NumberResearchRecent thousands-block assignments
18 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 878
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 |
|---|---|---|---|---|---|---|---|
| 2022-06-06 | 878-256-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PTTSBGZON1 | PA |
| 2022-06-06 | 878-256-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PTTSBGZON1 | PA |
| 2022-06-06 | 878-256-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PTTSBGZON1 | PA |
| 2022-06-02 | 878-256-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTTSBGZON1 | PA |
| 2022-05-19 | 878-256-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PTTSBGZON1 | PA |
| 2022-05-19 | 878-256-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PTTSBGZON1 | PA |
| 2022-05-18 | 878-249-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | LEECHBURG | PA |
| 2022-05-18 | 878-256-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | PTTSBGZON1 | PA |
| 2022-05-06 | 878-268-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | IMPERIAL | PA |
| 2022-04-14 | 878-250-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CRIDERSCOR | PA |
| 2022-04-07 | 878-356-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - PA | 002F | WESTNEWTON | PA |
| 2022-03-29 | 878-265-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - PA | 002F | CALIFORNIA | PA |
| 2022-03-10 | 878-336-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | PTTSBGZON6 | PA |
| 2022-03-02 | 878-529-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - PA | 002F | BROWNSVL | PA |
| 2022-02-24 | 878-335-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | LOWELLVL | PA |
| 2022-02-24 | 878-736-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | MARCHAND | PA |
| 2022-02-24 | 878-782-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | HOOKSTOWN | PA |
| 2022-02-23 | 878-336-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PTTSBGZON6 | PA |
| 2022-02-22 | 878-248-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | GIBSONIA | PA |
| 2022-02-18 | 878-265-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CALIFORNIA | PA |
| 2022-02-18 | 878-265-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CALIFORNIA | PA |
| 2022-02-18 | 878-784-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | EPALESTINE | PA |
| 2022-02-16 | 878-626-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | PTTSBGZON7 | PA |
| 2022-02-15 | 878-277-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | BLAIRSVL | PA |
| 2022-02-14 | 878-336-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | PTTSBGZON6 | PA |
| 2022-02-14 | 878-336-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | PTTSBGZON6 | PA |
| 2022-02-14 | 878-673-8XXX | 8000–8999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | DERRY | PA |
| 2022-02-11 | 878-265-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - PA | 002F | CALIFORNIA | PA |
| 2022-02-10 | 878-247-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BELLEVRNON | PA |
| 2022-02-10 | 878-247-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BELLEVRNON | PA |
| 2022-02-10 | 878-322-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DONORA | PA |
| 2022-02-10 | 878-322-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DONORA | PA |
| 2022-02-10 | 878-677-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | NEWWLMNGTN | PA |
| 2022-02-10 | 878-677-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | NEWWLMNGTN | PA |
| 2022-02-09 | 878-238-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LIGONIER | PA |
| 2022-02-03 | 878-834-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PTTSBGZON8 | PA |
| 2022-02-03 | 878-834-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PTTSBGZON8 | PA |
| 2022-02-02 | 878-245-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BEAVER FLS | PA |
| 2022-02-02 | 878-245-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BEAVER FLS | PA |
| 2022-01-27 | 878-217-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | CRIDERSCOR | PA |
| 2022-01-27 | 878-217-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | CRIDERSCOR | PA |
| 2022-01-27 | 878-247-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BELLEVRNON | PA |
| 2022-01-26 | 878-259-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | EXPORT | PA |
| 2022-01-26 | 878-336-2XXX | 2000–2999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | PTTSBGZON6 | PA |
| 2022-01-26 | 878-844-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | INDIANA | PA |
| 2022-01-25 | 878-246-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | CLAYSVILLE | PA |
| 2022-01-20 | 878-732-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | PTGSBNZN19 | PA |
| 2022-01-18 | 878-345-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | PTGSBNZN20 | PA |
| 2022-01-13 | 878-786-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | GREENSBURG | PA |
| 2022-01-13 | 878-786-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | GREENSBURG | PA |
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.