NumberResearchRecent thousands-block assignments
2 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 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 |
|---|---|---|---|---|---|---|---|
| 2008-04-30 | 339-987-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | RANDOLPH | MA |
| 2008-04-25 | 339-645-4XXX | 4000–4999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | WOBURN | MA |
| 2008-04-24 | 339-219-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | WAKEFIELD | MA |
| 2008-04-16 | 339-219-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | WAKEFIELD | MA |
| 2008-02-08 | 339-230-9XXX | 9000–9999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | SHARON | MA |
| 2008-02-08 | 339-545-5XXX | 5000–5999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | MEDFORD | MA |
| 2008-02-07 | 339-337-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | COHASSET | MA |
| 2008-02-07 | 339-502-3XXX | 3000–3999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | CANTON | MA |
| 2008-02-07 | 339-707-3XXX | 3000–3999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | ARLINGTON | MA |
| 2008-02-05 | 339-686-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | WELLESLEY | MA |
| 2008-02-05 | 339-686-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | WELLESLEY | MA |
| 2008-02-04 | 339-298-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | WOBURN | MA |
| 2008-02-04 | 339-298-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | WOBURN | MA |
| 2008-01-22 | 339-227-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | WOBURN | MA |
| 2008-01-22 | 339-686-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | WELLESLEY | MA |
| 2008-01-21 | 339-221-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | MEDFORD | MA |
| 2008-01-21 | 339-234-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | BURLINGTON | MA |
| 2008-01-16 | 339-298-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | WOBURN | MA |
| 2008-01-16 | 339-298-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | WOBURN | MA |
| 2008-01-09 | 339-204-3XXX | 3000–3999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | DEDHAM | MA |
| 2007-10-12 | 339-293-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MELROSE | MA |
| 2007-10-09 | 339-224-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MALDEN | MA |
| 2007-10-09 | 339-224-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MALDEN | MA |
| 2007-07-13 | 339-227-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | WOBURN | MA |
| 2007-06-26 | 339-440-7XXX | 7000–7999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | LYNN | MA |
| 2007-06-14 | 339-788-9XXX | 9000–9999 | Assigned | COMCAST IP PHONE, LLC | 318J | ROCKLAND | MA |
| 2007-06-06 | 339-237-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | CANTON | MA |
| 2007-04-24 | 339-219-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | WAKEFIELD | MA |
| 2007-03-23 | 339-707-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ARLINGTON | MA |
| 2007-02-12 | 339-440-6XXX | 6000–6999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | LYNN | MA |
| 2007-01-04 | 339-440-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | LYNN | MA |
| 2006-11-01 | 339-832-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | KINGSTON | MA |
| 2006-10-26 | 339-499-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WEYMOUTH | MA |
| 2006-09-07 | 339-203-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | WAKEFIELD | MA |
| 2006-08-24 | 339-832-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | KINGSTON | MA |
| 2006-08-07 | 339-788-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | ROCKLAND | MA |
| 2006-07-12 | 339-219-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | WAKEFIELD | MA |
| 2006-05-30 | 339-440-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | LYNN | MA |
| 2006-05-30 | 339-440-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | LYNN | MA |
| 2006-05-22 | 339-368-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | ARLINGTON | MA |
| 2006-05-12 | 339-223-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | LEXINGTON | MA |
| 2006-05-10 | 339-526-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | SCITUATE | MA |
| 2006-04-13 | 339-204-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | DEDHAM | MA |
| 2006-04-13 | 339-337-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | COHASSET | MA |
| 2006-04-05 | 339-203-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | WAKEFIELD | MA |
| 2006-04-04 | 339-309-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | KINGSTON | MA |
| 2006-03-27 | 339-309-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | KINGSTON | MA |
| 2006-03-16 | 339-987-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | RANDOLPH | MA |
| 2006-03-03 | 339-469-5XXX | 5000–5999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | ROCKLAND | MA |
| 2006-02-27 | 339-368-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | ARLINGTON | 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.