NumberResearchRecent thousands-block assignments
9 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 872
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 |
|---|---|---|---|---|---|---|---|
| 2015-06-26 | 872-818-8XXX | 8000–8999 | Assigned | ONVOY, LLC | 224C | CHICGOZN07 | IL |
| 2015-06-26 | 872-818-9XXX | 9000–9999 | Assigned | ONVOY, LLC | 224C | CHICGOZN07 | IL |
| 2015-06-26 | 872-901-3XXX | 3000–3999 | Assigned | ONVOY, LLC | 224C | CHICGOZN07 | IL |
| 2015-06-26 | 872-901-5XXX | 5000–5999 | Assigned | ONVOY, LLC | 224C | CHICGOZN07 | IL |
| 2015-06-26 | 872-901-6XXX | 6000–6999 | Assigned | ONVOY, LLC | 224C | CHICGOZN07 | IL |
| 2015-06-23 | 872-810-4XXX | 4000–4999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | CHICGOZN02 | IL |
| 2015-06-17 | 872-810-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICGOZN02 | IL |
| 2015-06-17 | 872-810-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICGOZN02 | IL |
| 2015-06-17 | 872-810-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICGOZN02 | IL |
| 2015-06-17 | 872-810-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICGOZN02 | IL |
| 2015-06-09 | 872-242-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICGOZN04 | IL |
| 2015-06-09 | 872-242-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICGOZN04 | IL |
| 2015-06-09 | 872-242-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICGOZN04 | IL |
| 2015-06-09 | 872-302-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICGOZN02 | IL |
| 2015-06-09 | 872-703-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICGOZN10 | IL |
| 2015-06-09 | 872-703-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICGOZN10 | IL |
| 2015-06-09 | 872-703-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICGOZN10 | IL |
| 2015-06-09 | 872-703-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICGOZN10 | IL |
| 2015-06-09 | 872-903-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICGOZN09 | IL |
| 2015-06-09 | 872-903-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICGOZN09 | IL |
| 2015-06-09 | 872-903-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICGOZN09 | IL |
| 2015-06-09 | 872-903-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICGOZN09 | IL |
| 2015-06-02 | 872-281-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | CHICGOZN06 | IL |
| 2015-06-01 | 872-302-5XXX | 5000–5999 | Assigned | ONVOY, LLC | 224C | CHICGOZN02 | IL |
| 2015-06-01 | 872-302-6XXX | 6000–6999 | Assigned | ONVOY, LLC | 224C | CHICGOZN02 | IL |
| 2015-06-01 | 872-713-6XXX | 6000–6999 | Assigned | ONVOY, LLC | 224C | CHICGOZN04 | IL |
| 2015-06-01 | 872-713-7XXX | 7000–7999 | Assigned | ONVOY, LLC | 224C | CHICGOZN04 | IL |
| 2015-05-29 | 872-901-7XXX | 7000–7999 | Assigned | ONVOY, LLC | 224C | CHICGOZN07 | IL |
| 2015-05-29 | 872-901-8XXX | 8000–8999 | Assigned | ONVOY, LLC | 224C | CHICGOZN07 | IL |
| 2015-05-28 | 872-201-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICGOZN07 | IL |
| 2015-05-27 | 872-308-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN06 | IL |
| 2015-05-27 | 872-308-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN06 | IL |
| 2015-05-27 | 872-308-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN06 | IL |
| 2015-05-27 | 872-308-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN06 | IL |
| 2015-05-27 | 872-308-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN06 | IL |
| 2015-05-27 | 872-308-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN06 | IL |
| 2015-05-27 | 872-308-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN06 | IL |
| 2015-05-27 | 872-308-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN06 | IL |
| 2015-05-27 | 872-308-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN06 | IL |
| 2015-05-21 | 872-818-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CHICGOZN07 | IL |
| 2015-05-20 | 872-303-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN07 | IL |
| 2015-05-20 | 872-303-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN07 | IL |
| 2015-05-20 | 872-303-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN07 | IL |
| 2015-05-20 | 872-731-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN07 | IL |
| 2015-05-20 | 872-818-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN07 | IL |
| 2015-05-20 | 872-818-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN07 | IL |
| 2015-05-20 | 872-818-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN07 | IL |
| 2015-05-20 | 872-818-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN07 | IL |
| 2015-05-20 | 872-818-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN07 | IL |
| 2015-05-20 | 872-818-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN07 | IL |
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.