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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Sep 2026
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| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2008-09-12 | 845-478-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NORTHCLOVE | NY |
| 2008-09-12 | 845-593-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | PAWLING | NY |
| 2008-09-12 | 845-765-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BEACON | NY |
| 2008-08-25 | 347-772-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN04 | NY |
| 2008-08-22 | 347-294-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2008-08-22 | 347-294-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2008-08-22 | 347-294-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2008-08-18 | 315-715-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | LIVERPOOL | NY |
| 2008-08-14 | 518-649-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ALBANY | NY |
| 2008-08-14 | 607-873-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ELMIRA | NY |
| 2008-08-14 | 845-618-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SLOATSBURG | NY |
| 2008-08-11 | 315-230-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | GENEVA | NY |
| 2008-08-11 | 315-889-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | UNION SPG | NY |
| 2008-07-31 | 631-731-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | AMAGANSETT | NY |
| 2008-07-28 | 516-858-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN01 | NY |
| 2008-07-28 | 845-481-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | KINGSTON | NY |
| 2008-07-01 | 315-231-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ONEIDA | NY |
| 2008-07-01 | 315-320-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | CAMILLUS | NY |
| 2008-07-01 | 315-619-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | HERKIMER | NY |
| 2008-07-01 | 607-218-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | CORTLAND | NY |
| 2008-06-17 | 845-915-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | TUXEDO | NY |
| 2008-05-14 | 718-673-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN13 | NY |
| 2008-04-07 | 347-542-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN09 | NY |
| 2008-04-07 | 347-554-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN07 | NY |
| 2008-04-07 | 718-301-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN10 | NY |
| 2008-04-07 | 718-569-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN15 | NY |
| 2008-04-07 | 718-673-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN13 | NY |
| 2008-04-07 | 718-684-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN04 | NY |
| 2008-04-07 | 917-423-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN14 | NY |
| 2008-02-12 | 631-377-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SOUTHAMPTN | NY |
| 2008-01-15 | 631-377-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SOUTHAMPTN | NY |
| 2007-12-26 | 845-580-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | PIERMONT | NY |
| 2007-12-21 | 845-284-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | LAKELAND | NY |
| 2007-12-21 | 914-276-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | CROTON FLS | NY |
| 2007-12-21 | 914-402-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | PEEKSKILL | NY |
| 2007-12-21 | 914-483-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | MAHOPAC | NY |
| 2007-12-21 | 914-485-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NORTHSALEM | NY |
| 2007-12-20 | 585-398-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | VICTOR | NY |
| 2007-12-20 | 845-495-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | PATTERSON | NY |
| 2007-12-18 | 845-201-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | PEARLRIVER | NY |
| 2007-12-18 | 845-207-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BREWSTER | NY |
| 2007-12-18 | 845-208-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | MAHOPAC | NY |
| 2007-12-18 | 845-271-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | HAVERSTRAW | NY |
| 2007-12-18 | 845-501-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NANUET | NY |
| 2007-12-18 | 845-520-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | CARMEL | NY |
| 2007-12-18 | 845-533-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SUFFERN | NY |
| 2007-12-18 | 845-570-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NEW CITY | NY |
| 2007-12-18 | 845-584-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | CONGERS | NY |
| 2007-12-18 | 845-595-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | GREENWD LK | NY |
| 2007-12-18 | 845-617-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | CROTON FLS | 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.