NumberResearchRecent thousands-block assignments
0 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, all time — NPA 440
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 |
|---|---|---|---|---|---|---|---|
| 2015-08-03 | 440-737-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | TRUMBULL | OH |
| 2015-08-03 | 440-837-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | DORSET | OH |
| 2015-07-28 | 440-279-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CHARDON | OH |
| 2015-07-28 | 440-298-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | THOMPSON | OH |
| 2015-07-28 | 440-307-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MADISON | OH |
| 2015-07-28 | 440-310-8XXX | 8000–8999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | COLUMBISTA | OH |
| 2015-07-28 | 440-426-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MIDDLEFLD | OH |
| 2015-07-28 | 440-468-4XXX | 4000–4999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BAINBRIDGE | OH |
| 2015-07-28 | 440-491-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | GENEVA | OH |
| 2015-07-28 | 440-557-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | RUSSELL | OH |
| 2015-07-28 | 440-560-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ROCK CREEK | OH |
| 2015-07-28 | 440-577-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | PIERPONT | OH |
| 2015-07-28 | 440-636-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HUNTSBURG | OH |
| 2015-07-28 | 440-693-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MESOPOTMIA | OH |
| 2015-07-28 | 440-968-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MONTVILLE | OH |
| 2015-05-13 | 440-276-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | KIRTLAND | OH |
| 2015-03-30 | 440-650-3XXX | 3000–3999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ASHTABULA | OH |
| 2015-03-30 | 440-657-1XXX | 1000–1999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ELYRIA | OH |
| 2014-06-16 | 440-273-2XXX | 2000–2999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BURTON | OH |
| 2014-06-16 | 440-316-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | NORTHEATON | OH |
| 2014-06-16 | 440-427-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | OLMSTEDFLS | OH |
| 2014-06-16 | 440-533-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | GATESMILLS | OH |
| 2014-06-16 | 440-707-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | OBERLIN | OH |
| 2014-06-16 | 440-791-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | GRAFTON | OH |
| 2014-06-16 | 440-828-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WELLINGTON | OH |
| 2014-03-12 | 440-732-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | STRONGSVL | OH |
| 2014-03-04 | 440-215-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WAKEMAN | OH |
| 2014-03-04 | 440-230-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | NOROYALTON | OH |
| 2014-03-04 | 440-399-8XXX | 8000–8999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BEDFORD | OH |
| 2014-03-04 | 440-534-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MENTOR | OH |
| 2014-03-04 | 440-569-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WICKLIFFE | OH |
| 2014-03-04 | 440-688-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CHESTERLD | OH |
| 2013-11-22 | 440-695-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | AVON | OH |
| 2013-11-22 | 440-961-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | AVON LAKE | OH |
| 2013-11-06 | 440-340-2XXX | 2000–2999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | VICTORY | OH |
| 2013-11-06 | 440-421-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HILLCREST | OH |
| 2013-11-06 | 440-469-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BEREA | OH |
| 2013-11-06 | 440-630-8XXX | 8000–8999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BRECKSVL | OH |
| 2013-11-06 | 440-719-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CHAGRINFLS | OH |
| 2013-11-06 | 440-721-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | PAINESVL | OH |
| 2013-11-06 | 440-742-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WILLOUGHBY | OH |
| 2013-10-23 | 440-370-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | AMHERST | OH |
| 2013-10-23 | 440-434-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | LORAIN | OH |
| 2013-10-23 | 440-963-3XXX | 3000–3999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | VERMILION | OH |
| 2013-08-14 | 440-455-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | TRINITY | OH |
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.