NumberResearchRecent thousands-block assignments
7 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 508
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 |
|---|---|---|---|---|---|---|---|
| 2018-02-19 | 508-206-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NATICK | MA |
| 2018-02-19 | 508-206-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NATICK | MA |
| 2018-02-15 | 508-219-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | EASTON | MA |
| 2018-02-06 | 508-300-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MA | 892D | FALL RIVER | MA |
| 2018-02-06 | 508-807-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | BRIDGEWTR | MA |
| 2018-01-17 | 508-349-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WELLFLEET | MA |
| 2018-01-17 | 508-603-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | UPTON | MA |
| 2018-01-08 | 508-632-3XXX | 3000–3999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | HARWICH | MA |
| 2017-12-08 | 508-526-3XXX | 3000–3999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | UXBRIDGE | MA |
| 2017-11-10 | 508-570-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | FRANKLIN | MA |
| 2017-10-16 | 508-796-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | WORCESTER | MA |
| 2017-10-12 | 508-807-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BRIDGEWTR | MA |
| 2017-10-12 | 508-807-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BRIDGEWTR | MA |
| 2017-10-06 | 508-599-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | WESTBORO | MA |
| 2017-09-20 | 508-443-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | BRIDGEWTR | MA |
| 2017-09-08 | 508-619-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | DENNIS | MA |
| 2017-08-23 | 508-365-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | WORCESTER | MA |
| 2017-07-18 | 508-356-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | CATAUMET | MA |
| 2017-06-15 | 508-302-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | FRAMINGHAM | MA |
| 2017-06-15 | 508-739-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | FRAMINGHAM | MA |
| 2017-06-12 | 508-461-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | WEBSTER | MA |
| 2017-06-12 | 508-632-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | HARWICH | MA |
| 2017-04-28 | 508-213-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MA | 892D | WEBSTER | MA |
| 2017-04-27 | 508-464-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | UPTON | MA |
| 2017-04-27 | 508-484-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | BROCKTON | MA |
| 2017-04-27 | 508-526-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | UXBRIDGE | MA |
| 2017-04-24 | 508-276-7XXX | 7000–7999 | Assigned | TELNYX LLC | 073H | WAYLAND | MA |
| 2017-04-18 | 508-217-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | BRIDGEWTR | MA |
| 2017-04-18 | 508-286-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | NORTON | MA |
| 2017-04-18 | 508-316-5XXX | 5000–5999 | Assigned | TELNYX LLC | 073H | NO ATTLEBO | MA |
| 2017-04-18 | 508-351-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | NORTHBORO | MA |
| 2017-04-18 | 508-680-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | NANTUCKET | MA |
| 2017-04-14 | 508-389-4XXX | 4000–4999 | Assigned | TELNYX LLC | 073H | WESTBORO | MA |
| 2017-04-12 | 508-803-6XXX | 6000–6999 | Assigned | TELNYX LLC | 073H | FRANKLIN | MA |
| 2017-04-06 | 508-538-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MARION | MA |
| 2017-03-30 | 508-302-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | FRAMINGHAM | MA |
| 2017-01-20 | 508-383-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | FRAMINGHAM | MA |
| 2017-01-12 | 508-895-5XXX | 5000–5999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | BROCKTON | MA |
| 2017-01-05 | 508-383-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | FRAMINGHAM | MA |
| 2017-01-05 | 508-383-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | FRAMINGHAM | MA |
| 2016-12-28 | 508-530-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | FRANKLIN | MA |
| 2016-12-06 | 508-593-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CHATHAM | MA |
| 2016-11-18 | 508-563-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA | 268F | CATAUMET | MA |
| 2016-10-04 | 508-571-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | NORTHBORO | MA |
| 2016-09-23 | 508-440-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | FRANKLIN | MA |
| 2016-09-06 | 508-338-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | VINEYRDHVN | MA |
| 2016-07-22 | 508-418-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | HYANNIS | MA |
| 2016-07-13 | 508-720-2XXX | 2000–2999 | Assigned | PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA | 268F | NATICK | MA |
| 2016-07-13 | 508-720-5XXX | 5000–5999 | Assigned | PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA | 268F | NATICK | MA |
| 2016-07-13 | 508-720-6XXX | 6000–6999 | Assigned | PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA | 268F | NATICK | 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.