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 615
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2014-02-25 | 615-805-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | PORTLAND | TN |
| 2014-02-20 | 615-241-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | NSPRINGHIL | TN |
| 2014-02-20 | 615-270-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | EASTSANGO | TN |
| 2014-02-20 | 615-398-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | PLEASANTVW | TN |
| 2014-02-20 | 615-436-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SPENCERMIL | TN |
| 2014-02-20 | 615-441-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | DICKSON | TN |
| 2014-02-20 | 615-455-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SCUNNINGHA | TN |
| 2014-02-20 | 615-544-8XXX | 8000–8999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | FAIRVIEW | TN |
| 2014-02-20 | 615-576-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | VANLEER | TN |
| 2014-02-20 | 615-592-8XXX | 8000–8999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | TRIUNE | TN |
| 2014-02-20 | 615-685-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SOFREDONIA | TN |
| 2014-02-20 | 615-797-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WHITEBLUFF | TN |
| 2014-02-20 | 615-952-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | KINGSTNSPG | TN |
| 2014-02-19 | 615-203-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MURFREESBO | TN |
| 2014-02-19 | 615-267-4XXX | 4000–4999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SMYRNA | TN |
| 2014-02-19 | 615-274-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | EAGLEVILLE | TN |
| 2014-02-19 | 615-334-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WHITEHOUSE | TN |
| 2014-02-19 | 615-434-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ASHLAND CY | TN |
| 2014-02-19 | 615-448-3XXX | 3000–3999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | GOODLETSVL | TN |
| 2014-02-19 | 615-450-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HARTSVILLE | TN |
| 2014-02-19 | 615-486-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CARTHAGE | TN |
| 2014-02-19 | 615-502-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | GALLATIN | TN |
| 2014-02-19 | 615-608-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | OLDHICKORY | TN |
| 2014-02-19 | 615-654-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CRSPLORLND | TN |
| 2014-02-19 | 615-667-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SPRINGFLD | TN |
| 2014-02-19 | 615-671-8XXX | 8000–8999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CHARLOTTE | TN |
| 2014-02-19 | 615-682-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ADMSCDARHL | TN |
| 2014-02-19 | 615-697-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WATERTOWN | TN |
| 2014-02-19 | 615-757-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HENDERSNVL | TN |
| 2014-02-19 | 615-784-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | LEBANON | TN |
| 2014-02-19 | 615-863-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | GREENBRIER | TN |
| 2014-02-19 | 615-905-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | FRANKLIN | TN |
| 2013-09-27 | 615-490-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | NASHVILLE | 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.