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 |
|---|---|---|---|---|---|
| 2012-11-09 | 917-634-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN04 | NY |
| 2012-11-06 | 917-246-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2012-11-06 | 917-246-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2012-11-02 | 917-246-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2012-10-15 | 917-634-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN04 | NY |
| 2012-08-21 | 631-886-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | WADING RIV | NY |
| 2012-08-16 | 315-401-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SYRACUSE | NY |
| 2012-07-09 | 716-217-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ANGOLA | NY |
| 2012-06-28 | 516-743-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN05 | NY |
| 2012-06-21 | 315-285-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | CLAYTON | NY |
| 2012-06-21 | 315-522-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | GOUVERNEUR | NY |
| 2012-06-15 | 347-997-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN10 | NY |
| 2012-06-12 | 585-397-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ROCHESTER | NY |
| 2012-06-11 | 607-689-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | OWEGO | NY |
| 2012-06-07 | 917-819-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN03 | NY |
| 2012-05-15 | 518-417-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ALBANY | NY |
| 2012-05-10 | 607-240-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BINGHAMTON | NY |
| 2012-05-07 | 518-313-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | COLONIE | NY |
| 2012-04-27 | 917-702-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN07 | NY |
| 2012-04-26 | 716-810-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | WILLIAMSVL | NY |
| 2012-04-26 | 917-722-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN14 | NY |
| 2012-04-25 | 516-743-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN05 | NY |
| 2012-04-20 | 631-468-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | RONKONKOMA | NY |
| 2012-04-16 | 716-676-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | FRANKLINVL | NY |
| 2012-04-05 | 716-262-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BUFFALO | NY |
| 2012-04-02 | 585-441-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ROCHESTER | NY |
| 2012-03-28 | 347-897-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN13 | NY |
| 2012-03-13 | 518-984-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | TICONDROGA | NY |
| 2012-02-21 | 585-371-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ROCHESTER | NY |
| 2012-02-10 | 607-654-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | CORNING | NY |
| 2012-02-02 | 518-406-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | JONESVILLE | NY |
| 2012-01-31 | 518-545-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ALBANY | NY |
| 2012-01-30 | 347-685-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN10 | NY |
| 2012-01-30 | 516-405-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN03 | NY |
| 2012-01-17 | 845-605-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | MILLBROOK | NY |
| 2012-01-06 | 845-224-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | POUGHKEPSI | NY |
| 2011-12-27 | 315-605-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | OGDENSBURG | NY |
| 2011-12-27 | 315-690-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NEWARK | NY |
| 2011-12-27 | 929-221-0XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2011-12-27 | 929-221-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2011-12-27 | 929-221-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2011-12-27 | 929-221-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2011-12-27 | 929-221-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2011-12-27 | 929-221-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2011-12-27 | 929-221-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2011-12-27 | 929-221-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2011-12-27 | 929-221-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2011-12-27 | 929-221-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2011-12-05 | 347-955-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2011-12-02 | 631-416-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BRENTWOOD | 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.