NumberResearchRecent thousands-block assignments
12 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, last 30 days — NPA 319
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 |
|---|---|---|---|---|---|---|---|
| 2018-01-31 | 319-316-6XXX | 6000–6999 | Assigned | ONVOY, LLC - IA | 221F | FT MADISON | IA |
| 2018-01-31 | 319-775-9XXX | 9000–9999 | Assigned | NUSO, LLC | 551G | CEDAR RPDS | IA |
| 2018-01-25 | 319-865-0XXX | 0000–0999 | Assigned | LOUISA COMMUNICATIONS, LC - IA | 4650 | MOUNTUNION | IA |
| 2018-01-25 | 319-865-2XXX | 2000–2999 | Assigned | LOUISA COMMUNICATIONS, LC - IA | 4650 | MOUNTUNION | IA |
| 2018-01-25 | 319-865-8XXX | 8000–8999 | Assigned | LOUISA COMMUNICATIONS, LC - IA | 4650 | MOUNTUNION | IA |
| 2018-01-25 | 319-865-9XXX | 9000–9999 | Assigned | LOUISA COMMUNICATIONS, LC - IA | 4650 | MOUNTUNION | IA |
| 2018-01-23 | 319-252-1XXX | 1000–1999 | Assigned | AIRUS, INC - IA | 423H | WATERLOO | IA |
| 2018-01-11 | 319-775-4XXX | 4000–4999 | Assigned | MCC TELEPHONY LLC | 593K | CEDAR RPDS | IA |
| 2017-12-14 | 319-888-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | WATERLOO | IA |
| 2017-12-11 | 319-245-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GRUNDY CTR | IA |
| 2017-12-11 | 319-722-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WILLIAMSBG | IA |
| 2017-12-07 | 319-834-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | IOWA CITY | IA |
| 2017-12-04 | 319-888-1XXX | 1000–1999 | Assigned | MCC TELEPHONY LLC | 593K | WATERLOO | IA |
| 2017-12-01 | 319-220-0XXX | 0000–0999 | Assigned | ONVOY, LLC - IA | 221F | CENTRAL CY | IA |
| 2017-11-09 | 319-320-9XXX | 9000–9999 | Assigned | MCC TELEPHONY LLC | 593K | CEDAR RPDS | IA |
| 2017-11-03 | 319-864-1XXX | 1000–1999 | Assigned | KALONA COOPERATIVE TELEPHONE COMPANY - IA | 957H | WASHINGTON | IA |
| 2017-11-01 | 319-249-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | CEDAR RPDS | IA |
| 2017-10-25 | 319-264-1XXX | 1000–1999 | Assigned | ONVOY, LLC - IA | 221F | OELWEIN | IA |
| 2017-10-02 | 319-222-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | CEDARFALLS | IA |
| 2017-10-02 | 319-884-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | APLINGTON | IA |
| 2017-09-29 | 319-259-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | IOWA CITY | IA |
| 2017-09-12 | 319-888-8XXX | 8000–8999 | Assigned | ONVOY, LLC - IA | 221F | WATERLOO | IA |
| 2017-09-06 | 319-720-9XXX | 9000–9999 | Assigned | AIRUS, INC - IA | 423H | CEDAR RPDS | IA |
| 2017-08-31 | 319-249-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | CEDAR RPDS | IA |
| 2017-08-29 | 319-249-3XXX | 3000–3999 | Assigned | MCC TELEPHONY LLC | 593K | CEDAR RPDS | IA |
| 2017-08-29 | 319-249-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | CEDAR RPDS | IA |
| 2017-08-29 | 319-249-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | CEDAR RPDS | IA |
| 2017-08-29 | 319-640-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | CEDAR RPDS | IA |
| 2017-08-22 | 319-249-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IA | 221F | CEDAR RPDS | IA |
| 2017-08-21 | 319-209-9XXX | 9000–9999 | Assigned | ONVOY, LLC - IA | 221F | BURLINGTON | IA |
| 2017-08-17 | 319-550-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | CEDAR RPDS | IA |
| 2017-08-16 | 319-264-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | OELWEIN | IA |
| 2017-08-14 | 319-206-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CEDAR RPDS | IA |
| 2017-08-07 | 319-264-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | OELWEIN | IA |
| 2017-08-01 | 319-645-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TIFFIN | IA |
| 2017-07-19 | 319-569-0XXX | 0000–0999 | Assigned | AIRUS, INC - IA | 423H | IOWA CITY | IA |
| 2017-07-03 | 319-242-0XXX | 0000–0999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CEDARFALLS | IA |
| 2017-06-29 | 319-259-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | IOWA CITY | 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 |
| 2017-06-05 | 319-249-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | CEDAR RPDS | IA |
| 2017-05-31 | 319-888-4XXX | 4000–4999 | Assigned | MCC TELEPHONY LLC | 593K | WATERLOO | IA |
| 2017-05-24 | 319-249-0XXX | 0000–0999 | Assigned | ONVOY, LLC - IA | 221F | CEDAR RPDS | IA |
| 2017-05-24 | 319-250-5XXX | 5000–5999 | Assigned | ONVOY, LLC - IA | 221F | FT MADISON | IA |
| 2017-05-24 | 319-519-8XXX | 8000–8999 | Assigned | ONVOY, LLC - IA | 221F | IOWA CITY | IA |
| 2017-05-24 | 319-596-2XXX | 2000–2999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WAVERLY | IA |
| 2017-05-23 | 319-205-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MT VERNON | IA |
| 2017-05-23 | 319-281-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HUDSON | IA |
| 2017-05-16 | 319-448-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WALKER | IA |
| 2017-05-16 | 319-458-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WASHINGTON | 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.