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Is fibre available at my address? How to check and what to watch

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You're thinking of switching to fibre — faster, more stable, lower latency. But before anything else there is one question to answer: is fibre infrastructure available at my address? You can't subscribe to a service that isn't there, and buying a "fibre plan" doesn't always mean fibre reaches your home. This guide covers both how to check and the trap to avoid. (Written for subscribers in Türkiye.)

First, the terms: fibre, VDSL, ADSL

  • ADSL: Old copper telephone line. Slowest, very sensitive to distance from the exchange.
  • VDSL: Still copper, but fibre reaches closer to the cabinet; faster than ADSL.
  • Fibre (FTTH): Glass strands carrying light, reaching all the way to the home. The fastest and most stable. This is what you actually want.

The key distinction: "fibre to the cabinet" is not the same as "fibre to the home" — more on that trap below.

Is fibre at my address? How to check

The ordered path:

  1. Operators' address-check pages. Major providers in Türkiye (Türk Telekom, Turkcell Superonline, TurkNet, Vodafone…) have an "infrastructure/address query" on their sites. You enter your address and it tells you which technology (ADSL/VDSL/fibre) and up to how many Mbps they can offer there. Check several operators separately — one may say "no" while another's own fibre reaches you.
  2. Call support. The website check is sometimes incomplete; the phone gives a clearer answer.
  3. Ask the building/neighbours. If a flat in your building uses fibre, the infrastructure very likely reaches you too.
  4. Remember providers use multiple infrastructures. One operator may use both its own fibre and another network; the answer to "which technology" varies address to address. General notes on providers: internet providers.

The "fibre available" trap: to the building or to the home?

This is the most common misconception. "Fibre" sometimes reaches only the building entrance, then is distributed to your flat over copper (FTTB / fibre-to-the-building). In that case the plan may say "fibre", but the copper in the last stretch limits speed — especially on upper floors. Real performance comes only with fibre to the home (FTTH).

When asking, make it explicit: "Does fibre reach my flat, or only the building?" If the answer is "the building", verify after subscribing whether you actually get the promised speed — by measuring.

You found out — now what?

  • If fibre is available: compare operators on price, contract term and upload speed (upload is lower than download on most plans; why: why upload speed is slower).
  • If fibre isn't available: target the best VDSL plan; it's a real step up from ADSL. Distance to the cabinet sets your speed.
  • If unsure: before subscribing, take a baseline by running the speed test on your current line at different hours — you'll have data to compare whether the new connection is really better.

After subscribing: verify

Once fibre is connected, the job isn't done. Measure whether you actually get the promised speed over a cable, at different hours. If it comes out low — especially in the "fibre to the building" case — that is grounds for a complaint; the step-by-step process is in not getting your advertised speed.

Summary

  1. The first question before switching: is the infrastructure at my address?
  2. Query the address on several operators; support and neighbours confirm too.
  3. The trap: fibre to the building ≠ fibre to the home (FTTH). Clarify it.
  4. Once subscribed, measure over a cable and compare against the promise.