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 |
|---|---|---|---|---|---|---|---|
| 2018-03-02 | 872-870-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICGOZN09 | IL |
| 2018-03-02 | 872-870-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICGOZN09 | IL |
| 2018-03-02 | 872-870-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICGOZN09 | IL |
| 2018-03-02 | 872-870-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICGOZN09 | IL |
| 2018-02-28 | 872-762-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICGOZN06 | IL |
| 2018-02-28 | 872-762-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICGOZN06 | IL |
| 2018-02-28 | 872-762-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICGOZN06 | IL |
| 2018-02-28 | 872-762-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICGOZN06 | IL |
| 2018-01-12 | 872-227-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | CHICGOZN03 | IL |
| 2018-01-05 | 872-762-2XXX | 2000–2999 | Assigned | ONVOY, LLC | 224C | CHICGOZN06 | IL |
| 2017-12-21 | 872-757-4XXX | 4000–4999 | Assigned | ONVOY, LLC | 224C | CHICGOZN07 | IL |
| 2017-12-14 | 872-315-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | CHICGOZN04 | IL |
| 2017-12-07 | 872-315-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | CHICGOZN04 | IL |
| 2017-11-30 | 872-204-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICGOZN08 | IL |
| 2017-11-30 | 872-234-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICGOZN10 | IL |
| 2017-11-30 | 872-870-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICGOZN09 | IL |
| 2017-11-29 | 872-222-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | CHICGOZN03 | IL |
| 2017-11-02 | 872-838-0XXX | 0000–0999 | Assigned | ONVOY, LLC | 224C | CHICGOZN05 | IL |
| 2017-10-13 | 872-348-6XXX | 6000–6999 | Assigned | ONVOY, LLC | 224C | CHICGOZN08 | IL |
| 2017-10-05 | 872-231-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | CHICGOZN05 | IL |
| 2017-10-05 | 872-772-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | CHICGOZN04 | IL |
| 2017-09-14 | 872-769-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | CHICGOZN06 | IL |
| 2017-08-24 | 872-266-0XXX | 0000–0999 | Assigned | ONVOY, LLC | 224C | CHICGOZN08 | IL |
| 2017-08-24 | 872-266-1XXX | 1000–1999 | Assigned | ONVOY, LLC | 224C | CHICGOZN08 | IL |
| 2017-08-24 | 872-266-2XXX | 2000–2999 | Assigned | ONVOY, LLC | 224C | CHICGOZN08 | IL |
| 2017-08-24 | 872-266-3XXX | 3000–3999 | Assigned | ONVOY, LLC | 224C | CHICGOZN08 | IL |
| 2017-08-24 | 872-266-4XXX | 4000–4999 | Assigned | ONVOY, LLC | 224C | CHICGOZN08 | IL |
| 2017-08-18 | 872-804-1XXX | 1000–1999 | Assigned | ONVOY, LLC | 224C | CHICGOZN02 | IL |
| 2017-08-18 | 872-804-2XXX | 2000–2999 | Assigned | ONVOY, LLC | 224C | CHICGOZN02 | IL |
| 2017-08-18 | 872-804-3XXX | 3000–3999 | Assigned | ONVOY, LLC | 224C | CHICGOZN02 | IL |
| 2017-08-18 | 872-804-4XXX | 4000–4999 | Assigned | ONVOY, LLC | 224C | CHICGOZN02 | IL |
| 2017-08-18 | 872-804-5XXX | 5000–5999 | Assigned | ONVOY, LLC | 224C | CHICGOZN02 | IL |
| 2017-07-19 | 872-276-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | CHICGOZN06 | IL |
| 2017-06-14 | 872-757-3XXX | 3000–3999 | Assigned | ONVOY, LLC | 224C | CHICGOZN07 | IL |
| 2017-06-09 | 872-870-0XXX | 0000–0999 | Assigned | ONVOY, LLC | 224C | CHICGOZN09 | IL |
| 2017-06-06 | 872-252-7XXX | 7000–7999 | Assigned | ONVOY, LLC | 224C | CHICGOZN08 | IL |
| 2017-05-31 | 872-276-2XXX | 2000–2999 | Assigned | ONVOY, LLC | 224C | CHICGOZN06 | IL |
| 2017-05-31 | 872-304-5XXX | 5000–5999 | Assigned | ONVOY, LLC | 224C | CHICGOZN03 | IL |
| 2017-05-31 | 872-310-1XXX | 1000–1999 | Assigned | ONVOY, LLC | 224C | CHICGOZN02 | IL |
| 2017-05-31 | 872-757-2XXX | 2000–2999 | Assigned | ONVOY, LLC | 224C | CHICGOZN07 | IL |
| 2017-05-02 | 872-365-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | CHICGOZN02 | IL |
| 2017-04-12 | 872-903-7XXX | 7000–7999 | Assigned | TELNYX LLC | 073H | CHICGOZN09 | IL |
| 2017-04-11 | 872-231-5XXX | 5000–5999 | Assigned | TELNYX LLC | 073H | CHICGOZN05 | IL |
| 2017-03-14 | 872-315-4XXX | 4000–4999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | CHICGOZN04 | IL |
| 2017-03-14 | 872-769-2XXX | 2000–2999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | CHICGOZN06 | IL |
| 2017-03-08 | 872-762-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | CHICGOZN06 | IL |
| 2017-03-07 | 872-234-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | CHICGOZN10 | IL |
| 2017-03-07 | 872-254-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | CHICGOZN08 | IL |
| 2017-03-07 | 872-757-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | CHICGOZN07 | IL |
| 2017-03-07 | 872-772-6XXX | 6000–6999 | Assigned | TELNYX LLC | 073H | CHICGOZN04 | 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.