There's No Universal Answer — Here's What I Now Do Instead

When I first started negotiating tower leases back in 2017, I assumed the lowest rent was automatically the best deal. Three years and roughly forty site evaluations later, I learned that low rates often hide bigger problems — structural limitations, restrictive clauses, and a landlord who's stretched too thin to maintain the asset.

The truth about American Tower (and any infrastructure REIT) is that your evaluation criteria should depend entirely on your role. Are you a wireless carrier adding equipment? An enterprise tenant looking for edge data center capacity? Or a financial decision-maker trying to understand whether the company's 2025 AFFO multiple is sustainable? These scenarios demand different checklists.

Let me walk you through each one — including the mistakes I've personally made, so you don't repeat them.

Scenario A: You're a Carrier Renting Tower Space or Adding Equipment

Here's the classic trap: a lease quote comes in 12% below market, and it feels like a win. In 2019, I nearly signed a deal for space on a well-known building — the Great American Tower in Cincinnati, Ohio. The rate was exceptional. The contract?

Buried in Appendix C was a lease clause that prohibited adding any secondary antennas after installation, and the structural review fee was my responsibility — a $4,200 surprise that showed up later. That mistake cost me $890 in rework plus a one-week delay. What I mean is: the cheap rent wasn't cheap at all.

What I should have checked first:

  • Long-term contract terms: Are there annual escalators tied to CPI or a fixed percentage? USPS, for example, adjusts stamp prices on a predictable schedule; professional tower leases have similar mechanisms. Read them carefully.
  • Collocation and exclusivity: Can you add more equipment later, or does the lease give you only specific antenna space? Exclusivity locks in your flexibility.
  • Structural loading: Will the tower support your current and future equipment? One missed calculation can turn a five-year plan into a costly relocation project.

Why the AFFO multiple matters here: American Tower's adjusted funds from operations (AFFO) reflects its ability to fund maintenance capex without taking on excessive debt. A healthy AFFO multiple — for 2025, I'm watching how it trends relative to interest rates — tells you the landlord has the financial capacity to keep the tower safe and up to code. It's not a guarantee, but it's a signal. If you're placing equipment, you want a partner who won't defer maintenance to save money.

How to know you're in this scenario: You are renting physical space on a tower or roof to deploy wireless equipment. If that's you, skip the data center talk below and start scrutinizing the lease appendix.

Scenario B: You're an Enterprise Tenant Evaluating Edge Data Centers

American Tower's acquisition of CoreSite changed the game — they're now a serious player in edge data centers. When I first evaluated one of their facilities for a client, I fell for the shiny marketing materials. They had everything: beautiful diagrams, high-end cooling specs, and a vendor rep who kept using the word "platinum." It felt like comparing blood pressure monitors — you see a "platinum" edition and assume it must be better. But I've learned that a platinum blood pressure monitor doesn't diagnose heart disease, and a fancy facility brochure doesn't replace a real SLA review.

What actually matters for enterprise tenants:

  • Connectivity options: How many carriers meet inside the building? One or two means limited redundancy, no matter how new the UPS looks.
  • True availability commitments: American Tower won't promise 100% uptime (and anyone who does is lying). Look for a 99.9% or 99.99% SLA with defined credits — and check what equipment is actually backed up.
  • Expansion path: Can you grow from a single cabinet to a dedicated cage without moving to a different facility? That flexibility saved us when a customer tripled their workload mid-contract.

I don't have hard data on every CoreSite facility, but based on some painful contract negotiations, my sense is the AFFO multiple matters less for you here than for carriers — what matters is the local team's responsiveness and the legal wording of the SLA. Ensure claims are substantiated, as FTC guidelines require for any advertised guarantee. Ask for written evidence of past power events and how they were handled.

How to know you're in this scenario: You are buying compute, storage, or colocation space. Focus on uptime definitions and connectivity — not the landlord's financial metrics alone.

Scenario C: You're an Investor or Financial Analyst Watching the 2025 AFFO Multiple

Five years ago, most people in this industry used FFO (Funds From Operations) as their primary REIT metric. But the fundamentals have changed. In 2025, if you're evaluating American Tower as an investment or as a long-term counterparty, the AFFO multiple is the number to understand.

AFFO subtracts recurring maintenance capex and straight-line rent adjustments from FFO, giving a clearer picture of distributable cash flow. A high multiple isn't automatically good or bad — it reflects growth expectations and the market's confidence in that growth. What matters is the trend, not the static number.

So what should you look at around the AFFO multiple?

  • Net debt to EBITDA: A rising multiple paired with rising leverage is a red flag. A falling multiple with stable cash flow is often overlooked opportunity. I wish I'd tracked this more carefully in my own portfolio.
  • Interest rate sensitivity: REITs with heavy debt loads feel the pain when rates stay high. Look at what percentage of American Tower's debt is fixed vs. floating.
  • Asset composition: Domestic towers, international sites, and edge data centers have different cash flow profiles. A "good" AFFO multiple is useless if you don't know which segments drive it.

This is where the industry is evolving: old approaches that just compared FFO multiples across REITs are outdated. The more accurate approach—like using a properly crimped C210 connector instead of a twisted wire—requires the right tool for the job. Most people don't know how to crimp connectors correctly, and the same goes for financial metrics: using the wrong one can lead to a disconnected analysis. That's why adding AFFO to your toolkit is non-negotiable for 2025.

How to know you're in this scenario: You own (or plan to own) American Tower shares, bonds, or any position sensitive to its dividend coverage. If so, the AFFO multiple is your bird's-eye view.

Which Scenario Are You Really In? A Quick Decision Guide

Still not sure? Here's the three-question test I use with my team:

  1. If you put radio equipment on a structure → Scenario A. Start with a structural engineer, not the finance team.
  2. If you put servers in a leased room → Scenario B. Ask for evidence of power uptime, not marketing slides.
  3. If you hold paper about the business → Scenario C. Read the quarterly filings and calculate the AFFO multiple yourself.

One thing I still kick myself for is that first lease in Cincinnati. If I'd taken the time to understand the financial health of the landlord and the true terms, I would have saved eighteen thousand dollars over three years. So glad I eventually built a checklist — it's caught 47 potential errors in the past 18 months alone. The fundamentals haven't changed: do your homework, ask hard questions, and never assume the shiny word "platinum" means the underlying asset is solid.

Whatever scene you find yourself in, keep this in mind: the right metric, like the right connector, makes the connection solid. The wrong one, no matter how expensive, eventually fails.

Technical planning note: validate insertion loss dB, PIM dBc, grounding resistance, and relevant 3GPP TS 38.xxx requirements before final RAN acceptance.