American Tower Corporation 401(k) Plan: Login, Facts & Contact Information

American Tower Corporation 401(k) Plan Facts

Plan name
AMERICAN TOWER RETIREMENT SAVINGS PLAN
Plan type
401(k) with employer contributions and profit sharing
Plan sponsor
AMERICAN TOWER CORPORATION
Participants
2,746 (2,436 active employees)
Former employees with a balance
1,059
Plan assets
$522,798,765 at Dec 31, 2024
Average account balance
$156,386 across 3,343 accounts
Employer contributions
$11,613,008 in plan year 2024 (31% of all contributions)
Recordkeeper
Fidelity Investments Institutional
Plan year
Jan 1, 2024 – Dec 31, 2024
Plan established
Jul 1, 1998
Employer contributions Automatic enrollment Default investment for undecided participants Participants choose their own investments Self-directed brokerage window Profit sharing Company stock (ESOP)

Source: Form 5500 for plan year 2024 (Jan 1, 2024 – Dec 31, 2024), filed Sep 16, 2025. Public filing with the U.S. Department of Labor.

Money in and out in plan year 2024

  • $37.6 million went into the plan in contributions, $11.6 million of it from the employer (31%).
  • $29.1 million was paid out to participants.
  • Investment and other income added $76.7 million.
  • Administrative expenses were $172,860, about $52 per account.

How the American Tower Corporation 401(k) changed, 20192024

Plan yearParticipantsPlan assetsEmployer contributionsBenefits paid
20192,531$239.8 million$6.90 million$13.8 million
20202,476$307.3 million$7.39 million$16.1 million
20212,505$359.3 million$7.89 million$27.5 million
20222,673$301.4 million$8.63 million$16.2 million
20232,838$376.0 million$9.11 million$22.9 million
20242,746$522.8 million$11.6 million$29.1 million

American Tower Corporation 401(k) Contact Information

Phone
617-375-7500
Mailing address
116 HUNTINGTON AVENUE, 11TH FLOOR, BOSTON MA 02116
Plan sponsor
AMERICAN TOWER CORPORATION
Employer identification number (EIN)
65-0723837
Plan number
001

Questions about the American Tower Corporation 401(k)

Does American Tower Corporation contribute to the 401(k)?

Yes. The plan reports an employer contribution arrangement. In plan year 2024 the employer contributed $11.6 million, 31% of all contributions.

Does the American Tower Corporation 401(k) have automatic enrollment?

Yes. The plan reports automatic enrollment of eligible employees.

How many people are in the American Tower Corporation 401(k) plan?

2,746 participants at the start of plan year 2024, 2,436 of them active employees, and 1,059 former employees who still had money in the plan.

What is the average 401(k) balance at American Tower Corporation?

About $156,386 per account: $522.8 million in plan assets across 3,343 accounts with a balance at the end of plan year 2024.

Who manages the American Tower Corporation 401(k) accounts?

Fidelity NetBenefits (listed on the filing as FIDELITY INVESTMENTS INSTITUTIONAL) is the plan's recordkeeper, which is where participants log in to see their balance.

I no longer work at American Tower Corporation. How do I access my 401(k)?

Your account stays with Fidelity NetBenefits after you leave, so you can log in with the same credentials. If your balance was small, the plan may have rolled it into an IRA in your name. If you can't find it, Beagle can locate it for you.

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