NumberResearchRecent thousands-block assignments
2 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 339
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 |
|---|---|---|---|---|---|---|---|
| 2005-07-06 | 339-440-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LYNN | MA |
| 2005-05-06 | 339-222-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | WALTHAM | MA |
| 2005-05-06 | 339-235-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | BRAINTREE | MA |
| 2005-04-06 | 339-223-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | LEXINGTON | MA |
| 2005-03-08 | 339-222-5XXX | 5000–5999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | WALTHAM | MA |
| 2005-03-08 | 339-293-5XXX | 5000–5999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | MELROSE | MA |
| 2005-03-07 | 339-613-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | NORWELL | MA |
| 2005-02-08 | 339-227-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | WOBURN | MA |
| 2005-02-07 | 339-221-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | MEDFORD | MA |
| 2005-01-26 | 339-337-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | COHASSET | MA |
| 2004-12-29 | 339-532-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | REVERE | MA |
| 2004-12-02 | 339-499-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | WEYMOUTH | MA |
| 2004-10-11 | 339-221-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | MEDFORD | MA |
| 2004-10-09 | 339-469-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ROCKLAND | MA |
| 2004-10-08 | 339-223-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | LEXINGTON | MA |
| 2004-09-07 | 339-222-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | WALTHAM | MA |
| 2004-07-07 | 339-440-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | LYNN | MA |
| 2004-06-02 | 339-223-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | LEXINGTON | MA |
| 2004-03-09 | 339-499-0XXX | 0000–0999 | Assigned | PAETEC ITEL, LLC | 829J | WEYMOUTH | MA |
| 2004-01-09 | 339-222-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | WALTHAM | MA |
| 2004-01-09 | 339-237-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | CANTON | MA |
| 2003-12-22 | 339-337-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | COHASSET | MA |
| 2003-11-17 | 339-532-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | REVERE | MA |
| 2003-10-06 | 339-221-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | MEDFORD | MA |
| 2002-12-27 | 339-532-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | REVERE | MA |
| 2002-12-20 | 339-499-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | WEYMOUTH | MA |
| 2002-11-04 | 339-235-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | BRAINTREE | MA |
| 2002-11-04 | 339-236-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | HINGHAM | MA |
| 2002-11-04 | 339-237-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | CANTON | MA |
| 2002-10-31 | 339-203-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | WAKEFIELD | MA |
| 2002-10-31 | 339-221-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | MEDFORD | MA |
| 2002-10-31 | 339-440-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | LYNN | MA |
| 2002-09-04 | 339-203-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | WAKEFIELD | MA |
| 2002-01-29 | 339-469-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ROCKLAND | MA |
| 2002-01-16 | 339-219-2XXX | 2000–2999 | Assigned | PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA | 268F | WAKEFIELD | MA |
| 2001-11-28 | 339-883-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LYNN | MA |
| 2001-09-19 | 339-219-0XXX | 0000–0999 | Assigned | PAETEC ITEL, LLC | 829J | WAKEFIELD | MA |
| 2001-06-14 | 339-674-9XXX | 9000–9999 | Assigned | PAETEC ITEL, LLC | 829J | MEDFORD | 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.