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 |
|---|---|---|---|---|---|
| 2011-11-21 | 607-228-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | WATKISGLEN | NY |
| 2011-11-18 | 917-688-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN03 | NY |
| 2011-11-16 | 518-625-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | CATSKILL | NY |
| 2011-11-16 | 845-795-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | MILTON | NY |
| 2011-11-16 | 914-810-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | CRTNONHDSN | NY |
| 2011-11-08 | 585-283-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ALBION | NY |
| 2011-10-24 | 315-274-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | POTSDAM | NY |
| 2011-10-07 | 718-737-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN14 | NY |
| 2011-10-07 | 917-563-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN09 | NY |
| 2011-09-26 | 585-310-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | EROCHESTER | NY |
| 2011-09-07 | 631-760-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | HUNTINGTON | NY |
| 2011-07-13 | 315-400-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | FAYETTEVL | NY |
| 2011-07-13 | 518-267-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | HUDSON | NY |
| 2011-07-13 | 585-438-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | AVON | NY |
| 2011-07-13 | 585-888-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SCOTTSVL | NY |
| 2011-06-16 | 516-493-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN05 | NY |
| 2011-06-16 | 516-493-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN05 | NY |
| 2011-06-09 | 914-352-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7650 | YORKTN HTS | NY |
| 2011-06-09 | 914-352-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7650 | YORKTN HTS | NY |
| 2011-06-09 | 914-352-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7650 | YORKTN HTS | NY |
| 2011-06-06 | 631-394-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | YAPHANK | NY |
| 2011-05-03 | 315-741-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SYRACUSE | NY |
| 2011-03-11 | 315-291-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SKANEATLES | NY |
| 2011-03-11 | 607-965-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | EDMESTON | NY |
| 2011-03-01 | 607-622-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BATH | NY |
| 2011-02-23 | 631-405-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | RIVERHEAD | NY |
| 2011-01-24 | 845-474-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | PEARLRIVER | NY |
| 2011-01-17 | 716-243-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | TONAWANDA | NY |
| 2011-01-11 | 585-957-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ROCHESTER | NY |
| 2010-12-22 | 631-391-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | FARMINGDL | NY |
| 2010-11-23 | 518-649-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ALBANY | NY |
| 2010-11-10 | 347-763-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2010-11-08 | 845-512-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NYACK | NY |
| 2010-11-04 | 347-708-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN03 | NY |
| 2010-10-14 | 631-688-0XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | FARMINGDL | NY |
| 2010-10-14 | 631-688-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | FARMINGDL | NY |
| 2010-10-14 | 914-919-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7650 | PLEASANTVL | NY |
| 2010-10-13 | 631-762-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | STONYBROOK | NY |
| 2010-09-27 | 315-915-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | CICERO | NY |
| 2010-09-27 | 347-379-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN09 | NY |
| 2010-09-17 | 347-396-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY |
| 2010-09-17 | 347-396-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY |
| 2010-07-19 | 347-382-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2010-07-13 | 845-684-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | WOODSTOCK | NY |
| 2010-07-12 | 585-204-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | DANSVILLE | NY |
| 2010-07-12 | 716-584-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SALAMANCA | NY |
| 2010-06-24 | 917-791-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN14 | NY |
| 2010-06-21 | 845-213-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NEW CITY | NY |
| 2010-06-14 | 347-569-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN07 | NY |
| 2010-06-09 | 347-620-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN15 | 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.