TowerCensus

Monopole 1285777 — Ontario, CA

Dismantled

FCC Antenna Structure Registration 1285777 — monopole near Ontario, California. Single-shaft steel pole, the standard modern cell-site structure.

At a glance

FCC Antenna Structure Registration 1285777 is a 19 m (62 ft) monopole near Ontario, San Bernardino County, California. Its registration status is dismantled, with construction recorded on Dec 9, 2013, and the FCC record shows it dismantled on Jul 23, 2018. It is registered to UNION PACIFIC RAILROAD, which holds 1,115 FCC structure registrations.

Overall height
19 m
62 ft
Support structure
19 m
Top above sea level
312 m
Ground elevation
293 m
◆ Loading map…
≥ 150 m60–150 m30–60 m< 30 m
This entry + 6 nearby

Registration record

FCC record

FieldValue
Registration number (ASRN)1285777
Unique system identifier2685205
StatusDismantled (I)
Structure typeMonopole (MTOWER)
Date constructedDec 9, 2013
Registration issuedJul 25, 2018
Date dismantledJul 23, 2018

Aviation safety

FAA & lighting

FieldValue
FAA study number2012-AWP-6457-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

UNION PACIFIC RAILROAD

Omaha, NE · FRN 0001539048

Holds 1,115 FCC structure registrations — view the full portfolio →

Location

Address
600ft SE of E Guasti Rd and E Convention Center Way.
City
Ontario
ZIP
91761
County FIPS
06071
Coordinates
34.06308, -117.60358

Within ~40 km

Nearby structures

How tall is structure 1285777 compared with others?

At 19 m, structure 1285777 is about 33% below the 28 m average across the 957 structures registered in San Bernardino County. It is about 41% below the California average of 32 m across 11,862 registrations. Among the 24,665 registrations nationwide filed under the same structure-type code (MTOWER), the average overall height is 42 m, so this one is about half of that figure.

The site's filed ground elevation is 293 m, which puts the top of the structure 312 m above mean sea level.

Where is structure 1285777, and what is registered around it?

The registration places the structure near Ontario in San Bernardino County, California, at coordinates 34.06308, -117.60358, with the site address filed as "600ft SE of E Guasti Rd and E Convention Center Way.". San Bernardino County has 957 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 11,862 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 "Dismantled" mean?

Dismantled means the owner has notified the FCC that the structure was taken down. The FCC issued registration 1285777 on Jul 25, 2018. Nationally, 12,705 of the 197,833 registrations (6.4%) carry the dismantled status, including 961 in California.

Who owns antenna structure 1285777?

The FCC record lists UNION PACIFIC RAILROAD of Omaha, NE as the registered owner, under FCC Registration Number 0001539048. Across the registry it holds 1,115 structure registrations, the 24th-largest portfolio among the 7,865 owners with two or more, including 162 in California. Its most common filed structure-type code is MTOWER (411 registrations).

What FAA and lighting details are on file?

The registration cites FAA aeronautical study 2012-AWP-6457-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 1285777?

Its registered overall height above ground is 19 m (62 ft), and 312 m (1,024 ft) above mean sea level.

Who owns tower 1285777?

The registered owner is UNION PACIFIC RAILROAD, which holds 1,115 FCC antenna structure registrations.

Where is antenna structure 1285777?

It is located near Ontario, San Bernardino County, California at 600ft SE of E Guasti Rd and E Convention Center Way. (34.06308, -117.60358). Its status is dismantled; it was constructed on Dec 9, 2013.

What type of structure is 1285777?

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. 24,665 registrations nationwide use the same code.

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

San Bernardino County has 957 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 1285777, weekly bulk file.

About this data

Source: FCC Antenna Structure Registration (ASR) database, as published October 20, 2026 — TowerCensus refreshes it weekly. See the methodology for how records are matched, cleaned and scored.

Cite as: TowerCensus, “Antenna structure 1285777, Ontario, San Bernardino County, California”, https://towercensus.com/towers/california/ontario-1285777 (data as of October 20, 2026).