TowerCensus

Monopole 1277481 — Ontario, CA

Constructed

FCC Antenna Structure Registration 1277481 — monopole near Ontario, California. Single-shaft steel pole, the standard modern cell-site structure.

At a glance

FCC Antenna Structure Registration 1277481 is a 39 m (128 ft) monopole near Ontario, San Bernardino County, California. Its registration status is constructed, with construction recorded on Feb 25, 2011. It is registered to T-Mobile West LLC, which holds 1,634 FCC structure registrations.

Overall height
39 m
128 ft
Support structure
39 m
Top above sea level
272 m
Ground elevation
233 m
◆ Loading map…
≥ 150 m60–150 m30–60 m< 30 m
This entry + 6 nearby

Registration record

FCC record

FieldValue
Registration number (ASRN)1277481
Unique system identifier2676909
StatusConstructed (C)
Structure typeMonopole (MTOWER)
Date constructedFeb 25, 2011
Registration issuedSep 12, 2013

Aviation safety

FAA & lighting

FieldValue
FAA study number2010-AWP-5736-OE
FAA circular—
Painting / lighting specNONE
Marking / lighting codeNone (1)

The painting/lighting specification is copied as filed: the FAA marking and lighting chapters and paragraphs cited in the ASR record. The marking/lighting code is decoded using the FCC registration form's code list.

Registered owner

T-Mobile West LLC

Bellevue, WA · FRN 0002837276

Holds 1,634 FCC structure registrations — view the full portfolio →

Location

Address
3292 E. Chino Ave.
City
Ontario
ZIP
91761
County FIPS
06071
Coordinates
34.01147, -117.58092

Within ~40 km

Nearby structures

How tall is structure 1277481 compared with others?

At 39 m, structure 1277481 is about 37% above the 28 m average across the 956 structures registered in San Bernardino County. It is about 21% above the California average of 32 m across 11,860 registrations. Among the 24,638 registrations nationwide filed under the same structure-type code (MTOWER), the average overall height is 42 m, so this one is roughly in line with that figure.

The site's filed ground elevation is 233 m, which puts the top of the structure 272 m above mean sea level.

Where is structure 1277481, and what is registered around it?

The registration places the structure near Ontario in San Bernardino County, California, at coordinates 34.01147, -117.58092, with the site address filed as "3292 E. Chino Ave.". San Bernardino County has 956 FCC-registered antenna structures, the 2nd-largest count among the 58 California counties with registrations, and 580 of them are marked constructed. California as a whole has 11,860 registrations, the 2nd-largest total among the 50 states and DC.

The tallest other registered structure within about 40 km is Claremont, CA · 1012733, a building at 431 m (terminated).

What does the status "Constructed" mean?

Constructed means the owner has notified the FCC that construction is complete, so the registry treats the structure as standing. The FCC issued registration 1277481 on Sep 12, 2013. Nationally, 141,895 of the 197,770 registrations (71.7%) carry the constructed status, including 6,866 in California.

Who owns antenna structure 1277481?

The FCC record lists T-Mobile West LLC of Bellevue, WA as the registered owner, under FCC Registration Number 0002837276. Across the registry it holds 1,634 structure registrations, the 17th-largest portfolio among the 7,865 owners with two or more, including 785 in California. Its most common filed structure-type code is BANT (372 registrations).

What FAA and lighting details are on file?

The registration cites FAA aeronautical study 2010-AWP-5736-OE, the FAA review of the structure's effect on air navigation. Its marking and lighting code, 1, is listed on the FCC registration form as "None".

Frequently asked questions

How tall is antenna structure 1277481?

Its registered overall height above ground is 39 m (128 ft), and 272 m (893 ft) above mean sea level.

Who owns tower 1277481?

The registered owner is T-Mobile West LLC, which holds 1,634 FCC antenna structure registrations.

Where is antenna structure 1277481?

It is located near Ontario, San Bernardino County, California at 3292 E. Chino Ave. (34.01147, -117.58092). Its status is constructed; it was constructed on Feb 25, 2011.

What type of structure is 1277481?

It is filed with the FCC under structure-type code MTOWER, which decodes to "Monopole". Single-shaft steel pole, the standard modern cell-site structure. 24,638 registrations nationwide use the same code.

How many antenna structures are registered in San Bernardino County, CA?

San Bernardino County has 956 FCC-registered antenna structures, 580 of them constructed — the 2nd-largest count among 58 counties in California.

Related pages

Working with towers? Pro adds alerts, change history and CSV export ($39/mo); Enterprise adds full national files, the API and an MCP server for AI tools.

Dataset updated . Source: FCC Antenna Structure Registration 1277481, weekly bulk file.

About this data

Source: FCC Antenna Structure Registration (ASR) database, as published October 13, 2026 — TowerCensus refreshes it weekly. See the methodology for how records are matched, cleaned and scored.

Cite as: TowerCensus, “Antenna structure 1277481, Ontario, San Bernardino County, California”, https://towercensus.com/towers/california/ontario-1277481 (data as of October 13, 2026).