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 931
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-10-16 | 931-910-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | PETERSBURG | TN |
| 2023-01-13 | 931-373-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | RICKMAN | TN |
| 2022-08-11 | 931-412-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WAVERLY | TN |
| 2022-08-10 | 931-370-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | NEWJHNSNVL | TN |
| 2021-11-18 | 931-344-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | PLEASANTHL | TN |
| 2021-02-26 | 931-904-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | MCEWEN | TN |
| 2021-01-04 | 931-600-8XXX | 8000–8999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | COLLINWOOD | TN |
| 2019-11-08 | 931-213-8XXX | 8000–8999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | CLIFTON | TN |
| 2019-11-08 | 931-253-8XXX | 8000–8999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WAYNESBORO | TN |
| 2018-11-08 | 931-410-8XXX | 8000–8999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | PALMYRA | TN |
| 2018-06-06 | 931-275-0XXX | 0000–0999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | BELFAST | TN |
| 2018-06-01 | 931-351-0XXX | 0000–0999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | ESTILL SPG | TN |
| 2018-05-15 | 931-773-3XXX | 3000–3999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | SHELBYVL | TN |
| 2018-01-19 | 931-414-4XXX | 4000–4999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | MCMINNVL | TN |
| 2017-12-06 | 931-341-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | COOKEVL SO | TN |
| 2017-12-01 | 931-255-4XXX | 4000–4999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | BAXTER | TN |
| 2017-05-23 | 931-505-8XXX | 8000–8999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | COLUMBIA | TN |
| 2017-02-28 | 931-828-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | ETHRIDGE | TN |
| 2017-02-24 | 931-843-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | LORETTO | TN |
| 2017-02-24 | 931-846-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | ST JOSEPH | TN |
| 2017-02-24 | 931-851-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | LEOMA | TN |
| 2016-05-17 | 931-701-6XXX | 6000–6999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | LYLES | TN |
| 2016-05-17 | 931-716-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | CENTERVL | TN |
| 2016-04-21 | 931-651-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | COOKEVILLE | TN |
| 2015-12-22 | 931-333-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | TRACY CITY | TN |
| 2015-12-15 | 931-254-4XXX | 4000–4999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | SPENCER | TN |
| 2015-10-07 | 931-234-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | OLD ZION | TN |
| 2015-10-07 | 931-318-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | VIOLA | TN |
| 2015-10-07 | 931-331-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | ROCKISLAND | TN |
| 2015-10-07 | 931-352-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | DOYLE | TN |
| 2015-10-07 | 931-402-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | DIBRELL | TN |
| 2015-10-07 | 931-406-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | BONDECROFT | TN |
| 2015-10-07 | 931-407-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | BEERSHEBA | TN |
| 2015-10-01 | 931-301-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | LAAGER | TN |
| 2015-10-01 | 931-317-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | MONTEAGLE | TN |
| 2015-09-30 | 931-315-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | HILLSBORO | TN |
| 2015-09-25 | 931-256-8XXX | 8000–8999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | SPARTA | TN |
| 2015-09-25 | 931-304-8XXX | 8000–8999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | MCMINNVL | TN |
| 2015-09-14 | 931-939-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | CENTERTOWN | TN |
| 2015-06-24 | 931-401-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | CLARKSVL | TN |
| 2015-04-09 | 931-451-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | SPRINGHILL | TN |
| 2014-08-15 | 931-954-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | MANCHESTER | TN |
| 2014-03-10 | 931-553-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | CLARKSVL | TN |
| 2013-09-12 | 931-792-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FLINTVILLE | TN |
| 2013-08-23 | 931-378-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | CLARKSVL | TN |
| 2013-08-23 | 931-422-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | LEWISBURG | TN |
| 2013-05-14 | 931-202-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | CROSSVILLE | TN |
| 2013-05-14 | 931-548-8XXX | 8000–8999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | COLUMBIA | TN |
| 2013-04-03 | 931-651-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | COOKEVILLE | TN |
| 2012-05-30 | 931-492-4XXX | 4000–4999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | SHELBYVL | TN |
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.