Germany switched off 6,200 phone numbers last year. Your report is how.

One clarification before the doors, because it decides which door you need: what kind of number just called you?

Your report is a kill switch, not a complaint

Here's the fact that changes how the whole chore feels. In 2025, the Bundesnetzagentur — Germany's Federal Network Agency, the regulator that owns the country's phone-number space — received 85,158 complaints about number misuse. It didn't file them. Based on those reports, it switched off around 6,200 phone numbers, network-wide, and imposed billing-and-collection bans covering more than 2,000 numbers — meaning the operators behind premium-number tricks were legally barred from collecting the money the scheme existed to generate. Unauthorized telemarketing on top carries fines of up to €300,000 under the UWG, Germany's unfair-competition law.

Do the arithmetic from the scammer's side of the table. A working number — one that dials out at volume without being blocked — is operating infrastructure. Every switched-off number is replacement cost, burned routing, dead campaigns mid-flight. A country where thirteen reports, statistically, retire a number is a country where the phone channel gets expensive. That is what your five-minute form actually does: it isn't a gesture, it's a line item in someone's losses.

First, one question: is the number the business — or a mask?

Every unwanted call falls on one side of this line, and the line decides where your report has power.

Germany: the Bundesnetzagentur's doors

The regulator keeps one complaint hub — the Ärger mit Rufnummern und Anrufen page at bundesnetzagentur.de — with a separate short form for each situation. The four you're most likely to need:

Two German quirks worth knowing. First, 7726 — the international forward-a-spam-text shortcode — is not the official channel here: Deutsche Telekom supports it and asks its customers to use it, but support varies by carrier, and the Bundesnetzagentur's own SMS-spam guidance routes you to its web form instead. Use 7726 as a bonus if you're on Telekom; use the form to reach the regulator. Second, since 1 December 2022, German law (§120 Abs. 4 TKG) requires networks to suppress the caller-ID of calls handed over from foreign networks that display a German number — such calls arrive as "unknown" instead, with an exemption for genuine mobile roaming. That's why the foreign call center wearing a Düsseldorf office number as a costume got rarer — and why a call that still does display a trustworthy German number deserves no trust on that basis alone. The display is an assertion, never a fact. The police, for one, never call out from 110 — and as polizei-beratung.de puts it about shock calls: hang up immediately, and call 110 yourself.

Austria: the RTR's Meldestelle — and its honest fine print

Austria concentrates everything in one place: the RTR's Meldestelle für Rufnummernmissbrauch at rufnummernmissbrauch.at. One form covers harassing calls, scam SMS, misuse of your own number as a spoofed sender — and, since autumn 2025, scam WhatsApp messages too. In 2025 the Meldestelle logged 31,888 reports, up 5% on the year before; more than 10,200 of them were about scam SMS.

What happens next is a different machine from Germany's, and the RTR is admirably straight about it. Reports primarily feed a public warning system — the RTR publishes the suspicious numbers people are reporting, which is the list every other Austrian can check. Against ping-call numbers it can take direct countermeasures, including free warning announcements played before a call to certain numbers connects, and outright number blocks. Case material goes onward to prosecutors and administrative-penalty authorities. And the fine print, in the RTR's own telling: because scammers spoof numbers, your report doesn't guarantee your particular harassment ends. That honesty is worth more than a false promise — it tells you what the report is for. You're not filing to fix your own phone; you're feeding the warning system, the same way the person who reported the number you just looked up fed it for you.

When the regulator is the wrong door

The three habits that keep your number cheap

A last piece of adversary logic. Scam operations price phone numbers by responsiveness — a number that answers, calls back, or presses keys is worth more on the lists they trade than one that doesn't react. Three habits keep yours cheap: never call an unknown one-ring number back (that's the entire ping-call business model); never press a key a robocall asks you to press, not even "to be removed from the list" — it's a liveness probe; and don't argue with telemarketers — a two-minute indignant conversation marks the number as engaged and human. Hang up, file the form, block the number. Quiet is the punishment that scales.