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.
Most active assignees, all time
New assignments by month
Sep 2026
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| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2018-04-10 | 718-500-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2018-03-28 | 845-836-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | WAPIGRSFLS | NY |
| 2018-03-26 | 315-275-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | UTICA | NY |
| 2018-03-21 | 315-968-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | PARISH | NY |
| 2018-03-19 | 845-272-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ELLENVILLE | NY |
| 2018-03-19 | 914-685-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7650 | YORKTN HTS | NY |
| 2018-03-14 | 315-468-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SYRACUSE | NY |
| 2018-03-14 | 929-463-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY |
| 2018-03-14 | 929-467-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN10 | NY |
| 2018-03-12 | 516-460-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN02 | NY |
| 2018-03-12 | 516-636-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN09 | NY |
| 2018-02-28 | 929-464-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN14 | NY |
| 2018-02-20 | 518-704-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ALBANY | NY |
| 2018-02-15 | 516-407-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN01 | NY |
| 2018-02-06 | 516-758-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN03 | NY |
| 2018-01-29 | 929-460-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN12 | NY |
| 2017-12-29 | 929-417-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN07 | NY |
| 2017-12-22 | 315-907-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SYRACUSE | NY |
| 2017-12-22 | 929-419-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2017-12-15 | 929-380-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN09 | NY |
| 2017-12-12 | 845-999-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NEW CITY | NY |
| 2017-11-16 | 631-381-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | RIVERHEAD | NY |
| 2017-10-11 | 929-458-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN03 | NY |
| 2017-10-09 | 315-627-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | MINOA | NY |
| 2017-08-30 | 929-457-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2017-08-25 | 929-456-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN10 | NY |
| 2017-08-21 | 716-496-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | CHAFFEE | NY |
| 2017-08-18 | 716-337-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NO COLLINS | NY |
| 2017-08-18 | 716-575-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | EDEN | NY |
| 2017-08-18 | 716-599-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SPRINGVL | NY |
| 2017-08-09 | 929-666-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY |
| 2017-07-31 | 585-656-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ATTICA | NY |
| 2017-07-31 | 716-293-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | CLARENCE | NY |
| 2017-07-25 | 607-645-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ITHACA | NY |
| 2017-07-10 | 845-261-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | HIGHLAND | NY |
| 2017-06-26 | 716-466-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | HOLLAND | NY |
| 2017-06-26 | 716-902-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ALDEN | NY |
| 2017-06-06 | 845-310-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7650 | WINGDALE | NY |
| 2017-05-30 | 631-931-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | E HAMPTON | NY |
| 2017-05-30 | 914-229-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | WSCHSTZN03 | NY |
| 2017-05-05 | 929-308-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN14 | NY |
| 2017-04-14 | 585-986-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | RUSH | NY |
| 2017-04-11 | 585-357-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ALBION | NY |
| 2017-04-05 | 845-681-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SAUGERTIES | NY |
| 2017-04-03 | 929-447-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN05 | NY |
| 2017-03-29 | 929-452-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN03 | NY |
| 2017-03-08 | 585-537-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ROCHESTER | NY |
| 2017-03-08 | 929-397-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2017-03-08 | 929-437-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN07 | NY |
| 2017-03-07 | 315-937-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SYRACUSE | 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.