NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/18/2026
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, all time
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2005-11-30 | 714-929-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SANTA ANA | CA |
| 2005-11-30 | 714-929-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SANTA ANA | CA |
| 2005-11-22 | 760-469-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | PALMDESERT | CA |
| 2005-11-22 | 760-992-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | PALM SPG | CA |
| 2005-11-15 | 310-819-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | CMTN GRDN | CA |
| 2005-11-15 | 408-310-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | MORGANHILL | CA |
| 2005-11-15 | 408-827-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | LOS GATOS | CA |
| 2005-11-15 | 408-843-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | GILROY | CA |
| 2005-10-26 | 760-702-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | INDIO | CA |
| 2005-10-20 | 760-992-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | PALM SPG | CA |
| 2005-10-20 | 909-634-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | POMONA | CA |
| 2005-10-13 | 858-200-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | LA JOLLA | CA |
| 2005-10-13 | 858-539-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | LA JOLLA | CA |
| 2005-09-27 | 818-330-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | LACRSCENTA | CA |
| 2005-09-27 | 818-446-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SUNLD TJNG | CA |
| 2005-09-26 | 310-359-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | MALIBU | CA |
| 2005-09-26 | 310-881-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNMN MRVS | CA |
| 2005-09-26 | 310-896-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | REDONDO | CA |
| 2005-09-26 | 661-964-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNCA NHCS | CA |
| 2005-09-26 | 661-977-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNCA SGCC | CA |
| 2005-09-26 | 818-351-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | BRBN SNVY | CA |
| 2005-09-26 | 818-485-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNFN PACM | CA |
| 2005-09-26 | 818-488-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNFN GRHL | CA |
| 2005-09-26 | 818-665-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | AGOURA | CA |
| 2005-09-26 | 818-672-0XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNFN SPLV | CA |
| 2005-09-26 | 818-746-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | CANOGAPARK | CA |
| 2005-09-26 | 818-812-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | NORTHRIDGE | CA |
| 2005-09-26 | 818-942-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | NO HOLLYWD | CA |
| 2005-09-26 | 818-949-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | PSDN LACN | CA |
| 2005-09-26 | 909-962-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | CLAREMONT | CA |
| 2005-09-26 | 909-978-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | DIAMONDBAR | CA |
| 2005-09-15 | 858-901-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | RNCHOPNQTS | CA |
| 2005-09-12 | 858-309-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNDG LVTA | CA |
| 2005-09-12 | 951-893-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | CORONA | CA |
| 2005-08-26 | 760-262-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | INDIO | CA |
| 2005-08-26 | 760-469-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | PALMDESERT | CA |
| 2005-08-26 | 858-345-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | DEL MAR | CA |
| 2005-08-26 | 858-431-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | LA JOLLA | CA |
| 2005-08-26 | 858-704-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | DEL MAR | CA |
| 2005-08-25 | 858-324-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | RNCHOPNQTS | CA |
| 2005-08-25 | 858-368-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNDG MRMS | CA |
| 2005-08-25 | 858-368-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNDG MRMS | CA |
| 2005-08-25 | 858-368-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNDG MRMS | CA |
| 2005-08-25 | 858-380-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNDG LVTA | CA |
| 2005-08-25 | 858-380-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNDG LVTA | CA |
| 2005-08-23 | 760-444-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | OCSD CRLS | CA |
| 2005-08-23 | 760-444-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | OCSD CRLS | CA |
| 2005-08-23 | 760-477-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | VISTA | CA |
| 2005-08-23 | 760-542-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | VISTA | CA |
| 2005-08-23 | 760-542-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | VISTA | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.