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 |
|---|---|---|---|---|---|---|---|
| 2008-09-05 | 413-717-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | GREATBNGTN | MA |
| 2008-09-05 | 413-887-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | HOLYOKE | MA |
| 2008-09-04 | 413-862-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | RUSSELL | MA |
| 2008-08-11 | 413-259-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | AMHRSTFKLN | MA |
| 2008-08-08 | 413-272-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | SPRINGFLD | MA |
| 2008-08-08 | 413-544-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | PALMER | MA |
| 2008-07-24 | 413-388-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CHICOPEE | MA |
| 2008-07-22 | 413-523-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | SPRINGFLD | MA |
| 2008-07-21 | 413-654-0XXX | 0000–0999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SPRINGFLD | MA |
| 2008-07-21 | 413-726-5XXX | 5000–5999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SPRINGFLD | MA |
| 2008-07-15 | 413-304-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | SPRINGFLD | MA |
| 2008-07-11 | 413-557-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MA | 892D | CHICOPEE | MA |
| 2008-07-08 | 413-426-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | SPRINGFLD | MA |
| 2008-07-08 | 413-579-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | WESTFIELD | MA |
| 2008-07-08 | 413-992-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | AMHERST | MA |
| 2008-07-03 | 413-212-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PITTSFIELD | MA |
| 2008-07-03 | 413-242-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PITTSFIELD | MA |
| 2008-07-03 | 413-346-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NORTHADAMS | MA |
| 2008-07-03 | 413-347-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PITTSFIELD | MA |
| 2008-06-17 | 413-505-0XXX | 0000–0999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SPRINGFLD | MA |
| 2008-06-17 | 413-505-1XXX | 1000–1999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SPRINGFLD | MA |
| 2008-06-17 | 413-505-2XXX | 2000–2999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SPRINGFLD | MA |
| 2008-06-12 | 413-342-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | SPRINGFLD | MA |
| 2008-05-28 | 413-363-6XXX | 6000–6999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SPRINGFLD | MA |
| 2008-05-28 | 413-363-7XXX | 7000–7999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | SPRINGFLD | MA |
| 2008-05-16 | 413-357-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | GRANVILLE | MA |
| 2008-05-16 | 413-893-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | MONSON | MA |
| 2008-05-16 | 413-998-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | SOUTHWICK | MA |
| 2008-05-15 | 413-391-2XXX | 2000–2999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | SPRINGFLD | MA |
| 2008-05-15 | 413-391-3XXX | 3000–3999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | SPRINGFLD | MA |
| 2008-05-15 | 413-391-4XXX | 4000–4999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | SPRINGFLD | MA |
| 2008-05-15 | 413-391-5XXX | 5000–5999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | SPRINGFLD | MA |
| 2008-05-15 | 413-629-3XXX | 3000–3999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | PITTSFIELD | MA |
| 2008-05-15 | 413-629-4XXX | 4000–4999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | PITTSFIELD | MA |
| 2008-05-15 | 413-629-5XXX | 5000–5999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | PITTSFIELD | MA |
| 2008-05-15 | 413-650-3XXX | 3000–3999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | HOLYOKE | MA |
| 2008-05-15 | 413-650-4XXX | 4000–4999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | HOLYOKE | MA |
| 2008-05-15 | 413-650-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | HOLYOKE | MA |
| 2008-05-15 | 413-650-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | HOLYOKE | MA |
| 2008-05-15 | 413-835-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | AMHERST | MA |
| 2008-05-15 | 413-835-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | AMHERST | MA |
| 2008-05-15 | 413-835-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | AMHERST | MA |
| 2008-05-15 | 413-835-9XXX | 9000–9999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | AMHERST | MA |
| 2008-05-15 | 413-888-2XXX | 2000–2999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | CHICOPEE | MA |
| 2008-05-15 | 413-888-4XXX | 4000–4999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | CHICOPEE | MA |
| 2008-05-15 | 413-888-5XXX | 5000–5999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | CHICOPEE | MA |
| 2008-05-15 | 413-888-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | CHICOPEE | MA |
| 2008-05-13 | 413-835-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | AMHERST | MA |
| 2008-05-12 | 413-325-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GREENFIELD | MA |
| 2008-05-07 | 413-341-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | NORTHAMPTN | 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.