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 913
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 |
|---|---|---|---|---|---|---|---|
| 2023-07-21 | 913-427-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | KANSASCITY | KS |
| 2020-10-30 | 913-364-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | LEAVENWTH | KS |
| 2020-08-11 | 913-389-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | KANSASCITY | KS |
| 2019-12-11 | 913-374-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2019-05-13 | 913-348-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2018-05-30 | 913-300-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2018-05-30 | 913-300-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2018-05-30 | 913-300-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2018-05-30 | 913-300-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2018-05-30 | 913-300-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2018-02-09 | 913-355-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | OLATHE | KS |
| 2017-10-09 | 913-335-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2016-10-26 | 913-251-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2016-06-28 | 913-444-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2016-01-20 | 913-249-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2015-10-16 | 913-933-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | BASEHOR | KS |
| 2015-08-25 | 913-490-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | OLATHE | KS |
| 2015-08-20 | 913-242-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2015-08-13 | 913-298-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | BONNER SPG | KS |
| 2014-12-11 | 913-331-0XXX | 0000–0999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2014-12-11 | 913-331-1XXX | 1000–1999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2014-12-11 | 913-331-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2014-12-11 | 913-331-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2014-12-11 | 913-331-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2014-12-11 | 913-331-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2014-12-11 | 913-331-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2014-12-11 | 913-331-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2014-12-11 | 913-331-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2014-12-11 | 913-331-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2014-12-11 | 913-332-0XXX | 0000–0999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2014-12-11 | 913-332-1XXX | 1000–1999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2014-12-11 | 913-332-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2014-12-11 | 913-332-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2014-12-11 | 913-332-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2014-12-11 | 913-332-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2014-12-11 | 913-332-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2014-12-11 | 913-332-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2014-12-11 | 913-332-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2014-12-11 | 913-332-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2014-04-17 | 913-802-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2014-01-15 | 913-401-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2013-05-06 | 913-304-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2013-01-28 | 913-202-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2013-01-28 | 913-202-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2012-10-03 | 913-333-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2012-10-03 | 913-333-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2012-07-27 | 913-364-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | LEAVENWTH | KS |
| 2012-02-16 | 913-583-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | DE SOTO | KS |
| 2012-01-30 | 913-201-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
| 2011-11-02 | 913-998-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS | 7593 | KANSASCITY | KS |
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.