NumberResearchRecent thousands-block assignments
11 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 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 |
|---|---|---|---|---|---|---|---|
| 2006-08-03 | 573-837-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | CAPEGIRARD | MO |
| 2006-07-28 | 573-712-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | POPLAR BLF | MO |
| 2006-07-28 | 573-714-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | POPLAR BLF | MO |
| 2006-07-28 | 573-727-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | POPLAR BLF | MO |
| 2006-07-28 | 573-803-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAPEGIRARD | MO |
| 2006-07-28 | 573-803-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAPEGIRARD | MO |
| 2006-07-28 | 573-803-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAPEGIRARD | MO |
| 2006-07-24 | 573-855-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WAYNESVL | MO |
| 2006-07-24 | 573-855-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WAYNESVL | MO |
| 2006-07-24 | 573-855-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WAYNESVL | MO |
| 2006-07-24 | 573-855-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WAYNESVL | MO |
| 2006-07-17 | 573-239-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | COLUMBIA | MO |
| 2006-07-17 | 573-239-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | COLUMBIA | MO |
| 2006-07-12 | 573-355-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | COLUMBIA | MO |
| 2006-07-12 | 573-355-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | COLUMBIA | MO |
| 2006-07-12 | 573-355-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | COLUMBIA | MO |
| 2006-07-12 | 573-355-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | COLUMBIA | MO |
| 2006-07-12 | 573-355-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | COLUMBIA | MO |
| 2006-07-11 | 573-253-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MEXICO | MO |
| 2006-07-11 | 573-529-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | COLUMBIA | MO |
| 2006-07-10 | 573-677-0XXX | 0000–0999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | CUBA | MO |
| 2006-07-06 | 573-668-0XXX | 0000–0999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | BOURBON | MO |
| 2006-06-22 | 573-210-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | POTOSI | MO |
| 2006-06-22 | 573-552-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LKOZKOSBCH | MO |
| 2006-06-22 | 573-552-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LKOZKOSBCH | MO |
| 2006-06-22 | 573-826-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | FULTON | MO |
| 2006-06-13 | 573-418-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | JEFFERSNCY | MO |
| 2006-06-13 | 573-418-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | JEFFERSNCY | MO |
| 2006-06-13 | 573-418-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | JEFFERSNCY | MO |
| 2006-06-06 | 573-485-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | EOLIA | MO |
| 2006-06-02 | 573-544-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FULTON | MO |
| 2006-06-02 | 573-544-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FULTON | MO |
| 2006-05-23 | 573-889-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LICKING | MO |
| 2006-05-16 | 573-239-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | COLUMBIA | MO |
| 2006-05-16 | 573-503-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | MIDDLETOWN | MO |
| 2006-05-16 | 573-662-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | IBERIA | MO |
| 2006-05-16 | 573-710-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | MARTINSBG | MO |
| 2006-05-16 | 573-844-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | CROCKER | MO |
| 2006-05-16 | 573-917-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | DIXON | MO |
| 2006-05-11 | 573-298-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | JEFFERSNCY | MO |
| 2006-05-10 | 573-575-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CARUTHRSVL | MO |
| 2006-05-03 | 573-828-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | VANDALIA | MO |
| 2006-04-27 | 573-559-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | KENNETT | MO |
| 2006-04-21 | 573-384-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | SILEX | MO |
| 2006-04-14 | 573-234-7XXX | 7000–7999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9784 | COLUMBIA | MO |
| 2006-04-14 | 573-234-8XXX | 8000–8999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9784 | COLUMBIA | MO |
| 2006-04-03 | 573-880-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | STEGNVIEVE | MO |
| 2006-03-30 | 573-878-0XXX | 0000–0999 | Assigned | SOUTHWESTERN BELL | 9533 | BEAUFORT | MO |
| 2006-03-09 | 573-535-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | STEGNVIEVE | MO |
| 2006-03-07 | 573-855-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WAYNESVL | MO |
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.