Strasburg, CO — rate center

NANPA rate center & CO code data, current as of July 28, 2026.

Strasburg is a telephone rate center in Colorado served by area codes 303, 720, 983. A rate center is the locality the phone industry uses to anchor numbers for billing; every prefix listed below is registered here.

4 central-office prefixes are currently anchored to this rate center, held by 4 different carriers. Pooling applies to 3 of them — individual thousands-blocks may belong to different companies.

The rate center belongs to the Denver-Aurora-Centennial, CO Metropolitan Statistical Area. Routing-wise it sits in LATA 656.

Because 303, 720, 983 all serve this territory, two Strasburg numbers can look completely different while being neighbors — check the prefix, not just the area code.

Strasburg is a small rate center: 4 prefixes across 4 carriers serve it. Small localities like this often keep the same blocks for decades, so the prefix-to-place mapping tends to be stable.

Treat this data as geography of the number, not of the caller: porting, VoIP and caller-ID spoofing all detach the two. When a call matters, hang up and call back through an official number.

Prefixes anchored to Strasburg

FAQ

What area code is Strasburg, CO?

Strasburg is served by 3 area codes — 303, 720, 983 — which overlay the same territory.

How many prefixes does Strasburg have?

4 active NXX prefixes are anchored to this rate center in NANPA records, held by 4 carriers.

Is a call from a Strasburg prefix really from Strasburg?

Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.