NumberResearchRecent thousands-block assignments
2 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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, last 30 days — NPA 260
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 |
|---|---|---|---|---|---|---|---|
| 2026-08-28 | 260-288-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | BUTLER | IN |
| 2026-08-28 | 260-390-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | OSSIAN | IN |
| 2018-09-06 | 260-909-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | AUBURN | IN |
| 2018-03-21 | 260-994-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | AVILLA | IN |
| 2017-07-06 | 260-633-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | HUNTERTOWN | IN |
| 2016-06-13 | 260-412-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | ASHLEY | IN |
| 2016-02-04 | 260-214-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | LAGRANGE | IN |
| 2016-01-29 | 260-202-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | PORTLAND | IN |
| 2015-06-24 | 260-702-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | FORT WAYNE | IN |
| 2015-03-18 | 260-274-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | WABASH | IN |
| 2014-12-08 | 260-508-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | ALBION | IN |
| 2014-03-10 | 260-616-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | ARCOLA | IN |
| 2013-12-13 | 260-623-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | MONROEVL | IN |
| 2013-11-15 | 260-702-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | FORT WAYNE | IN |
| 2013-07-01 | 260-544-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | KENDALLVL | IN |
| 2013-01-31 | 260-706-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | DECATUR | IN |
| 2012-12-11 | 260-905-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | ANGOLA | IN |
| 2012-07-18 | 260-498-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | FORT WAYNE | IN |
| 2012-03-21 | 260-245-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | NEW HAVEN | IN |
| 2011-11-17 | 260-676-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | ROANOKE | IN |
| 2011-01-05 | 260-247-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | FORT WAYNE | IN |
| 2010-12-15 | 260-553-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | GARRETT | IN |
| 2009-07-21 | 260-247-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | FORT WAYNE | IN |
| 2003-10-28 | 260-247-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | FORT WAYNE | IN |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.