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 |
|---|---|---|---|---|---|---|---|
| 2018-02-07 | 413-270-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | NORTHAMPTN | MA |
| 2018-02-07 | 413-307-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MA | 892D | ADAMS | MA |
| 2018-02-06 | 413-319-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MA | 892D | HOLYOKE | MA |
| 2018-02-02 | 413-213-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | BELCHERTN | MA |
| 2018-02-01 | 413-266-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MA | 892D | SPRINGFLD | MA |
| 2018-01-03 | 413-768-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | GREENFIELD | MA |
| 2017-12-28 | 413-500-2XXX | 2000–2999 | Assigned | TC SYSTEMS, INC. | 7135 | MONROE BDG | MA |
| 2017-12-22 | 413-758-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WARE | MA |
| 2017-12-14 | 413-496-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | PITTSFIELD | MA |
| 2017-12-12 | 413-369-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MA | 892D | CONWAY | MA |
| 2017-12-12 | 413-420-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MA | 892D | HOLYOKE | MA |
| 2017-12-12 | 413-667-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | HUNTINGTON | MA |
| 2017-12-12 | 413-846-2XXX | 2000–2999 | Assigned | TC SYSTEMS, INC. | 7135 | SPRINGFLD | MA |
| 2017-11-29 | 413-269-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | OTIS | MA |
| 2017-11-24 | 413-750-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | SPRINGFLD | MA |
| 2017-11-15 | 413-266-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | SPRINGFLD | MA |
| 2017-11-09 | 413-400-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MA | 892D | MONTAGUE | MA |
| 2017-10-11 | 413-758-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MA | 892D | WARE | MA |
| 2017-10-06 | 413-270-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | NORTHAMPTN | MA |
| 2017-09-28 | 413-310-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | SPRINGFLD | MA |
| 2017-09-25 | 413-291-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SPRINGFLD | MA |
| 2017-09-12 | 413-278-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | SPRINGFLD | MA |
| 2017-08-30 | 413-409-4XXX | 4000–4999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | HOLYOKE | MA |
| 2017-08-21 | 413-278-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MA | 892D | SPRINGFLD | MA |
| 2017-08-21 | 413-278-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MA | 892D | SPRINGFLD | MA |
| 2017-08-21 | 413-278-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | SPRINGFLD | MA |
| 2017-08-21 | 413-278-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MA | 892D | SPRINGFLD | MA |
| 2017-08-14 | 413-507-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | SPRINGFLD | MA |
| 2017-08-11 | 413-517-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | NORTHAMPTN | MA |
| 2017-08-04 | 413-800-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | AMHERST | MA |
| 2017-07-13 | 413-412-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NORTHADAMS | MA |
| 2017-07-10 | 413-507-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | SPRINGFLD | MA |
| 2017-07-10 | 413-507-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | SPRINGFLD | MA |
| 2017-06-14 | 413-278-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | SPRINGFLD | MA |
| 2017-06-12 | 413-409-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | HOLYOKE | MA |
| 2017-06-08 | 413-409-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | HOLYOKE | MA |
| 2017-06-07 | 413-795-0XXX | 0000–0999 | Assigned | PAETEC ITEL, LLC | 829J | SPRINGFLD | MA |
| 2017-06-07 | 413-795-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | SPRINGFLD | MA |
| 2017-06-07 | 413-795-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | SPRINGFLD | MA |
| 2017-06-07 | 413-795-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | SPRINGFLD | MA |
| 2017-06-07 | 413-795-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | SPRINGFLD | MA |
| 2017-06-07 | 413-795-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | SPRINGFLD | MA |
| 2017-06-07 | 413-795-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | SPRINGFLD | MA |
| 2017-06-07 | 413-795-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | SPRINGFLD | MA |
| 2017-06-07 | 413-795-8XXX | 8000–8999 | Assigned | PAETEC ITEL, LLC | 829J | SPRINGFLD | MA |
| 2017-06-07 | 413-795-9XXX | 9000–9999 | Assigned | PAETEC ITEL, LLC | 829J | SPRINGFLD | MA |
| 2017-05-22 | 413-800-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | AMHERST | MA |
| 2017-05-08 | 413-287-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MA | 892D | RUSSELL | MA |
| 2017-05-02 | 413-564-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | WESTFIELD | MA |
| 2017-04-27 | 413-278-0XXX | 0000–0999 | 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.