NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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 803
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 |
|---|---|---|---|---|---|---|---|
| 2015-09-14 | 803-510-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | NO AUGUSTA | SC |
| 2015-09-11 | 803-302-2XXX | 2000–2999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BEECH IS | SC |
| 2015-09-11 | 803-594-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BATH | SC |
| 2015-09-11 | 803-615-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | EDGEFIELD | SC |
| 2015-09-11 | 803-618-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | JOHNSTON | SC |
| 2015-09-11 | 803-663-2XXX | 2000–2999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | GRANITEVL | SC |
| 2015-09-11 | 803-845-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | AIKEN | SC |
| 2015-04-22 | 803-368-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | OLAR | SC |
| 2015-04-22 | 803-456-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | STMATTHEWS | SC |
| 2015-04-22 | 803-486-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BISHOPVL | SC |
| 2015-04-22 | 803-717-4XXX | 4000–4999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SHAWAFBHTS | SC |
| 2015-04-22 | 803-801-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WINNSBORO | SC |
| 2015-04-22 | 803-824-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | EHRHARDT | SC |
| 2015-04-22 | 803-825-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MANNING | SC |
| 2015-04-22 | 803-829-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BOWMAN | SC |
| 2015-04-22 | 803-850-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | FAIRFAX | SC |
| 2015-04-22 | 803-857-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SANTEE | SC |
| 2015-04-22 | 803-897-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ELLOREE | SC |
| 2015-04-14 | 803-490-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | LEXINGTON | SC |
| 2015-04-14 | 803-757-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SUMTER | SC |
| 2015-03-05 | 803-752-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | LAKE WYLIE | SC |
| 2014-08-20 | 803-492-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | EUTAWVILLE | SC |
| 2014-08-18 | 803-674-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BATESBURG | SC |
| 2014-08-12 | 803-219-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BLACKVILLE | SC |
| 2014-08-12 | 803-274-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BRANCHVL | SC |
| 2014-08-12 | 803-500-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | PROSPERITY | SC |
| 2014-08-12 | 803-570-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ORANGEBURG | SC |
| 2014-08-12 | 803-575-4XXX | 4000–4999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CHPNLTLMTS | SC |
| 2014-08-12 | 803-597-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | NEWBERRY | SC |
| 2014-08-12 | 803-653-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SRNGFLSLLY | SC |
| 2014-08-12 | 803-672-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | DENMARK | SC |
| 2014-08-12 | 803-686-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ALLENDALE | SC |
| 2014-08-12 | 803-816-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CHPNLTLMTN | SC |
| 2014-08-12 | 803-875-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | EASTOVER | SC |
| 2014-08-12 | 803-893-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ESTILL | SC |
| 2014-08-12 | 803-900-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CAMDEN | SC |
| 2014-08-12 | 803-913-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HAMPTON | SC |
| 2014-08-12 | 803-956-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BAMBERG | SC |
| 2014-07-01 | 803-681-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SHARON | SC |
| 2014-06-19 | 803-621-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BARNWELL | SC |
| 2014-06-10 | 803-339-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MILL CREEK | SC |
| 2014-06-10 | 803-610-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CLOVER | SC |
| 2014-06-10 | 803-620-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | YORK | SC |
| 2014-02-24 | 803-638-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | COLUMBIA | SC |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.