NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/25/2026
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 — NPA 419
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2019-05-13 | 419-567-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | PAULDING | OH |
| 2017-07-19 | 419-322-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | TOLEDO | OH |
| 2016-12-13 | 419-401-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | METAMORA | OH |
| 2015-02-04 | 419-714-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | STONYRIDGE | OH |
| 2015-01-05 | 419-540-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | SYLVANIA | OH |
| 2014-10-28 | 419-607-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | OAK HARBOR | OH |
| 2014-05-27 | 419-960-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | PT CLINTON | OH |
| 2014-03-13 | 419-583-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | WAUSEON | OH |
| 2011-04-21 | 419-402-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | SWANTON | OH |
| 2011-04-21 | 419-441-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | WATERVILLE | OH |
| 2010-04-22 | 419-954-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | NEW BREMEN | OH |
| 2010-02-04 | 419-789-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | DEFIANCE | OH |
| 2010-01-11 | 419-717-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | NAPOLEON | OH |
| 2006-09-18 | 419-581-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | FINDLAY | OH |
| 2006-05-10 | 419-496-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | ASHLAND | OH |
| 2006-05-03 | 419-679-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | KENTON | OH |
| 2006-05-02 | 419-773-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | CRIDERSVL | OH |
| 2006-02-24 | 419-318-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | SYLVANIA | OH |
| 2006-02-24 | 419-368-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | HAYESVILLE | OH |
| 2006-01-19 | 419-604-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | LIMA | OH |
| 2006-01-19 | 419-604-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | LIMA | OH |
| 2006-01-19 | 419-604-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | LIMA | OH |
| 2005-11-17 | 419-632-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | MANSFIELD | OH |
| 2005-11-17 | 419-632-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | MANSFIELD | OH |
| 2005-10-03 | 419-632-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MANSFIELD | OH |
| 2005-09-08 | 419-581-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | FINDLAY | OH |
| 2005-03-03 | 419-718-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | CARDINGTON | OH |
| 2005-02-28 | 419-687-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | PLYMOUTH | OH |
| 2005-02-28 | 419-909-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | ELIDA | OH |
| 2005-02-16 | 419-371-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | LIMA | OH |
| 2005-02-16 | 419-615-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | OTTAWA | OH |
| 2005-02-16 | 419-741-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | DELPHOS | OH |
| 2005-02-16 | 419-884-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | LEXINGTON | OH |
| 2005-02-15 | 419-293-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | MCCOMB | OH |
| 2005-02-15 | 419-584-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | CELINA | OH |
| 2005-02-15 | 419-617-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | BUCYRUS | OH |
| 2005-02-15 | 419-669-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | WESTON | OH |
| 2005-02-15 | 419-862-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | ELMORE | OH |
| 2005-02-11 | 419-210-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | MT GILEAD | OH |
| 2005-02-11 | 419-647-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | SPENCERVL | OH |
| 2004-11-24 | 419-257-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | NO BALTIMR | OH |
| 2004-09-03 | 419-288-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | WAYNEBRDNR | OH |
| 2004-09-03 | 419-552-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | FREMONT | OH |
| 2004-09-03 | 419-556-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | GIBSONBURG | OH |
| 2004-09-03 | 419-731-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | UPSANDUSKY | OH |
| 2004-09-03 | 419-807-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | BOWLNGGREN | OH |
| 2004-09-03 | 419-855-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | GENOA | OH |
| 2004-09-03 | 419-972-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | CURTICORGN | OH |
| 2004-08-24 | 419-405-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | CRESTLINE | OH |
| 2004-08-24 | 419-660-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | NORWALK | OH |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/25/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.