NumberResearchRecent thousands-block assignments
14 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 |
|---|---|---|---|---|---|---|---|
| 2005-07-18 | 413-320-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | NORTHAMPTN | MA |
| 2005-07-18 | 413-426-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | SPRINGFLD | MA |
| 2005-07-18 | 413-426-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | SPRINGFLD | MA |
| 2005-06-28 | 413-729-5XXX | 5000–5999 | Assigned | TC SYSTEMS, INC. | 7135 | WESTFIELD | MA |
| 2005-06-23 | 413-325-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GREENFIELD | MA |
| 2005-06-20 | 413-283-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | PALMER | MA |
| 2005-06-20 | 413-284-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | PALMER | MA |
| 2005-06-20 | 413-284-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | PALMER | MA |
| 2005-06-07 | 413-313-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | HOLYOKE | MA |
| 2005-06-07 | 413-652-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | NORTHADAMS | MA |
| 2005-06-03 | 413-754-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | LONGMEADOW | MA |
| 2005-05-27 | 413-623-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | BECKET | MA |
| 2005-05-18 | 413-829-1XXX | 1000–1999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | GREENFIELD | MA |
| 2005-05-17 | 413-209-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SPRINGFLD | MA |
| 2005-05-17 | 413-212-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PITTSFIELD | MA |
| 2005-05-17 | 413-214-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SPRINGFLD | MA |
| 2005-05-17 | 413-429-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GREATBNGTN | MA |
| 2005-05-09 | 413-308-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | LUDLOW | MA |
| 2005-05-09 | 413-658-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | AMHERST | MA |
| 2005-05-05 | 413-209-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | SPRINGFLD | MA |
| 2005-05-05 | 413-209-9XXX | 9000–9999 | Assigned | COMCAST IP PHONE, LLC | 318J | SPRINGFLD | MA |
| 2005-04-22 | 413-931-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | STOCKBDG | MA |
| 2005-04-13 | 413-313-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | HOLYOKE | MA |
| 2005-04-13 | 413-454-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | WESTFIELD | MA |
| 2005-04-13 | 413-884-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | WILLIAMSTN | MA |
| 2005-04-05 | 413-512-1XXX | 1000–1999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | GREENFIELD | MA |
| 2005-04-01 | 413-341-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | NORTHAMPTN | MA |
| 2005-03-25 | 413-977-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | WESTFIELD | MA |
| 2005-03-01 | 413-275-2XXX | 2000–2999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | HOLYOKE | MA |
| 2005-02-28 | 413-315-7XXX | 7000–7999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | HOLYOKE | MA |
| 2005-02-23 | 413-461-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | AMHERST | MA |
| 2005-02-22 | 413-776-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | ADAMS | MA |
| 2005-02-22 | 413-776-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | ADAMS | MA |
| 2005-02-09 | 413-273-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | SPRINGFLD | MA |
| 2005-01-26 | 413-259-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | AMHRSTFKLN | MA |
| 2005-01-26 | 413-315-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | HOLYOKE | MA |
| 2005-01-25 | 413-455-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SPRINGFLD | MA |
| 2005-01-25 | 413-455-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SPRINGFLD | MA |
| 2005-01-25 | 413-455-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SPRINGFLD | MA |
| 2005-01-25 | 413-455-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SPRINGFLD | MA |
| 2005-01-25 | 413-455-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SPRINGFLD | MA |
| 2005-01-25 | 413-455-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SPRINGFLD | MA |
| 2005-01-25 | 413-768-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GREENFIELD | MA |
| 2005-01-25 | 413-768-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GREENFIELD | MA |
| 2005-01-24 | 413-230-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | AMHERST | MA |
| 2005-01-20 | 413-824-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | GREENFIELD | MA |
| 2005-01-13 | 413-265-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | HOLYOKE | MA |
| 2005-01-13 | 413-464-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | PITTSFIELD | MA |
| 2005-01-13 | 413-636-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | SPRINGFLD | MA |
| 2005-01-13 | 413-668-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | PALMER | MA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.