419.1
Structure facts
What the site currently knows about this tower, pulled from the public source stack behind the route graph.
Carrier presence
The carrier and technology hints that make this more useful than a raw tower-owner listing.
Nearby pages
Other tower detail pages within a short drive of this site.
Chicago, IL
ASR matchedChicago 49.6 ASR-1019868
49.6 with 3 carrier presences. Joined to nearby OpenCelliD cells within 200 meters of the FCC structure. Closest matched cell was 172 meters away.
181 N DEARBORN ST
Chicago, IL
Crowdsourced onlyApproximate cell site near Chicago, IL
Crowdsourced cell site with 2 carrier presences. Approximate OpenCelliD-only site clustered from 22 cell observations across 202 crowd samples within 1000 meters. Confidence: high. No FCC ASR structure matched inside the 200 meter join radius.
Approximate location near Chicago, IL 60695
Chicago, IL
Crowdsourced onlyApproximate cell site near Chicago, IL
Crowdsourced cell site with 3 carrier presences. Approximate OpenCelliD-only site clustered from 36 cell observations across 447 crowd samples within 1000 meters. Confidence: high. No FCC ASR structure matched inside the 200 meter join radius.
Approximate location near Chicago, IL 60654
Chicago, IL
ASR matchedChicago 162.2 ASR-1217827
162.2 with 3 carrier presences. Joined to nearby OpenCelliD cells within 200 meters of the FCC structure. Closest matched cell was 161 meters away.
221 N. LaSalle Street
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.