NumberResearchRecent thousands-block assignments
14 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 413
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 |
|---|---|---|---|---|---|---|---|
| 2015-03-16 | 413-752-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | BRIMFIELD | MA |
| 2015-03-16 | 413-768-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | GREENFIELD | MA |
| 2015-03-16 | 413-779-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | EASTHAMPTN | MA |
| 2015-03-16 | 413-853-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ASHFIELD | MA |
| 2015-03-16 | 413-865-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | LEE | MA |
| 2015-03-13 | 413-378-8XXX | 8000–8999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | CHICOPEE | MA |
| 2015-03-13 | 413-409-0XXX | 0000–0999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | HOLYOKE | MA |
| 2015-03-12 | 413-824-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GREENFIELD | MA |
| 2015-03-06 | 413-350-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | SO DEERFLD | MA |
| 2015-01-23 | 413-417-5XXX | 5000–5999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SPRINGFLD | MA |
| 2015-01-23 | 413-417-9XXX | 9000–9999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SPRINGFLD | MA |
| 2015-01-22 | 413-239-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | NORTHFIELD | MA |
| 2015-01-12 | 413-270-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | NORTHAMPTN | MA |
| 2014-12-30 | 413-547-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | LUDLOW | MA |
| 2014-12-16 | 413-349-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | HATFIELD | MA |
| 2014-12-15 | 413-402-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | SHEFFIELD | MA |
| 2014-12-11 | 413-207-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MA | 892D | HUNTINGTON | MA |
| 2014-12-11 | 413-570-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MA | 892D | NORTHAMPTN | MA |
| 2014-12-11 | 413-570-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | NORTHAMPTN | MA |
| 2014-12-11 | 413-667-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MA | 892D | HUNTINGTON | MA |
| 2014-12-11 | 413-875-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MA | 892D | WESTFIELD | MA |
| 2014-12-11 | 413-875-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | WESTFIELD | MA |
| 2014-12-01 | 413-324-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | PALMER | MA |
| 2014-11-21 | 413-523-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | SPRINGFLD | MA |
| 2014-11-21 | 413-821-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | SPRINGFLD | MA |
| 2014-11-21 | 413-930-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | SPRINGFLD | MA |
| 2014-11-21 | 413-930-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MA | 892D | SPRINGFLD | MA |
| 2014-11-21 | 413-930-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MA | 892D | SPRINGFLD | MA |
| 2014-11-21 | 413-930-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | SPRINGFLD | MA |
| 2014-11-21 | 413-930-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MA | 892D | SPRINGFLD | MA |
| 2014-11-14 | 413-474-0XXX | 0000–0999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | CHICOPEE | MA |
| 2014-11-14 | 413-474-1XXX | 1000–1999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | CHICOPEE | MA |
| 2014-11-14 | 413-725-8XXX | 8000–8999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | WARE | MA |
| 2014-11-12 | 413-252-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA | 7103 | BELCHERTN | MA |
| 2014-11-06 | 413-378-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CHICOPEE | MA |
| 2014-10-15 | 413-409-9XXX | 9000–9999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | HOLYOKE | MA |
| 2014-10-14 | 413-377-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA | 7103 | CHICOPEE | MA |
| 2014-10-09 | 413-372-0XXX | 0000–0999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SPRINGFLD | MA |
| 2014-10-09 | 413-391-8XXX | 8000–8999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SPRINGFLD | MA |
| 2014-10-09 | 413-425-3XXX | 3000–3999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | HOLYOKE | MA |
| 2014-10-09 | 413-930-0XXX | 0000–0999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SPRINGFLD | MA |
| 2014-10-03 | 413-899-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA | 7103 | SO DEERFLD | MA |
| 2014-10-02 | 413-425-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MA | 892D | HOLYOKE | MA |
| 2014-10-02 | 413-540-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | HOLYOKE | MA |
| 2014-09-30 | 413-406-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | AMHERST | MA |
| 2014-09-30 | 413-406-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | AMHERST | MA |
| 2014-09-30 | 413-406-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | AMHERST | MA |
| 2014-09-30 | 413-406-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | AMHERST | MA |
| 2014-09-22 | 413-930-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MA | 892D | SPRINGFLD | MA |
| 2014-09-22 | 413-930-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MA | 892D | SPRINGFLD | MA |
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.