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 |
|---|---|---|---|---|---|
| 2017-02-07 | 518-648-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | INDIANLAKE | NY |
| 2017-01-31 | 518-654-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | CORINTH | NY |
| 2017-01-24 | 516-548-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN06 | NY |
| 2017-01-24 | 716-666-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | GOWANDA | NY |
| 2016-12-08 | 646-968-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN01 | NY |
| 2016-12-08 | 646-968-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN01 | NY |
| 2016-11-10 | 646-813-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN01 | NY |
| 2016-09-14 | 929-397-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2016-08-31 | 646-966-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN01 | NY |
| 2016-08-18 | 929-398-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN10 | NY |
| 2016-08-03 | 315-936-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | MEXICO | NY |
| 2016-08-01 | 315-677-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | LAFAYETTE | NY |
| 2016-08-01 | 716-350-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ELLICOTTVL | NY |
| 2016-07-28 | 607-948-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | WAVERLY | NY |
| 2016-07-13 | 631-307-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | PATCHOGUE | NY |
| 2016-04-27 | 929-305-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2016-04-13 | 315-544-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | CARTHAGE | NY |
| 2016-04-13 | 845-572-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | CHESTER | NY |
| 2016-04-12 | 646-802-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN01 | NY |
| 2016-04-11 | 585-736-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ROCHESTER | NY |
| 2016-04-11 | 646-802-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN01 | NY |
| 2016-04-11 | 646-802-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN01 | NY |
| 2016-03-30 | 646-802-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN01 | NY |
| 2016-03-30 | 646-802-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN01 | NY |
| 2016-03-30 | 646-802-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN01 | NY |
| 2016-03-30 | 929-303-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN03 | NY |
| 2016-03-28 | 929-302-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY |
| 2016-03-01 | 646-603-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN01 | NY |
| 2016-03-01 | 716-395-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | LANCASTER | NY |
| 2016-03-01 | 929-343-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN13 | NY |
| 2016-02-17 | 607-358-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BIG FLATS | NY |
| 2016-02-10 | 929-208-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY |
| 2016-01-22 | 646-954-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN01 | NY |
| 2016-01-19 | 646-618-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN01 | NY |
| 2016-01-19 | 646-618-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN01 | NY |
| 2016-01-19 | 917-534-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN01 | NY |
| 2016-01-06 | 518-218-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | COLONIE | NY |
| 2015-12-14 | 845-792-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | PIERMONT | NY |
| 2015-11-30 | 516-226-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN07 | NY |
| 2015-11-13 | 518-840-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | WARRENSBG | NY |
| 2015-11-09 | 518-815-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ALBANY | NY |
| 2015-10-29 | 518-692-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | GREENWICH | NY |
| 2015-10-09 | 518-599-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ALBANY | NY |
| 2015-09-24 | 516-667-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN05 | NY |
| 2015-09-24 | 518-599-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ALBANY | NY |
| 2015-09-24 | 716-398-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BUFFALO | NY |
| 2015-09-15 | 631-992-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | DEER PARK | NY |
| 2015-09-14 | 646-677-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN01 | NY |
| 2015-09-14 | 646-677-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN01 | NY |
| 2015-09-14 | 646-677-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN01 | 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.