Bookmark this guide, share it with vulnerable individuals (elderly, children, small business owners), and remember: . They simply preserve the digital evidence required to stop repeat harassers.
| Service | Code | Provider | |--------|------|----------| | | *57 | Telstra, Optus, TPG, Aussie Broadband, iiNet (landline & VoIP) | | Cancel Call Trace | #57# | All major providers | | Malicious Call Trace (older systems) | *13 | Defunct; no longer standard. | | Priority Trace (Business plans) | *57# | Some enterprise PBX systems. | Tip for Australia: You must log the trace with Telstra’s Malicious Call Bureau within 7 days. The code alone does not give you the caller ID. India (BSNL, MTNL, Airtel, Jio Fiber Landline) India’s landline nuisance trace code is regulated by DoT (Department of Telecom). The official NTR codes:
Disclaimer: Telecom codes change. Always verify with your specific provider and dial a test call to 611 (customer service) before relying on NTR for an actual emergency. ntr phone codes full
| Service | Code | Notes | |--------|------|-------| | | *57 | Dial immediately after a nuisance call. You will hear a confirmation tone/recording. | | Automatic Nuisance Trace (Some RBOCs) | *77 | Rare; used in limited Bell System areas pre-2000. | | Cancel Nuisance Trace | *87 | Cancels a pending trace request. Not available on all lines. | | Ancillary NTR (Business lines – AT&T) | *67 + 1-800-xxx-xxxx | Not a direct code; requires call forwarding to a trace center. | | CenturyLink NTR | *57 | Same as standard. | | Verizon Landline NTR | *57 | After dialing, follow voice prompts. | | Cox Digital Telephone | *57 | Works on home phone via coax. | Important: After dialing *57 in the US/Canada, you must hang up and then call your provider’s nuisance bureau or local police. The code stores the trace; it does not identify the number to you for privacy reasons. United Kingdom (BT, Sky, TalkTalk, Virgin Media) The UK uses a different system: "Call Trace" service (similar to NTR) with code *57 as well, plus an access code for BT’s Nuisance Call Bureau.
Dial *57 immediately → Write down confirmation tone → Call 100 (police) within 24 hours → BSNL provides caller details to police only. Europe (Germany, France, Spain, Italy – General ETSI Standard) Most of Europe follows ETSI (European Telecommunications Standards Institute) codes for nuisance calls. The most common NTR code is *57 , though some countries use a different prefix. Bookmark this guide, share it with vulnerable individuals
Introduction If you have ever received a harassing, threatening, or obscene phone call, you have likely searched for a way to identify the caller. One of the most effective, yet underutilized, tools provided by telephone companies is the NTR (Nuisance Trace Relay) service. But finding the full list of NTR phone codes across different regions and providers can be confusing.
Dial *57 after a nuisance call → Listen for confirmation → Dial 1477 to generate a trace reference number → Call 101 (police non-emergency) with that number. Australia (Telstra, Optus, TPG, iiNet) Australia uses a service called "Call Trace" (identical to NTR). The code varies slightly by carrier. | | Priority Trace (Business plans) | *57#
| Service | Code | Provider | |--------|------|----------| | | *57 | All BSNL/MTNL landlines (PSTN) | | Call Trace (Airtel landline) | *57 | Works only if caller ID is enabled. | | Cancel Trace | #57# | BSNL | | Police Reporting Code | Dial 100 after *57 | Nationwide |