Mass Response Service GmbH scam & spam call reports

Are all reported Mass Response Service GmbH numbers scams?

No. Two important things to keep in mind:

First, the “Range Holder” on a UK number is the provider Ofcom originally allocated the block to — not necessarily the network running the live call. UK numbers are portable, so a customer originally on Mass Response Service GmbH can have ported away years ago while keeping the same digits. Calls from numbers on this list might not actually be coming through Mass Response Service GmbH’s network today.

Second, a number on the leaderboard above is one that has been reported in the community. Reports are user-submitted and pass moderation (no defamatory accusations, no PII, no duplicates), but they are not the same as a confirmed fraud ruling. Some entries are genuine national contact-centres using Mass Response Service GmbH-allocated CLIs whose unfamiliar number surprised the recipient. Others are active scam campaigns spoofing or originating on Mass Response Service GmbH blocks.

Click any number above for the full per-number report: the Ofcom Range Holder confirmation, the area code (if geographic), the live AI internet check summarising public web reports, and the original community discussion. That combination of signals — not the rank on this leaderboard alone — is what should drive your decision about whether to call back.

No reports filed against Mass Response Service GmbH yet

Nobody has filed a community report on a Mass Response Service GmbH-allocated number so far. That is not a clean bill of health — it usually just means Mass Response Service GmbH’s blocks haven’t crossed a reporter’s path yet, or that calls from them are being recognised and answered normally. When the first report is approved it will appear here automatically, broken down by the community category it was filed under and measured against the ranges Mass Response Service GmbH owns.

In the meantime, the universal red flag on any UK call — whichever Range Holder the number sits in — is pressure to act now: a request to move money, install software, or read back a one-time passcode on a call you didn’t start. See our UK scam-call patterns guide for the full taxonomy, and be the first to log a Mass Response Service GmbH number below.

How to report a Mass Response Service GmbH number

If you’ve received a suspect call from a Mass Response Service GmbH-allocated number, you can:

1. Start a community thread and tag the exact UK number. Once it passes moderation, it’ll appear on this leaderboard automatically.
2. Forward suspect texts to 7726 (free on every UK network). 7726 spells “SPAM” on a phone keypad and routes to Ofcom’s shared spam-reporting hub.
3. Report fraud to Action Fraud on 0300 123 2040 (or 101 Police Scotland). For the full reporting flow see our report a UK scam call guide.