Tower detail

Chicago 43.8 ASR-1019870

401 S STATE ST. 43.8 owned by Registered owner with 3 listed carrier presences.

44 ft Height

43.8

Registered owner Owner

Structure registrant or inferred host

3 Carrier count

Distinct carrier presences on this site

ASR matched Data quality

Registered structure plus carrier overlay

Structure facts

What the site currently knows about this tower, pulled from the public source stack behind the route graph.

Registration ASR-1019870
Location Chicago, IL 60603
Lighting Unknown
Status Constructed
Coordinates 41.87611, -87.62694
Notes Joined to nearby OpenCelliD cells within 200 meters of the FCC structure. Closest matched cell was 170 meters away.

Carrier presence

The carrier and technology hints that make this more useful than a raw tower-owner listing.

AT&T

Approx. 0.9 miles
LTE

Derived from 1 OpenCelliD cell observations across 15 crowd samples.

T-Mobile

Approx. 0.6 miles
5G NR

Derived from 4 OpenCelliD cell observations across 17 crowd samples.

Verizon

Approx. 1.2 miles
LTE

Derived from 3 OpenCelliD cell observations across 62 crowd samples.

Nearby pages

Other tower detail pages within a short drive of this site.

Chicago, IL

ASR matched

Chicago 64.9 ASR-1209184

64.9 with 1 carrier presences. Joined to nearby OpenCelliD cells within 200 meters of the FCC structure. Closest matched cell was 161 meters away.

600 S. Michigan Ave.

65 ft 64.9 L00130191 0.2 miles
T-Mobile
5G NR LTE

Chicago, IL

Crowdsourced only

Approximate cell site near Chicago, IL

Crowdsourced cell site with 2 carrier presences. Approximate OpenCelliD-only site clustered from 5 cell observations across 12 crowd samples within 1000 meters. Confidence: high. No FCC ASR structure matched inside the 200 meter join radius.

Approximate location near Chicago, IL 60604

Unknown height Crowdsourced cell site Unknown / crowdsource-derived 0.3 miles
AT&T T-Mobile
5G NR LTE

Chicago, IL

Crowdsourced only

Approximate cell site near Chicago, IL

Crowdsourced cell site with 3 carrier presences. Approximate OpenCelliD-only site clustered from 27 cell observations across 368 crowd samples within 1000 meters. Confidence: high. No FCC ASR structure matched inside the 200 meter join radius.

Approximate location near Chicago, IL 60603

Unknown height Crowdsourced cell site Unknown / crowdsource-derived 0.3 miles
AT&T T-Mobile Verizon
5G NR LTE

Chicago, IL

ASR matched

Chicago 44.2 ASR-1209181

44.2 with 2 carrier presences. Joined to nearby OpenCelliD cells within 200 meters of the FCC structure. Closest matched cell was 60 meters away.

527 S. Wells

44 ft 44.2 L00130191 0.3 miles
AT&T T-Mobile
5G NR LTE

Why this detail page matters

The product logic behind showing a standalone tower page instead of burying the record in a generic list.

  • Exact ASR structures and crowdsourced-only nodes are both listed, with the difference labeled rather than hidden.
  • Tower owner is often a neutral host like Crown Castle or American Tower, not the wireless carrier itself.
  • Coverage ranges here are rough carrier-level estimates derived from reported cell radii. Treat them as indicative, not exact.