NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · 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.
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| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2019-10-22 | 929-517-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2019-10-22 | 929-517-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2019-10-22 | 929-517-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2019-10-22 | 929-517-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2019-10-22 | 929-517-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2019-10-02 | 680-210-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | WATERTOWN | NY |
| 2019-08-02 | 518-713-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | COLONIE | NY |
| 2019-04-11 | 716-608-0XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | WESTSENECA | NY |
| 2019-03-21 | 518-652-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | MECHANICVL | NY |
| 2019-03-11 | 929-514-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY |
| 2019-03-11 | 929-514-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY |
| 2019-03-06 | 914-369-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | WSCHSTZN01 | NY |
| 2019-03-01 | 914-873-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7650 | WSCHSTZN06 | NY |
| 2019-02-26 | 516-517-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN06 | NY |
| 2019-02-21 | 315-957-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | MASSENA | NY |
| 2019-02-21 | 929-514-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY |
| 2019-02-21 | 929-514-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY |
| 2019-02-21 | 929-514-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY |
| 2019-02-21 | 929-514-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY |
| 2019-02-21 | 929-514-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY |
| 2019-02-13 | 607-652-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | STAMFORD | NY |
| 2019-01-08 | 315-997-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ONTARIO | NY |
| 2019-01-08 | 518-990-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | MOIRA | NY |
| 2018-11-29 | 929-489-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2018-11-26 | 929-467-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN10 | NY |
| 2018-11-13 | 845-539-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | LIBERTY | NY |
| 2018-11-05 | 631-825-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | MONTAUK PT | NY |
| 2018-10-10 | 917-444-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN11 | NY |
| 2018-10-03 | 680-222-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | WATERTOWN | NY |
| 2018-10-03 | 680-222-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | WATERTOWN | NY |
| 2018-09-27 | 315-895-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ILION | NY |
| 2018-09-05 | 585-470-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ROCHESTER | NY |
| 2018-08-27 | 631-684-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | WESTHAMPTN | NY |
| 2018-08-08 | 929-482-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN14 | NY |
| 2018-08-02 | 929-219-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN04 | NY |
| 2018-08-02 | 929-463-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY |
| 2018-07-26 | 914-875-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SOUTHSALEM | NY |
| 2018-07-26 | 929-480-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2018-07-17 | 585-450-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ROCHESTER | NY |
| 2018-06-27 | 929-479-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN07 | NY |
| 2018-06-22 | 315-424-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SYRACUSE | NY |
| 2018-06-19 | 607-202-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SIDNEY | NY |
| 2018-06-15 | 607-371-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NORWICH | NY |
| 2018-06-15 | 607-875-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | GREENE | NY |
| 2018-06-07 | 631-479-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | HUNTINGTON | NY |
| 2018-05-21 | 518-808-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | FORT ANN | NY |
| 2018-05-14 | 929-624-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN15 | NY |
| 2018-05-10 | 607-424-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | GRANDGORGE | NY |
| 2018-05-07 | 518-418-0XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | LAKEPLACID | NY |
| 2018-04-23 | 518-548-0XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | LKPLEASANT | NY |
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.