Concentration Risk in Ohio Business Telecom, Why One Carrier Isn’t Enough

If a single fiber cut, a single carrier outage, or a single vendor bankruptcy can take your business off the air, you have a concentration risk problem. Most Ohio mid-market businesses do, and most don’t know it until the first time it costs them money.

This post is about how to spot it, how to price it, and how to fix it without going broke buying redundancy you don’t need.

What is concentration risk, in plain English?

Concentration risk is when too much of something critical to your business runs through too few suppliers, paths, or points of failure. Your bank knows this concept, it’s why FDIC limits exist. Your insurance company knows it, it’s why they reinsure. Your telecom and IT stack almost certainly has it.

Three common patterns in Ohio mid-market businesses:

• Single carrier. Your office runs on one fiber circuit from one provider. When that carrier’s line gets cut on a construction site three blocks away, and this happens regularly, your phones, your VPN, your point-of-sale, your video meetings, all stop.
• Single vendor. One company sold you the phone system, the firewall, the network gear, the WiFi, and the support contract. When they go out of business, get acquired, or just stop caring about your account, you have nowhere to turn.
• Single building. All your servers, your phone PBX, your file storage, and your network core live in one closet. One sprinkler accident or one power surge takes everything down at once.

Why this problem is worse in 2026 than it was five years ago

Three things changed. First, more of your business run on the network, voice, video, payments, security cameras, building access, the works. Five years ago a network outage was annoying; today it’s an operational stop. Second, supply-chain consolidation in the carrier industry has reduced redundancy at the back end, some carriers that look independent actually share fiber paths and even ducts in many Ohio metros. Third, cyber incidents and ransomware events have shifted from rare to routine, and most cyber-insurance underwriting now explicitly asks about single-points-of-failure.

The Ohio-specific picture

Columbus, Cincinnati, Cleveland, Dayton, and Toledo all have multi-carrier markets, in most commercial buildings, you have 3–6 viable carriers. That’s the good news. The bad news: carriers in Ohio share more physical fiber paths than buyers realize. AT&T and Lumen may both serve your building, on the same fiber spine. Spectrum and Altafiber may both have presence in the area, from the same trench. Buying “two carriers” doesn’t guarantee you bought two paths.

The real diversity test is this: ask your carriers for fiber path documentation. If they decline (which they usually do), commission an independent fiber-path audit. We do this for managed clients before recommending a backup carrier, it’s the only way to know whether your “redundant” circuits actually share a single point of failure two blocks from your building.

How to fix it without buying double the bandwidth

You don’t need to double your monthly bill to remove concentration risk. The cheapest meaningful protection is a fixed-wireless or LTE/5G backup link, it costs roughly $50–$150/month, takes a different physical path (over the air rather than through the ground), and switches in automatically with SD-WAN. For most Ohio mid-market offices, this single change cuts annualized downtime by 70–90%.

The next layer up is true carrier diversity, a second wireline carrier with a verified-separate fiber path. This is appropriate for businesses where 30 minutes of downtime causes a meaningful customer-experience hit (call centers, healthcare, financial services, e-commerce). Cost is typically 60–80% of a primary circuit, and it gets used during real outages, not as standby.

The third layer is geographic diversity, moving critical systems (PBX, file storage, backup) to a separate physical facility (cloud or colo). This protects against building-level events, not only network events. Cost varies, but for most mid-market businesses the answer is a cloud-based PBX, off-site backup with a tested restore plan, and a documented failover procedure for the core ERP.

The vendor concentration problem (which is different)

Network concentration is one half of the issue. The other is vendor concentration, relying on a single MSP, telecom advisor, or hardware reseller for the entire stack. We hear from new clients every month who used to be with a regional vendor that got acquired, downsized, or simply stopped responding. Their entire stack sat on one company's shoulders, and they had nothing to push back with when it went sideways.

Buckeye Telecom’s position on this is open: We work with every major carrier in Ohio, we don’t lock you into proprietary phone systems or single-source hardware, and we publish how we’re paid. If you’d rather have two MSPs (one for network, one for IT support, or whatever the split makes sense for your business), we’ll tell you that’s fine and we’ll cover whichever half you’d like us to own.

The 20-minute self-assessment

Print this list. Walk through it with your IT lead or office manager. Each “no” is concentration risk:

• If our primary internet circuit dies at 9 a.m. on a Tuesday, do we have a backup link that automatically takes over within 30 seconds?
• If both internet circuits die (same fiber path), do we have a documented business-continuity plan that gets phones and email back online from another location in under 4 hours?
• If our primary phone system vendor went out of business tomorrow, could we get someone else to maintain it, or are we locked to a proprietary platform?
• If our managed services provider got acquired and the new owner cut our account, do we have a relationship with at least one other capable provider?
• If our building had a fire, flood, or extended power outage, could the business operate the next morning from elsewhere?
• Have we tested any of these scenarios in the last 12 months. Not only talked about them?

If you answered “no” to more than two of these, you have meaningful concentration risk. The good news is that closing the biggest gaps usually costs less than people expect, and the ROI shows up the first time a carrier outage doesn’t take you down.

Where Buckeye Telecom fits

This is the work we do every week. We map your current concentration risks, price the meaningful fixes, and tell you which ones to do this quarter vs. which ones can wait. We don’t sell hardware-driven solutions when a $90/month LTE backup will solve 80% of your problem. And because we’re paid by the carriers and not by you (see our compensation disclosure), recommending the right answer doesn’t cost us anything, it earns us a long-term client.