Fort Lupton, CO — rate center
The Fort Lupton rate center (Colorado) anchors 28 active prefixes under area codes 303, 720, 983. Rate centers, not city limits, are what phone numbers are legally tied to.
NANPA records show 28 active prefixes here across 8 carriers. 25 prefixes participate in thousands-block pooling, so blocks of 1,000 numbers are shared between carriers.
Routing-wise it sits in LATA 656.
Multiple area codes over one rate center (303/720/983) is the overlay pattern: same geography, different first three digits.
As always with US numbering: a prefix anchored to Fort Lupton tells you where the block was issued. The person calling may have ported the number, moved away, or be spoofing it entirely — verify callers through independently found contact details.
Prefixes anchored to Fort Lupton
| Prefix | Code holder | Pooled |
|---|---|---|
| 303-304 | NEW CINGULAR WIRELESS PCS, LLC | Yes |
| 303-502 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | Yes |
| 303-506 | NEW CINGULAR WIRELESS PCS, LLC | Yes |
| 303-535 | ONVOY, LLC - CO | Yes |
| 303-710 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | Yes |
| 303-717 | NEW CINGULAR WIRELESS PCS, LLC | No |
| 303-718 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | Yes |
| 303-720 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | Yes |
| 303-857 | QWEST CORPORATION | Yes |
| 303-956 | NEW CINGULAR WIRELESS PCS, LLC | No |
| 303-990 | T-MOBILE USA, INC. | Yes |
FAQ
What area code is Fort Lupton, CO?
Fort Lupton is served by 3 area codes — 303, 720, 983 — which overlay the same territory.
How many prefixes does Fort Lupton have?
28 active NXX prefixes are anchored to this rate center in NANPA records, held by 8 carriers.
Is a call from a Fort Lupton prefix really from Fort Lupton?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.