Prefix 303-304 — Fort Lupton, CO
- Area code
- 303
- Prefix (NXX)
- 304
- Rate center
- Fort Lupton
- State
- Colorado
- Time zone
- Mountain
- Code holder
- NEW CINGULAR WIRELESS PCS, LLC
- OCN
- 6010
- Pooled
- Yes (thousands-block pooling)
- Assigned
- 2004-11-18
- LATA
- 656
A phone number starting 303-304 was issued in the Fort Lupton rate center of CO — part of area code 303.
NANPA's central-office code records list NEW CINGULAR WIRELESS PCS, LLC (OCN 6010) as the code holder, assigned November 18, 2004. Because 303-304 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.
A scammer can display 303-304 without ever touching CO. When in doubt, end the call and reach the company or agency through its official website; unwanted robocalls belong in the FTC's fraud report queue.
For routing purposes it sits in LATA 656. Numbers here keep Mountain time.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 303-301 | Denver | LEVEL 3 COMMUNICATIONS, LLC - CO |
| 303-302 | Denver | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 303-303 | Denver | HD CARRIER LLC |
| 303-305 | Denver | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 303-306 | Denver | QWEST CORPORATION |
| 303-307 | Denver | QWEST CORPORATION |
FAQ
Where is 303-304 located?
The prefix is assigned to the Fort Lupton rate center in CO, area code 303.
Which company owns 303-304 numbers?
NEW CINGULAR WIRELESS PCS, 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 303-304 safe to answer?
The prefix itself says nothing about the caller. Legitimate Fort Lupton businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.