RIVERSIDE prefixes in area code 909
NANPA records 7 assigned NXX blocks to rate center RIVERSIDE in area code 909, 0.9% of the 786 blocks assigned in the code. A rate center is the billing geography a block is allocated to – NANPA truncates the name to ten characters, so read it as a NANPA label rather than a town. 3 holders hold those blocks, the largest being SPOK, INC. (3), AMERICAN MESSAGING SERVICES, LLC (2), 33 WIRELESS INC. (2). The same rate center name also appears in area codes 319, 708, 856, 951 – overlay codes cover the same geography, so a rate center is served by all of them.
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 909-209 | American Messaging AMERICAN MESSAGING SERVICES, LLC | – | no | yes |
| 909-290 | Spok SPOK, INC. | – | no | yes |
| 909-339 | 33 WIRELESS INC. | – | no | yes |
| 909-412 | Spok SPOK, INC. | – | no | yes |
| 909-416 | Spok SPOK, INC. | – | no | yes |
| 909-540 | 33 WIRELESS INC. | – | no | yes |
| 909-812 | American Messaging AMERICAN MESSAGING SERVICES, LLC | – | no | yes |
The holder is who received the block from the numbering administrator. It is not necessarily the carrier serving a given number: numbers move with their owners, and a pooled block is shared.
Who holds the blocks
| Holder | Brand | Blocks | Share here |
|---|---|---|---|
| SPOK, INC. | Spok | 3 | 42.9% |
| AMERICAN MESSAGING SERVICES, LLC | American Messaging | 2 | 28.6% |
| 33 WIRELESS INC. | – | 2 | 28.6% |
Same rate center in other codes
Overlay codes cover the same geography, so one rate center is served by all of them.
Frequently asked
Which prefixes belong to RIVERSIDE in area code 909?
7 blocks: 209, 290, 339, 412, 416, 540, 812. The table above gives the holder of each.
Which carriers have numbers in RIVERSIDE?
SPOK, INC. (3 blocks), AMERICAN MESSAGING SERVICES, LLC (2 blocks), 33 WIRELESS INC. (2 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is RIVERSIDE a city?
It is a rate center – the unit NANPA allocates number blocks to. Its name is abbreviated to ten characters and is not necessarily a settlement: we print it as recorded rather than guess at the full name.