Guides
How carriers label calls as spam, how to get a label removed, and how to read your results.
- Free Caller Registry: what it does, what it doesn't, and how to register
The Free Caller Registry is a free form that sends your business numbers to Hiya, First Orion and TNS, the analytics companies behind AT&T, T-Mobile and Verizon. Here's how to use it and what to expect. - How to check a new phone number before using it in a dialer
A brand-new number can already show as spam. Before you put one in a dialer, check what it displays, confirm your setup, register it, and start with steady, expected calls. A step-by-step pre-flight checklist. - How to remove a spam label on AT&T (Spam Risk / Fraud Risk)
AT&T's spam labels come from Hiya. To get one removed, fix the cause, register your number, and request a free review from Hiya. Step-by-step, with what to expect. - How to remove a spam label on Verizon (Potential Spam / Potential Fraud)
If Verizon customers see your calls as Potential Spam, submit Verizon's free voice spam feedback form and register your number. Step-by-step, with what to expect. - How to remove Scam Likely on T-Mobile
If T-Mobile customers see your calls as Scam Likely, register free with First Orion and report the mislabel to T-Mobile. Step-by-step, with what to expect. - SIP 603+ and 608 explained: what "Network Blocked" means for your calls
A SIP 603+ ("Network Blocked") response means a carrier blocked your call based on analytics. Since March 25, 2026 it replaces 608 for this purpose in the US. Here's how to read it and what to do. - Spam label checkers vs. reputation management: which do you need?
An honest comparison of free spam lookup tools, reputation management services, analytics-company portals, DIY test calls, and Spam I Am, including when each is the better choice. - Spam label glossary: Spam Risk, STIR/SHAKEN, CNAM, SIP 603+ and more
Plain-language definitions of the terms behind spam call labels: carrier labels, analytics engines, caller ID authentication, blocking codes, registration and the rules that govern them. - Why does my number show as Spam Likely? (And how to fix it)
Your calls show as Spam Likely because a call-analytics company working for the recipient's carrier scored them as probably unwanted. Here's what drives that score and what to do.
Who it's for
- Agencies calling for clients: checking and fixing spam labels
For small agencies, call centers and lead-gen teams that call on behalf of clients: how to check client numbers for spam labels, and who can register and request reviews. - Home services: are your callbacks showing as spam?
Plumbers, HVAC, roofers and other home service businesses: why quote callbacks and appointment calls show as Spam Risk or Scam Likely, and how to check and fix it. - Real estate agents: is your number showing as spam?
Why real estate agents' calls show as Spam Risk or Scam Likely, how to check what leads actually see, and how to fix it, including Do Not Call basics for expired and FSBO calls. - Recruiters: are candidates seeing your calls as spam?
Why recruiters' calls show as Spam Risk or Scam Likely to candidates, how to check what candidates see, and how to fix it. - Spam label checks for AI voice and sales agents
Calls from AI voice agents can show as Spam Risk without any error in your logs. Add a pre-flight and scheduled check to your pipeline to see what recipients actually see.
More
- Carrier coverage
Spam I Am checks your number on AT&T, Verizon and T-Mobile using real Android phones on each network. Here's what a check covers and what it doesn't. - How to read your result
What your Spam I Am result means for each carrier (the label, the caller name and the screenshot) and exactly what to do next for each outcome. - Pricing
The first check on any number is free. After that, add funds from $10 and pay $0.25 to check one carrier, or $0.40 to check two or three. Funds never expire, and you're only charged when a result is returned.