NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
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 319
New assignments by month
Sep 2026
Aug 2026
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Jun 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2021-04-12 | 319-301-1XXX | 1000–1999 | Assigned | MCC TELEPHONY LLC | 593K | SO ENGLISH | IA |
| 2021-04-05 | 319-738-4XXX | 4000–4999 | Assigned | MCC TELEPHONY LLC | 593K | KESWICK | IA |
| 2019-06-14 | 319-300-4XXX | 4000–4999 | Assigned | MCC TELEPHONY LLC | 593K | WATERLOO | IA |
| 2018-12-05 | 319-289-8XXX | 8000–8999 | Assigned | MCC TELEPHONY LLC | 593K | CEDAR RPDS | IA |
| 2018-08-15 | 319-569-4XXX | 4000–4999 | Assigned | MCC TELEPHONY LLC | 593K | IOWA CITY | IA |
| 2018-07-27 | 319-449-9XXX | 9000–9999 | Assigned | MCC TELEPHONY LLC | 593K | CEDAR RPDS | IA |
| 2018-06-15 | 319-595-1XXX | 1000–1999 | Assigned | MCC TELEPHONY LLC | 593K | WATERLOO | IA |
| 2018-03-05 | 319-569-2XXX | 2000–2999 | Assigned | MCC TELEPHONY LLC | 593K | IOWA CITY | IA |
| 2018-01-11 | 319-775-4XXX | 4000–4999 | Assigned | MCC TELEPHONY LLC | 593K | CEDAR RPDS | IA |
| 2017-12-04 | 319-888-1XXX | 1000–1999 | Assigned | MCC TELEPHONY LLC | 593K | WATERLOO | IA |
| 2017-11-09 | 319-320-9XXX | 9000–9999 | Assigned | MCC TELEPHONY LLC | 593K | CEDAR RPDS | IA |
| 2017-08-29 | 319-249-3XXX | 3000–3999 | Assigned | MCC TELEPHONY LLC | 593K | CEDAR RPDS | IA |
| 2017-06-07 | 319-249-1XXX | 1000–1999 | Assigned | MCC TELEPHONY LLC | 593K | CEDAR RPDS | IA |
| 2017-06-07 | 319-569-1XXX | 1000–1999 | Assigned | MCC TELEPHONY LLC | 593K | IOWA CITY | IA |
| 2017-05-31 | 319-888-4XXX | 4000–4999 | Assigned | MCC TELEPHONY LLC | 593K | WATERLOO | IA |
| 2017-03-01 | 319-449-5XXX | 5000–5999 | Assigned | MCC TELEPHONY LLC | 593K | CEDAR RPDS | IA |
| 2016-10-26 | 319-252-4XXX | 4000–4999 | Assigned | MCC TELEPHONY LLC | 593K | WATERLOO | IA |
| 2016-06-15 | 319-519-2XXX | 2000–2999 | Assigned | MCC TELEPHONY LLC | 593K | IOWA CITY | IA |
| 2016-05-17 | 319-320-7XXX | 7000–7999 | Assigned | MCC TELEPHONY LLC | 593K | CEDAR RPDS | IA |
| 2016-04-29 | 319-320-6XXX | 6000–6999 | Assigned | MCC TELEPHONY LLC | 593K | CEDAR RPDS | IA |
| 2015-08-25 | 319-449-4XXX | 4000–4999 | Assigned | MCC TELEPHONY LLC | 593K | CEDAR RPDS | IA |
| 2014-07-30 | 319-409-5XXX | 5000–5999 | Assigned | MCC TELEPHONY LLC | 593K | CEDAR RPDS | IA |
| 2013-06-17 | 319-505-2XXX | 2000–2999 | Assigned | MCC TELEPHONY LLC | 593K | WATERLOO | IA |
| 2012-11-09 | 319-826-6XXX | 6000–6999 | Assigned | MCC TELEPHONY LLC | 593K | CEDAR RPDS | IA |
| 2012-07-11 | 319-359-1XXX | 1000–1999 | Assigned | MCC TELEPHONY LLC | 593K | IOWA CITY | IA |
| 2011-11-28 | 319-826-3XXX | 3000–3999 | Assigned | MCC TELEPHONY LLC | 593K | CEDAR RPDS | IA |
| 2011-06-07 | 319-883-3XXX | 3000–3999 | Assigned | MCC TELEPHONY LLC | 593K | WATERLOO | IA |
| 2011-04-29 | 319-499-1XXX | 1000–1999 | Assigned | MCC TELEPHONY LLC | 593K | IOWA CITY | IA |
| 2011-04-08 | 319-826-2XXX | 2000–2999 | Assigned | MCC TELEPHONY LLC | 593K | CEDAR RPDS | IA |
| 2010-03-23 | 319-312-1XXX | 1000–1999 | Assigned | MCC TELEPHONY LLC | 593K | DYSART | IA |
| 2010-03-19 | 319-203-1XXX | 1000–1999 | Assigned | MCC TELEPHONY LLC | 593K | SWISHER | IA |
| 2010-03-19 | 319-285-1XXX | 1000–1999 | Assigned | MCC TELEPHONY LLC | 593K | SHARON CTR | IA |
| 2010-03-19 | 319-333-1XXX | 1000–1999 | Assigned | MCC TELEPHONY LLC | 593K | IOWA CITY | IA |
| 2010-03-19 | 319-779-1XXX | 1000–1999 | Assigned | MCC TELEPHONY LLC | 593K | KALONA | IA |
| 2010-03-19 | 319-844-1XXX | 1000–1999 | Assigned | MCC TELEPHONY LLC | 593K | MONTICELLO | IA |
| 2010-03-17 | 319-225-8XXX | 8000–8999 | Assigned | MCC TELEPHONY LLC | 593K | AMANA | IA |
| 2010-03-17 | 319-322-9XXX | 9000–9999 | Assigned | MCC TELEPHONY LLC | 593K | NORWAY | IA |
| 2010-03-17 | 319-328-9XXX | 9000–9999 | Assigned | MCC TELEPHONY LLC | 593K | NEWHALL | IA |
| 2010-03-17 | 319-345-0XXX | 0000–0999 | Assigned | MCC TELEPHONY LLC | 593K | REINBECK | IA |
| 2010-03-17 | 319-347-8XXX | 8000–8999 | Assigned | MCC TELEPHONY LLC | 593K | APLINGTON | IA |
| 2010-03-17 | 319-357-8XXX | 8000–8999 | Assigned | MCC TELEPHONY LLC | 593K | FAIRFAX | IA |
| 2010-03-17 | 319-444-7XXX | 7000–7999 | Assigned | MCC TELEPHONY LLC | 593K | BELLEPLAIN | IA |
| 2010-03-17 | 319-478-0XXX | 0000–0999 | Assigned | MCC TELEPHONY LLC | 593K | TRAER | IA |
| 2010-03-17 | 319-495-8XXX | 8000–8999 | Assigned | MCC TELEPHONY LLC | 593K | LAPORTE CY | IA |
| 2010-03-17 | 319-585-8XXX | 8000–8999 | Assigned | MCC TELEPHONY LLC | 593K | HAZLETON | IA |
| 2010-03-17 | 319-628-0XXX | 0000–0999 | Assigned | MCC TELEPHONY LLC | 593K | OXFORD | IA |
| 2010-03-17 | 319-635-0XXX | 0000–0999 | Assigned | MCC TELEPHONY LLC | 593K | FAIRBANK | IA |
| 2010-03-17 | 319-642-0XXX | 0000–0999 | Assigned | MCC TELEPHONY LLC | 593K | MARENGO | IA |
| 2010-03-17 | 319-644-8XXX | 8000–8999 | Assigned | MCC TELEPHONY LLC | 593K | SOLON | IA |
| 2010-03-17 | 319-645-0XXX | 0000–0999 | Assigned | MCC TELEPHONY LLC | 593K | TIFFIN | IA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.