Callzo
Every time I land at an international airport, first thing I want to do is call home. Just to say I'm here, I'm safe. But my family isn't always online on WhatsApp. And calling normally from a foreign SIM costs a lot for an international number. I built Callzo for that. Nothing like rocket science or latest AI buzz. Open a browser, call any number, done. Tried it on my Japan trip. Called home when I landed. On the way back, a friend wanted me to check iPhone prices at the airport — called him through Callzo while I had Japan's internet running. Whole trip, I didn't even use 10 minutes.…
Callzo launched on March 5, 2026 with 6 votes, #1,631 of 23,380 launches that month and more than 75% of that year's launches.
What it does
Get a personal US/Canada phone number + 10 minutes. Make real phone calls from your browser anywhere in the world. No roaming, no SIM, no contracts. Perfect for travelers, students & digital nomads. Callzo isn't a replacement for your SIM or eSIM. It's the safety net for when those fail. Browser-based, real US number, instant activation, no hardware, works in 40+ countries.
Get a dedicated USA number and start calling your US and Canada leads in under 30 seconds. Built-in CRM, unlimited inbound SMS, CSV lead import, and clear pricing. No shared number pools, no spam labels. Built for solo freelancers.
Get a USA number and use it to approach clients abroad in the US or Canada. A real number assigned only to you — not a shared pool that gets flagged as spam. Call out to prospects and take incoming calls on the same number, right from your browser. Prospects can text you back. Never miss a reply because it landed in a different app. Add notes to contacts and track your pipeline without buying a separate CRM tool. Upload your lead list and they instantly become contacts. Just import and call. Every call is logged automatically with duration, direction, and timestamp. No approvals, no hardware, no setup calls. Sign up with your email and you're calling immediately. You pay for your number and…from callzo.io
In the maker’s words, at launch
Roast it as much as you can!
Does a similar job
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ZippCall2025 · zippcall.com · ▲136You may have heard Microsoft is closing down Skype in a month: https://news.ycombinator.com/item?id=43202052#43202881 As someone originally from the UK who spends a significant amount of time in Morocco, I constantly faced the challenge of making affordable and straightforward calls back home, especially to essential services like my bank or credit card company - Skype always made it easier for me with their outgoing to calls to a regular phone number. I used Skype 2/3 times a week. When I heard they were closing down, and saw a post by @levelsio on X, I put my head to…
I built an international calling platform for the past 6 monthsJan 2026 · voklit.com · ▲38I built Voklit because I was tired of paying $2+/min to call banks and airlines overseas. Needed a US number that works anywhere with actual affordable rates. It's a web-based VoIP service (mobile apps coming soon). You get a real US phone number, pay-as-you-go minutes on top of a small subscription that covers the infrastructure. Bootstrapped, solo founder. Built with [Go/Next.js/ and Websockets] if anyone's curious about the stack. Adding more countries soon. Happy to answer questions or hear feedback.
CalltuvDec 2025 · calltuv.com · ▲20Make low-cost international calls from United States to 200+ countries. Call landlines and mobiles from your browser with crystal-clear quality and no hidden fees.
StartACallNov 2025 · startacall.com · ▲11Make international calls from browser | cheap calling online
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