Prefix 913-399 — Kansas City, KS
- Area code
- 913
- Prefix (NXX)
- 399
- Rate center
- Kansas City
- State
- Kansas
- Time zone
- Central
- Code holder
- HD CARRIER LLC
- OCN
- 321J
- Pooled
- Yes (thousands-block pooling)
- Assigned
- 2021-05-20
- LATA
- 524
913-399 identifies a block of numbers in Kansas City, KS, within the 913 area code. Every US prefix is tied to exactly one rate center; this one is Kansas City.
The rate center lies in the Kansas City, MO-KS Metropolitan Statistical Area. The serving LATA is 524. Local time follows the Central zone.
Treat the on-screen number as a hint, not evidence — 913-399 can be spoofed like any US prefix. If a call feels off, verify through an official callback number and file a complaint with the FCC or FTC.
NANPA's central-office code records list HD CARRIER LLC (OCN 321J) as the code holder, assigned May 20, 2021. Because 913-399 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 913-396 | Kansas City | PAETEC ITEL, LLC |
| 913-397 | Olathe | SOUTHWESTERN BELL |
| 913-398 | Tonganoxie | ONVOY, LLC - KS |
| 913-400 | Kansas City | MIDCONTINENT COMMUNICATIONS - KS |
| 913-401 | Kansas City | AERIAL COMMUNICATIONS, INC. |
| 913-402 | Kansas City | SOUTHWESTERN BELL |
FAQ
Where is 913-399 located?
The prefix is assigned to the Kansas City rate center in KS, area code 913. It is part of the Kansas City, MO-KS Metropolitan Statistical Area.
Which company owns 913-399 numbers?
HD CARRIER LLC holds the code, but the prefix is pooled — individual thousands-blocks can be assigned to other carriers, and numbers may be ported to any provider.
Is a call from 913-399 safe to answer?
The prefix itself says nothing about the caller. Legitimate Kansas City businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.