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 |
|---|---|---|---|---|---|---|---|
| 2008-05-06 | 413-623-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | BECKET | MA |
| 2008-05-05 | 413-663-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | NORTHADAMS | MA |
| 2008-05-05 | 413-770-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | PITTSFIELD | MA |
| 2008-05-05 | 413-884-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | WILLIAMSTN | MA |
| 2008-04-28 | 413-338-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | WARREN | MA |
| 2008-04-28 | 413-485-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | WESTFIELD | MA |
| 2008-03-26 | 413-272-5XXX | 5000–5999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SPRINGFLD | MA |
| 2008-03-25 | 413-366-5XXX | 5000–5999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | WILBRAHAM | MA |
| 2008-03-17 | 413-363-4XXX | 4000–4999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SPRINGFLD | MA |
| 2008-03-17 | 413-363-5XXX | 5000–5999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SPRINGFLD | MA |
| 2008-03-14 | 413-331-3XXX | 3000–3999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | CHICOPEE | MA |
| 2008-03-07 | 413-376-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | GREENFIELD | MA |
| 2008-03-04 | 413-437-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | HOLYOKE | MA |
| 2008-02-12 | 413-645-2XXX | 2000–2999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | GREATBNGTN | MA |
| 2008-02-07 | 413-325-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | GREENFIELD | MA |
| 2008-02-06 | 413-386-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | SPRINGFLD | MA |
| 2008-02-06 | 413-386-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | SPRINGFLD | MA |
| 2008-02-06 | 413-835-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | AMHERST | MA |
| 2008-02-05 | 413-301-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | SPRINGFLD | MA |
| 2008-02-05 | 413-301-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | SPRINGFLD | MA |
| 2008-02-05 | 413-497-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | GILBERTVL | MA |
| 2008-02-04 | 413-248-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | SHEFFIELD | MA |
| 2008-02-04 | 413-464-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PITTSFIELD | MA |
| 2008-02-04 | 413-464-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PITTSFIELD | MA |
| 2008-01-31 | 413-429-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | GREATBNGTN | MA |
| 2008-01-31 | 413-429-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | GREATBNGTN | MA |
| 2008-01-29 | 413-548-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | AMHRSTFKLN | MA |
| 2008-01-29 | 413-559-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | AMHRSTFKLN | MA |
| 2008-01-28 | 413-544-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | PALMER | MA |
| 2008-01-21 | 413-248-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | SHEFFIELD | MA |
| 2008-01-17 | 413-591-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | GREATBNGTN | MA |
| 2008-01-16 | 413-497-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | GILBERTVL | MA |
| 2008-01-15 | 413-325-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | GREENFIELD | MA |
| 2008-01-09 | 413-275-7XXX | 7000–7999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | HOLYOKE | MA |
| 2008-01-08 | 413-459-7XXX | 7000–7999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | CHICOPEE | MA |
| 2008-01-07 | 413-328-9XXX | 9000–9999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SPRINGFLD | MA |
| 2008-01-07 | 413-363-3XXX | 3000–3999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SPRINGFLD | MA |
| 2008-01-03 | 413-391-0XXX | 0000–0999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | SPRINGFLD | MA |
| 2008-01-03 | 413-391-1XXX | 1000–1999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | SPRINGFLD | MA |
| 2007-12-19 | 413-301-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | SPRINGFLD | MA |
| 2007-12-19 | 413-301-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | SPRINGFLD | MA |
| 2007-12-07 | 413-548-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | AMHRSTFKLN | MA |
| 2007-11-29 | 413-579-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | WESTFIELD | MA |
| 2007-11-19 | 413-328-3XXX | 3000–3999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SPRINGFLD | MA |
| 2007-11-12 | 413-203-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | EASTHAMPTN | MA |
| 2007-10-30 | 413-717-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | GREATBNGTN | MA |
| 2007-10-29 | 413-388-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CHICOPEE | MA |
| 2007-10-24 | 413-663-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | NORTHADAMS | MA |
| 2007-10-16 | 413-306-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | SPRINGFLD | MA |
| 2007-10-16 | 413-328-8XXX | 8000–8999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | 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.