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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| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2006-11-02 | 951-797-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | BANNING | CA |
| 2006-10-25 | 424-294-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | HAWTHORNE | CA |
| 2006-10-20 | 858-345-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | DEL MAR | CA |
| 2006-10-20 | 858-704-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | DEL MAR | CA |
| 2006-10-13 | 323-476-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | LSAN DA 06 | CA |
| 2006-10-13 | 619-684-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNDG SNDG | CA |
| 2006-10-13 | 619-684-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNDG SNDG | CA |
| 2006-10-13 | 619-684-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNDG SNDG | CA |
| 2006-10-13 | 619-684-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNDG SNDG | CA |
| 2006-10-13 | 619-684-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNDG SNDG | CA |
| 2006-10-13 | 619-764-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNDG SNDG | CA |
| 2006-10-03 | 760-469-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | PALMDESERT | CA |
| 2006-09-27 | 619-862-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | CHULAVISTA | CA |
| 2006-09-19 | 858-634-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNDG LVTA | CA |
| 2006-09-14 | 760-645-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | FALLBROOK | CA |
| 2006-09-14 | 760-990-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | FALLBROOK | CA |
| 2006-09-01 | 858-750-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | LA JOLLA | CA |
| 2006-09-01 | 858-750-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | LA JOLLA | CA |
| 2006-08-29 | 714-274-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | HUNTITNBCH | CA |
| 2006-08-29 | 714-274-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | HUNTITNBCH | CA |
| 2006-08-18 | 760-755-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | ESCONDIDO | CA |
| 2006-08-18 | 760-755-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | ESCONDIDO | CA |
| 2006-08-09 | 760-593-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SAN MARCOS | CA |
| 2006-07-27 | 619-684-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNDG SNDG | CA |
| 2006-07-07 | 858-901-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | RNCHOPNQTS | CA |
| 2006-06-22 | 818-668-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | RESEDA | CA |
| 2006-06-13 | 714-824-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SANTA ANA | CA |
| 2006-06-13 | 714-824-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SANTA ANA | CA |
| 2006-05-26 | 530-693-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7128 | OROVILLE | CA |
| 2006-05-26 | 760-904-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | PALM SPG | CA |
| 2006-05-26 | 760-904-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | PALM SPG | CA |
| 2006-05-24 | 760-834-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | PALMDESERT | CA |
| 2006-04-18 | 619-764-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNDG SNDG | CA |
| 2006-03-28 | 858-947-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | DEL MAR | CA |
| 2006-03-13 | 925-965-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | PLEASANTON | CA |
| 2006-03-09 | 760-393-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | INDIO | CA |
| 2006-03-09 | 760-393-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | INDIO | CA |
| 2006-03-06 | 760-482-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | EL CENTRO | CA |
| 2006-02-22 | 760-689-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | FALLBROOK | CA |
| 2006-02-07 | 707-832-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | EUREKA | CA |
| 2006-02-07 | 760-638-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | VALLEY CTR | CA |
| 2006-02-07 | 760-679-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | EL CENTRO | CA |
| 2006-02-07 | 831-902-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | HOLLISTER | CA |
| 2005-12-21 | 714-756-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | HUNTITNBCH | CA |
| 2005-12-21 | 714-845-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | HUNTITNBCH | CA |
| 2005-12-21 | 858-427-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNDG LVTA | CA |
| 2005-12-21 | 858-427-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNDG LVTA | CA |
| 2005-12-21 | 925-965-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | PLEASANTON | CA |
| 2005-12-01 | 661-469-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7128 | BUTTONWLLW | CA |
| 2005-11-30 | 714-929-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SANTA ANA | 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.