SIP.IO
Start free

Report Abuse

Version 2026-11-06 · Effective 2026-11-06

1. Who this page is for

Use this page if you have received an unwanted call or message that appears to come from a sip.io number, or if you see attacks or other misuse from our network. Our customers must follow our Acceptable Use Policy, Voice Policy and Messaging Policy; reports from the public help us enforce them.

If you are in immediate danger, contact your local emergency services first.

2. What you can report

  • Robocalls and unwanted telemarketing, including prerecorded or AI-voice calls made without consent.
  • Spam text messages (SMS/MMS) or unsolicited WhatsApp messages.
  • Fraud and scams, including impersonation of banks, government agencies or delivery companies, and caller ID spoofing.
  • Phishing by voice (“vishing”) or text (“smishing”).
  • Harassment, threats or abusive calls.
  • Network attacks from our IP space, such as SIP scanning, brute-force registration attempts, toll-fraud attempts, or denial-of-service traffic.
  • Illegal content transmitted using our Services.
  • Copyright or trademark infringement. Please use the procedure on our Trademark and DMCA page.
  • Security vulnerabilities in our own Services. Please see our Security Overview.

3. How to report

Email abuse@sip.io. One report per incident or campaign helps us act quickly. If you are reporting many calls from the same source, a single report with a list is best.

4. What to include

The more detail you provide, the faster we can find the source. Please include whatever you have of the following.

For calls:

  • the phone number that called you (the caller ID shown);
  • the phone number that received the call;
  • the date and time of the call, including your time zone;
  • the call duration, and whether it was answered;
  • what was said or played, including any company name, callback number or website mentioned;
  • a recording or voicemail, if you have one and recording it was lawful.

For messages:

  • the sending number or sender ID;
  • the receiving number;
  • the date and time, including your time zone;
  • the full text of the message, including any links (please do not click suspicious links);
  • a screenshot.

For network attacks:

  • the source IP addresses and ports;
  • destination IPs and ports;
  • timestamps with time zone (UTC preferred);
  • relevant log extracts, such as SIP headers (including User-Agent, From, To and Call-ID), firewall logs or packet captures.

In all cases: your name and a way to contact you, if you want a follow-up. You may report anonymously, but we will then be unable to contact you with questions.

Please do not send us payment card numbers, passwords or other sensitive information.

5. Traceback requests

We participate in industry efforts to trace and stop illegal robocalls. We respond to traceback requests from the USTelecom Industry Traceback Group and similar industry bodies and regulators, identifying the upstream provider or the customer that originated the traffic, within the timelines required by applicable rules. Carriers and traceback bodies can send traceback requests to abuse@sip.io or through the Traceback Group’s portal.

6. What happens next

  1. Acknowledgement. We acknowledge reports that include contact details, normally within two business days.
  2. Investigation. We check whether the number or IP address is on our network. Numbers can be spoofed, and a number shown as the caller ID may not be the true origin; we use call records and signalling data to find where traffic actually came from.
  3. Action. If we find a violation, we may warn the customer, require them to fix the problem, block specific numbers or traffic, suspend the number or account, or terminate service, as set out in our Terms of Service and Acceptable Use Policy. Where traffic reached us from another carrier, we pursue it with that carrier.
  4. Closure. For privacy reasons we usually cannot tell you exactly what action we took, but we may confirm that the report has been handled.

Submitting a report does not guarantee any particular outcome, and we decide on enforcement at our discretion.

7. Customer identity

We cannot share the identity or contact details of our customers, or their communications records, with members of the public. We disclose customer information only in response to valid legal process or in an emergency, as described in our Law Enforcement Guide. If you intend to take legal action, your lawyer or the relevant authority can obtain the information through legal process.

8. Other ways to report

You may also report unwanted calls and messages to your regulator or consumer authority, for example:

  • in the United States, the Federal Trade Commission or the Federal Communications Commission;
  • in Canada, the National Do Not Call List operator or the Spam Reporting Centre;
  • in the United Kingdom, Ofcom or the Information Commissioner’s Office;
  • in the European Union, your national telecoms regulator or data protection authority;
  • in Israel, the Ministry of Communications or the Privacy Protection Authority.

Many mobile carriers also let you forward spam texts free of charge (for example to 7726 in the United States and the United Kingdom).

9. Misuse of this process

Please do not submit false or malicious reports. We may disregard reports that appear to be made in bad faith.