 559-996-9XXX | BANDWIDTH.COM CLEC, LLC - CA | 981E | CORCORAN | CA |
| 2026-05-08 | 571-680-6XXX | BANDWIDTH.COM CLEC, LLC - VA | 079F | LEESBURG | VA |
| 2026-05-08 | 571-708-5XXX | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | DALE CITY | VA |
| 2026-05-08 | 571-708-7XXX | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | DALE CITY | VA |
| 2026-05-08 | 571-708-8XXX | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | DALE CITY | VA |
| 2026-05-08 | 571-770-9XXX | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | LEESBURG | VA |
| 2026-05-08 | 571-850-2XXX | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | LEESBURG | VA |
| 2026-05-08 | 605-603-0XXX | BANDWIDTH.COM CLEC, LLC - SD | 106F | RAPID CITY | SD |
| 2026-05-08 | 608-553-6XXX | T-MOBILE USA, INC. | 6529 | DODGEVILLE | WI |
| 2026-05-08 | 608-929-2XXX | T-MOBILE USA, INC. | 6529 | HIGHLAND | WI |
| 2026-05-08 | 608-951-8XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GALESVILLE | WI |
| 2026-05-08 | 609-236-5XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | ATLNTIC CY | NJ |
| 2026-05-08 | 615-312-9XXX | BANDWIDTH.COM CLEC, LLC - TN | 124F | NASHVILLE | TN |
| 2026-05-08 | 615-345-2XXX | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | NASHVILLE | TN |
| 2026-05-08 | 616-398-7XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GRANDHAVEN | MI |
| 2026-05-08 | 618-688-6XXX | BANDWIDTH.COM CLEC, LLC - IL | 984E | EDGEMONT | IL |
| 2026-05-08 | 618-981-6XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GRANITE CY | IL |
| 2026-05-08 | 618-981-7XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GRANITE CY | IL |
| 2026-05-08 | 618-990-1XXX | BANDWIDTH.COM CLEC, LLC - IL | 984E | WOOD RIVER | IL |
| 2026-05-08 | 629-270-5XXX | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | NASHVILLE | TN |
| 2026-05-08 | 629-270-6XXX | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | NASHVILLE | TN |
| 2026-05-08 | 629-275-8XXX | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | NASHVILLE | TN |
| 2026-05-08 | 629-275-9XXX | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | NASHVILLE | TN |
| 2026-05-08 | 629-288-5XXX | BANDWIDTH.COM CLEC, LLC - TN | 124F | GALLATIN | TN |
| 2026-05-08 | 629-299-8XXX | BANDWIDTH.COM CLEC, LLC - TN | 124F | FRANKLIN | TN |
| 2026-05-08 | 629-338-2XXX | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | NASHVILLE | TN |
| 2026-05-08 | 629-339-5XXX | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | NASHVILLE | TN |
| 2026-05-08 | 629-339-6XXX | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | NASHVILLE | TN |
| 2026-05-08 | 629-876-5XXX | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | NASHVILLE | TN |
| 2026-05-08 | 640-271-6XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WILDWOOD | NJ |
| 2026-05-08 | 640-291-2XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | MOUNTHOLLY | NJ |
| 2026-05-08 | 651-498-8XXX | BANDWIDTH.COM CLEC, LLC - MN | 980E | STILLWATER | MN |
| 2026-05-08 | 657-998-0XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SANTA ANA | CA |
| 2026-05-08 | 657-998-1XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SANTA ANA | CA |
| 2026-05-08 | 657-998-2XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SANTA ANA | CA |
| 2026-05-08 | 657-998-3XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SANTA ANA | CA |
| 2026-05-08 | 657-998-4XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SANTA ANA | CA |
| 2026-05-08 | 657-998-5XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SANTA ANA | CA |
| 2026-05-08 | 657-998-6XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SANTA ANA | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.