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 |
|---|---|---|---|---|---|---|---|
| 2016-04-18 | 339-207-3XXX | 3000–3999 | Assigned | HD CARRIER LLC | 321J | LYNN | MA |
| 2016-04-18 | 339-207-6XXX | 6000–6999 | Assigned | HD CARRIER LLC | 321J | LYNN | MA |
| 2016-04-18 | 339-207-7XXX | 7000–7999 | Assigned | HD CARRIER LLC | 321J | LYNN | MA |
| 2016-04-18 | 339-207-8XXX | 8000–8999 | Assigned | HD CARRIER LLC | 321J | LYNN | MA |
| 2016-04-18 | 339-207-9XXX | 9000–9999 | Assigned | HD CARRIER LLC | 321J | LYNN | MA |
| 2016-04-18 | 339-209-4XXX | 4000–4999 | Assigned | HD CARRIER LLC | 321J | WEYMOUTH | MA |
| 2016-04-18 | 339-209-5XXX | 5000–5999 | Assigned | HD CARRIER LLC | 321J | WEYMOUTH | MA |
| 2016-04-18 | 339-209-6XXX | 6000–6999 | Assigned | HD CARRIER LLC | 321J | WEYMOUTH | MA |
| 2016-04-18 | 339-209-7XXX | 7000–7999 | Assigned | HD CARRIER LLC | 321J | WEYMOUTH | MA |
| 2016-04-18 | 339-209-8XXX | 8000–8999 | Assigned | HD CARRIER LLC | 321J | WEYMOUTH | MA |
| 2016-04-18 | 339-209-9XXX | 9000–9999 | Assigned | HD CARRIER LLC | 321J | WEYMOUTH | MA |
| 2016-03-16 | 339-333-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MA | 892D | LINCOLN | MA |
| 2016-03-16 | 339-333-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MA | 892D | LINCOLN | MA |
| 2016-03-08 | 339-215-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MA | 892D | LEXINGTON | MA |
| 2016-03-08 | 339-215-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | LEXINGTON | MA |
| 2016-03-08 | 339-900-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MA | 892D | MARSHFIELD | MA |
| 2016-03-08 | 339-900-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MA | 892D | MARSHFIELD | MA |
| 2016-03-04 | 339-210-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MA | 892D | SAUGUS | MA |
| 2016-03-04 | 339-215-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MA | 892D | LEXINGTON | MA |
| 2016-02-29 | 339-216-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MA | 892D | RANDOLPH | MA |
| 2016-02-29 | 339-293-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MA | 892D | MELROSE | MA |
| 2016-02-29 | 339-469-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MA | 892D | ROCKLAND | MA |
| 2016-02-29 | 339-777-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MA | 892D | NEEDHAM | MA |
| 2016-02-29 | 339-900-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | MARSHFIELD | MA |
| 2016-02-29 | 339-900-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MA | 892D | MARSHFIELD | MA |
| 2016-02-25 | 339-526-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MA | 892D | SCITUATE | MA |
| 2016-02-22 | 339-205-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | WEYMOUTH | MA |
| 2016-02-22 | 339-214-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NORWELL | MA |
| 2016-02-22 | 339-999-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | WOBURN | MA |
| 2016-02-12 | 339-777-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MA | 892D | NEEDHAM | MA |
| 2016-02-12 | 339-777-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MA | 892D | NEEDHAM | MA |
| 2016-02-08 | 339-333-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA | 268F | LINCOLN | MA |
| 2016-02-08 | 339-999-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MA | 892D | WOBURN | MA |
| 2016-02-08 | 339-999-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MA | 892D | WOBURN | MA |
| 2016-01-14 | 339-999-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MA | 892D | WOBURN | MA |
| 2016-01-12 | 339-216-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | RANDOLPH | MA |
| 2015-12-28 | 339-209-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MA | 892D | WEYMOUTH | MA |
| 2015-12-22 | 339-207-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | LYNN | MA |
| 2015-12-18 | 339-207-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MA | 892D | LYNN | MA |
| 2015-11-10 | 339-999-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | WOBURN | MA |
| 2015-10-08 | 339-214-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NORWELL | MA |
| 2015-10-08 | 339-999-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WOBURN | MA |
| 2015-09-28 | 339-333-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | LINCOLN | MA |
| 2015-09-22 | 339-900-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | MARSHFIELD | MA |
| 2015-09-16 | 339-777-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | NEEDHAM | MA |
| 2015-09-04 | 339-333-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | LINCOLN | MA |
| 2015-08-28 | 339-214-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NORWELL | MA |
| 2015-08-28 | 339-999-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WOBURN | MA |
| 2015-08-24 | 339-205-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | WEYMOUTH | MA |
| 2015-08-21 | 339-333-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | LINCOLN | 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.