NumberResearchRecent thousands-block assignments
11 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 573
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 |
|---|---|---|---|---|---|---|---|
| 2014-07-18 | 573-475-7XXX | 7000–7999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | SIKESTON | MO |
| 2014-07-08 | 573-212-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | ORAN | MO |
| 2014-07-08 | 573-217-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAMPBELL | MO |
| 2014-07-07 | 573-525-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | CAMDENTON | MO |
| 2014-06-27 | 573-229-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | META | MO |
| 2014-06-27 | 573-405-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | VIENNA | MO |
| 2014-06-27 | 573-553-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WESTPHALIA | MO |
| 2014-06-27 | 573-728-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | ARGYLE | MO |
| 2014-06-27 | 573-744-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | FREEBURG | MO |
| 2014-06-23 | 573-328-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | QULIN | MO |
| 2014-06-23 | 573-398-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | SCOTT CITY | MO |
| 2014-06-23 | 573-401-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ST MARYS | MO |
| 2014-06-23 | 573-403-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | WYATT | MO |
| 2014-06-23 | 573-599-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | TUSCUMBIA | MO |
| 2014-06-20 | 573-389-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | OAK RIDGE | MO |
| 2014-06-20 | 573-390-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | OLDAPPLETN | MO |
| 2014-06-20 | 573-448-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | GIDEON | MO |
| 2014-06-20 | 573-562-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | LEADWOOD | MO |
| 2014-06-20 | 573-667-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | MOREHOUSE | MO |
| 2014-06-20 | 573-688-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | LILBOURN | MO |
| 2014-06-20 | 573-717-4XXX | 4000–4999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | KENNETT | MO |
| 2014-06-20 | 573-737-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | HORNERSVL | MO |
| 2014-06-20 | 573-755-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | JACKSON | MO |
| 2014-06-19 | 573-360-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | E PRAIRIE | MO |
| 2014-06-19 | 573-362-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | FISK | MO |
| 2014-06-19 | 573-665-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | PAYNESVL | MO |
| 2014-06-17 | 573-313-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BENTON | MO |
| 2014-06-17 | 573-350-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | DELTA | MO |
| 2014-06-17 | 573-534-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BONNETERRE | MO |
| 2014-06-17 | 573-654-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | CARDWELL | MO |
| 2014-06-17 | 573-733-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BELL CITY | MO |
| 2014-06-17 | 573-734-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BISMARCK | MO |
| 2014-06-17 | 573-824-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | ALTEBGFRHN | MO |
| 2014-06-13 | 573-292-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2014-06-13 | 573-292-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2014-06-13 | 573-305-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2014-06-13 | 573-305-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2014-06-11 | 573-895-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | BLOOMFIELD | MO |
| 2014-06-05 | 573-200-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | CAPEGIRARD | MO |
| 2014-06-05 | 573-290-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | CAPEGIRARD | MO |
| 2014-05-15 | 573-310-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | FULTON | MO |
| 2014-05-15 | 573-818-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | COLUMBIA | MO |
| 2014-05-07 | 573-502-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | GRAVOIS ML | MO |
| 2014-05-06 | 573-505-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | GRAVOIS ML | MO |
| 2014-05-05 | 573-327-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | FLAT RIVER | MO |
| 2014-04-29 | 573-203-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | SENATH | MO |
| 2014-04-29 | 573-227-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | MARSTON | MO |
| 2014-04-29 | 573-315-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | FLAT RIVER | MO |
| 2014-04-29 | 573-319-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | MACKSCREEK | MO |
| 2014-04-29 | 573-342-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | RICHWOODS | MO |
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.