CurrentBlack builds focused communications products across second numbers, private-number relay, consumer faxing, and business fax infrastructure. Each product is positioned around a clear use case instead of generic telecom claims.
Consumer Apps • Private Number Services • Fax Infrastructure
CurrentBlack develops communications products for consumers and businesses, with a focus on privacy, compliance, and dependable delivery.
CurrentBlack builds communications products around specific jobs: private numbers for everyday privacy, masked-number relay for marketplace conversations, and modern faxing for both consumers and businesses.
The company is intentionally narrow in how it launches. Instead of presenting a generic telecom platform, CurrentBlack groups each product around a concrete use case, a clear audience, and an operating model that can actually be supported. That means consumer apps are designed differently from business infrastructure, and pre-launch products are described with the same boundaries they will need in production.
Today the lineup includes #Phone, our second-number app for users who want a private number for work, dating, signups, and public listings; #fax, our consumer fax app with a public 4.9 average rating and 3,500+ reviews shown on the FaxingApp site; Private Number Proxy, a marketplace relay service now being prepared for launch; and B2B Faxing, our integration layer for companies that need faxing embedded inside larger workflows.
A small portfolio of communications products, each with a distinct audience and operating model.
HashPhone second-number app
#Phone, also known as HashPhone, is our consumer second-number product for calling and texting through a dedicated private number. It is designed for users who want a separate communication identity without exposing their personal number in everyday interactions.
CurrentBlack masked-number relay service
Private Number Proxy is our masked-number relay service for marketplace and listing-based use cases. A user can publish a CurrentBlack number instead of a personal number, and incoming messages can be relayed without exposing the real number. This product is currently waiting on approval and launch readiness.
FaxingApp mobile fax app
#fax is our consumer fax product, powered by FaxingApp, and built for simple mobile-first faxing without the complexity of traditional fax workflows. It is designed for individual users who need reliable fax sending from an app experience.
CurrentBlack fax integrations and infrastructure
CurrentBlack also provides business fax infrastructure for companies that need integrated faxing inside their own systems. This includes backend workflows, routing, delivery handling, and integration support for teams that need fax as part of a larger product or operations stack.
The company is intentionally opinionated about scope, privacy, and how communications products should be launched.
Consumer apps and business communications services built under one product company.
Products are designed to reduce exposure of personal contact details and keep communication flows controlled.
We build both end-user products and infrastructure services depending on the communication workflow.
Products are launched with explicit consent, review, and carrier-policy requirements in mind.
Each product is positioned around a specific communication job instead of broad generic telecom claims.
Talk to a human when you need product guidance, launch planning, or integration help.
CurrentBlack builds communications products across consumer privacy apps, private-number services, and fax infrastructure. If you’re interested in HashPhone, the Private Number Proxy launch, FaxingApp, or B2B faxing, send a short note with what you need.
We’ll reply with straightforward product details, launch status, and the most relevant next step for your use case.