NumberResearchRecent thousands-block assignments
9 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 909
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 |
|---|---|---|---|---|---|---|---|
| 2002-05-23 | 909-583-9XXX | 9000–9999 | Assigned | PAETEC ITEL, LLC | 829J | REDLANDS | CA |
| 2002-05-06 | 909-463-7XXX | 7000–7999 | Assigned | FRONTIER CALIFORNIA INC. | 2319 | ETIWANDA | CA |
| 2002-03-11 | 909-804-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | MARSHALL | CA |
| 2002-02-13 | 909-450-0XXX | 0000–0999 | Assigned | PAETEC ITEL, LLC | 829J | CLAREMONT | CA |
| 2002-02-13 | 909-474-8XXX | 8000–8999 | Assigned | PAETEC ITEL, LLC | 829J | MARSHALL | CA |
| 2002-01-31 | 909-349-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | FONTANA | CA |
| 2001-12-17 | 909-752-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | BIGBEAR LK | CA |
| 2001-12-07 | 909-475-4XXX | 4000–4999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | MARSHALL | CA |
| 2001-12-07 | 909-546-1XXX | 1000–1999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | RIALTO | CA |
| 2001-12-04 | 909-380-8XXX | 8000–8999 | Assigned | PAETEC ITEL, LLC | 829J | S BERNDINO | CA |
| 2001-12-04 | 909-802-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | POMONA | CA |
| 2001-11-02 | 909-503-1XXX | 1000–1999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | COLTON | CA |
| 2001-11-02 | 909-557-1XXX | 1000–1999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | REDLANDS | CA |
| 2001-11-02 | 909-803-1XXX | 1000–1999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | ETIWANDA | CA |
| 2001-11-02 | 909-915-1XXX | 1000–1999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | S BERNDINO | CA |
| 2001-10-22 | 909-463-4XXX | 4000–4999 | Assigned | FRONTIER CALIFORNIA INC. | 2319 | ETIWANDA | CA |
| 2001-10-02 | 909-912-0XXX | 0000–0999 | Assigned | PAETEC ITEL, LLC | 829J | UPLAND | CA |
| 2001-09-17 | 909-548-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CHINO | CA |
| 2001-09-17 | 909-569-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | DIAMONDBAR | CA |
| 2001-09-17 | 909-612-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DIAMONDBAR | CA |
| 2001-08-28 | 909-433-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | COLTON | CA |
| 2001-07-04 | 909-954-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | COLTON | CA |
| 2001-05-18 | 909-463-9XXX | 9000–9999 | Assigned | FRONTIER CALIFORNIA INC. | 2319 | ETIWANDA | CA |
| 2001-05-14 | 909-546-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | RIALTO | CA |
| 2001-05-14 | 909-770-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | FONTANA | CA |
| 2001-05-14 | 909-801-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | REDLANDS | CA |
| 2001-05-14 | 909-942-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | UPLAND | CA |
| 2001-05-14 | 909-954-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | COLTON | CA |
| 2001-05-14 | 909-969-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | ONTARIO | CA |
| 2001-05-11 | 909-915-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | S BERNDINO | CA |
| 2001-03-26 | 909-331-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ONTARIO | CA |
| 2001-03-26 | 909-664-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CHINO | CA |
| 2001-02-19 | 909-942-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | UPLAND | CA |
| 2001-02-07 | 909-664-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | CHINO | CA |
| 2001-01-12 | 909-919-1XXX | 1000–1999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | UPLAND | CA |
| 2000-12-16 | 909-945-8XXX | 8000–8999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | UPLAND | CA |
| 2000-12-10 | 909-867-8XXX | 8000–8999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | RUNNINGSPG | CA |
| 2000-12-09 | 909-266-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | S BERNDINO | CA |
| 2000-12-09 | 909-291-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | UPLAND | CA |
| 2000-12-08 | 909-291-4XXX | 4000–4999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | UPLAND | CA |
| 2000-12-08 | 909-348-0XXX | 0000–0999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | DIAMONDBAR | CA |
| 2000-12-08 | 909-447-7XXX | 7000–7999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | CLAREMONT | CA |
| 2000-12-08 | 909-525-9XXX | 9000–9999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | POMONA | CA |
| 2000-12-08 | 909-770-8XXX | 8000–8999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | FONTANA | CA |
| 2000-12-08 | 909-993-0XXX | 0000–0999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | CHINO | CA |
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.