NumberResearchRecent thousands-block assignments
6 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, last 30 days — NPA 870
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 |
|---|---|---|---|---|---|---|---|
| 2015-10-15 | 870-883-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | SHERIDAN | AR |
| 2015-10-09 | 870-384-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAVE CITY | AR |
| 2015-10-08 | 870-627-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | JONESBORO | AR |
| 2015-10-02 | 870-899-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | BODCAW | AR |
| 2015-09-28 | 870-397-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | HOPE | AR |
| 2015-09-28 | 870-403-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | ARKADLPHIA | AR |
| 2015-09-28 | 870-406-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | GURDON | AR |
| 2015-09-28 | 870-451-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | NASHVILLE | AR |
| 2015-09-28 | 870-600-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | ASHDOWN | AR |
| 2015-09-24 | 870-410-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - AR | 802C | WILSON | AR |
| 2015-09-03 | 870-805-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | BATESVILLE | AR |
| 2015-09-02 | 870-581-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | FORREST CY | AR |
| 2015-09-01 | 870-916-2XXX | 2000–2999 | Assigned | YELCOT VIDEO GROUP, INC. - AR | 398H | CALICOROCK | AR |
| 2015-08-11 | 870-701-0XXX | 0000–0999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | MT HOME | AR |
| 2015-07-31 | 870-492-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - AR | 802C | MALLARD PT | AR |
| 2015-07-28 | 870-400-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | W MEMPHIS | AR |
| 2015-07-21 | 870-474-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - AR | 802C | HOPE | AR |
| 2015-07-17 | 870-714-3XXX | 3000–3999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | HELENA | AR |
| 2015-07-14 | 870-320-9XXX | 9000–9999 | Assigned | WINDSTREAM ARKANSAS, INC. | 1691 | SHERIDAN | AR |
| 2015-07-14 | 870-532-0XXX | 0000–0999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - AR | 802C | BLYTHEVL | AR |
| 2015-07-14 | 870-669-9XXX | 9000–9999 | Assigned | WINDSTREAM ARKANSAS, INC. | 1691 | GLENWOOD | AR |
| 2015-07-14 | 870-893-9XXX | 9000–9999 | Assigned | WINDSTREAM ARKANSAS, INC. | 1691 | FORDYCE | AR |
| 2015-07-14 | 870-982-9XXX | 9000–9999 | Assigned | WINDSTREAM ARKANSAS, INC. | 1691 | DE QUEEN | AR |
| 2015-07-14 | 870-985-9XXX | 9000–9999 | Assigned | WINDSTREAM ARKANSAS, INC. | 1691 | MOUNT IDA | AR |
| 2015-06-24 | 870-455-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | NASHVILLE | AR |
| 2015-06-19 | 870-382-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | DUMAS | AR |
| 2015-06-19 | 870-631-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | CORNING | AR |
| 2015-06-19 | 870-731-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | MCCRORY | AR |
| 2015-06-19 | 870-796-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | PRESCOTT | AR |
| 2015-06-16 | 870-261-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | FORREST CY | AR |
| 2015-06-12 | 870-801-9XXX | 9000–9999 | Assigned | WINDSTREAM ARKANSAS, INC. | 1691 | MARSHALL | AR |
| 2015-05-28 | 870-293-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | ARKADLPHIA | AR |
| 2015-05-27 | 870-991-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | CARTHAGE | AR |
| 2015-05-27 | 870-993-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | DALARK | AR |
| 2015-05-18 | 870-454-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - AR | 802C | CAMDEN | AR |
| 2015-05-11 | 870-727-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR | 7277 | PINE BLUFF | AR |
| 2015-05-06 | 870-581-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | FORREST CY | AR |
| 2015-04-21 | 870-712-9XXX | 9000–9999 | Assigned | WINDSTREAM ARKANSAS, INC. | 1691 | GREEN FOR | AR |
| 2015-04-21 | 870-909-9XXX | 9000–9999 | Assigned | WINDSTREAM ARKANSAS, INC. | 1691 | BERRYVILLE | AR |
| 2015-04-20 | 870-263-0XXX | 0000–0999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | GOULD | AR |
| 2015-04-20 | 870-599-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | DODGE CITY | AR |
| 2015-04-20 | 870-924-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | JUNCTIONCY | AR |
| 2015-04-15 | 870-627-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | JONESBORO | AR |
| 2015-04-14 | 870-392-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | TILLAR | AR |
| 2015-04-14 | 870-559-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MARION | AR |
| 2015-04-14 | 870-559-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MARION | AR |
| 2015-04-14 | 870-628-0XXX | 0000–0999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | STAR CITY | AR |
| 2015-04-03 | 870-397-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | HOPE | AR |
| 2015-03-20 | 870-229-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CROSSETT | AR |
| 2015-03-20 | 870-299-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MAGNOLIA | AR |
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.