NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/26/2026
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 704
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2019-06-17 | 704-521-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2015-08-20 | 704-967-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | BELMONT | NC |
| 2014-02-03 | 704-672-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2014-01-08 | 704-496-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2013-09-04 | 704-417-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2013-09-04 | 704-503-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2012-04-02 | 704-626-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2012-04-02 | 704-626-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2012-04-02 | 704-626-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2011-09-20 | 704-620-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2010-06-23 | 704-612-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2010-06-23 | 704-612-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2010-06-23 | 704-612-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2010-06-23 | 704-612-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2010-02-19 | 704-705-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2010-02-19 | 704-705-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2009-06-22 | 704-247-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2008-12-03 | 704-809-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | DENVER | NC |
| 2008-12-01 | 704-980-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | TROUTMAN | NC |
| 2008-10-24 | 704-353-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2008-10-24 | 704-547-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2008-10-24 | 704-665-1XXX | 1000–1999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2008-10-24 | 704-817-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2008-10-24 | 704-817-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2008-10-24 | 704-916-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2007-03-21 | 704-360-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | MOORESVL | NC |
| 2007-02-14 | 704-208-1XXX | 1000–1999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2007-02-14 | 704-208-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2007-02-14 | 704-208-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2007-02-14 | 704-208-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2007-02-14 | 704-804-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2007-02-12 | 704-691-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | GASTONIA | NC |
| 2006-12-08 | 704-218-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | MONROE | NC |
| 2006-12-06 | 704-443-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | MATTHEWS | NC |
| 2006-12-05 | 704-886-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CONCORD | NC |
| 2006-11-22 | 704-405-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2006-11-22 | 704-405-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2006-11-09 | 704-443-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | MATTHEWS | NC |
| 2006-10-25 | 704-886-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CONCORD | NC |
| 2006-10-17 | 704-972-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2006-05-22 | 704-912-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | HUNTERSVL | NC |
| 2006-04-18 | 704-218-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | MONROE | NC |
| 2006-03-24 | 704-324-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | WINGATE | NC |
| 2006-03-23 | 704-327-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | MARSHVILLE | NC |
| 2006-03-09 | 704-209-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | GRTQRRCKWL | NC |
| 2006-03-09 | 704-243-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | WAXHAW | NC |
| 2006-03-09 | 704-246-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | MATTHEWS | NC |
| 2006-03-09 | 704-465-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | WADESBORO | NC |
| 2006-03-09 | 704-628-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | HEMBY BDG | NC |
| 2006-03-09 | 704-684-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | INDIANTRAL | NC |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.