Nomorobo

What Nomorobo does

Nomorobo (legally Telephone Science Corp dba Nomorobo) is a privately held U.S. software company that provides AI-powered real-time blocking of illegal robocalls, scam calls, and spam/smishing texts. Founded in 2013 by Aaron Foss after winning the FTC Robocall Challenge, the company operates from Mount Sinai, New York, and is organized as a self-funded, bootstrapped business with 11-50 employees. Its core technology combines an audio-pattern anomaly-detection engine with a proprietary database of more than 10.5 million known robocallers and an SMS classification pipeline, protected in part by US Patent #9,288,319; the platform has cumulatively blocked over 4.1 billion robocalls since launch. The consumer product line is tiered — Nomorobo Basic ($2.99/month or $19.99/year, all carriers), Nomorobo Max ($59.99/year, T-Mobile/Verizon/AT&T, with call screening and voicemail transcription), Nomorobo Family ($79.99/year, up to 4 devices) — alongside a standalone one-time $9.99 Spam Text Blocker app. Distribution combines direct app-store downloads (iOS, Google Play) with carrier integrations at all three major U.S. wireless networks, an AARP member partnership for the older-adult segment, and earned media coverage across ABC, NBC, CNN, Fox Business, USA Today, WSJ, and Wired.

On the B2B side, Nomorobo monetizes its data asset through a public API, real-time CSV data feeds updated every 20 minutes, bulk licensing, white-label solutions, fraud-protection services, and number remediation for carriers, telecom operators, and businesses. SOC 2 Type II certification (2026) and CCPA compliance position the platform for regulated enterprise procurement. The company's go-to-market is hybrid: product-led growth via app stores (with free trials) for consumers, paired with channel sales through carriers and AARP, and an API-first motion targeting telecom and call-analytics customers. Customer base spans approximately 2 million Americans (3.5 million per some sources), a 4.5+ App Store rating across 15,194 reviews, and named technology integration partners including 1-VoIP, Burner, CallRail, and CallTrackingMetrics.

Name

Nomorobo

Legal name

Telephone Science Corp dba Nomorobo

Website

https://nomorobo.com

Company type

Private

Founded year

2013

Operating status

Operating

Headcount range

11–50 employees

Short description

Nomorobo is a US-based AI-powered platform that blocks robocalls, scam calls, and spam texts in real time for consumers, plus licenses its robocaller database and blocking technology to carriers, telecom operators, and businesses via API and white-label offerings.

Ownership category

akta.pro rank

Product category

Robocall and Spam Text Blocking Software

NAICS

Software Publishers (5132)

akta.pro primary industry

Bot Management & Mitigation (HDADALAB)

Keywords

• Spam call blocking
• Robocall prevention software
• Caller reputation data
• Fraud protection services
• SMS phishing defense

Headquarters

HQ city

Mount Sinai

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Software

Cost components

Technology or R&D, Personnel, Infrastructure, Marketing or Sales, Operations, Others

Revenue model

1. Consumer Subscription - Nomorobo Basic: Monthly or annual subscription providing block/identify spammers, privacy protection without accessing call logs, and phishing/spam text protection. Works on all carriers.
2. Consumer Subscription - Nomorobo Max: Premium annual subscription with 100% protection from all robocalls, real-time protection from 11M+ robocallers, call screening, live voicemail transcription, personalized block/allow lists, and neighbor spoofing protection. Available on T-Mobile, Verizon, and AT&T.
3. Consumer Subscription - Nomorobo Family: Family plan annual subscription covering up to 4 devices with all Nomorobo Max protections including phishing and spam text filtering.
4. One-time App Purchase - Spam Text Blocker: One-time purchase of $9.99 for standalone spam text blocking app with no subscription required.
5. B2B API and Data Licensing: Enterprise API access for carriers and businesses providing spam scores, blacklist status, and caller reputation information. Licensed under Creative Commons or commercial terms.
6. Bulk Licensing - Enterprise: Enterprise bulk licensing for business call and text analytics solutions, fraud protection, and number remediation services.
7. White Label Partnership: White-label solutions for carriers and telecommunication companies to integrate Nomorobo's technology into their own platforms.

Pricing tiers

Go-to-market motion4 records

Distribution channels7 records

Marketing channels6 records

Core offering

Nomorobo provides AI-powered real-time blocking of spam calls, scam calls, and fraudulent text messages through consumer mobile apps (Basic, Max, Family plans) and a standalone Spam Text Blocker app. For enterprises, it offers robocaller database access via API, bulk licensing, white-label solutions, fraud protection, and number remediation services to carriers and telecom companies. Its technology relies on a proprietary database of over 10.5 million known robocallers and real-time call/text analysis.

Product overview

Nomorobo is a spam call and text blocking platform operated by Telephone Science Corp. The consumer product lineup includes three tiers: Nomorobo Basic (entry-level call/text blocking at $2.99/month), Nomorobo Max (premium 100% robocall protection at $59.99/year with advanced screening and voicemail transcription), and Nomorobo Family (multi-device coverage up to 4 devices at $79.99/year). A standalone Spam Text Blocker app is available as a one-time $9.99 purchase. For businesses, Nomorobo offers Bulk Licensing, White Label solutions, API access, Fraud Protection, and Number Remediation services. The platform leverages AI-powered real-time blocking technology to protect against robocalls, scam calls, and phishing texts across mobile and landline phones.

Differentiator

Problem solved

Functional benefit

Brands

• Nomorobo Max: Premium robocall blocking service providing 100% protection from all robocalls with call screening, live voicemail transcription, and spam text filtering for $59.99/year.
• Nomorobo Family
• Nomorobo Basic
• Spam Text Blocker App

Products and services

• Nomorobo Basic Entry-level consumer subscription app for iPhone and Android that blocks or identifies spam callers (user's choice), protects privacy without accessing call logs, and filters phishing and spam texts. Works on all carriers at $2.99/month or $19.99/year.
• Nomorobo Max Premium annual subscription ($59.99/year) that claims 100% robocall protection using real-time blocking against 11M+ known robocallers, advanced call screening, live voicemail transcription, personalized block/allow lists, neighbor spoofing protection, and spam text filtering. Available on T-Mobile, Verizon, and AT&T.
• Nomorobo Family Annual subscription ($79.99/year) providing Nomorobo Max-level protection (call blocking, call screening, voicemail transcription, spam text filtering) across up to 4 devices for family coverage.
• Spam Text Blocker App Standalone iPhone and Android app ($9.99 one-time purchase, no subscription) that automatically filters spam SMS/MMS, smishing, fake delivery texts, bank impersonation messages, and promotional spam.
• Nomorobo API Public API providing carriers and businesses access to spam scores, blacklist status, caller reputation information, and real-time CSV data feeds of active IRS scam phone numbers (updated every 20 minutes).
• Bulk Licensing Enterprise bulk licensing solution enabling businesses to provide Nomorobo's call and text analytics and robocall protection to multiple users or customers under a unified license.
• White Label White-label solution allowing carriers and telecom companies to rebrand and integrate Nomorobo's fraud protection and robocall blocking technology into their own customer-facing platforms.
• Fraud Protection Business-oriented fraud protection solution using Nomorobo's call and text analytics to protect enterprise customers, employees, and brand reputation from phone-based scams.
• Number Remediation Enterprise service that identifies fraudulent or misused phone numbers and remediates them, helping carriers and telecom operators clean up compromised number inventories.

Quantifiable outcome

• Over 4.1 billion robocalls blocked since 2013
• +3 more outcomes

Named customers5 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration8 records

AI capability4 records

Feature8 records

Partnerships

Four partnerships are on record, tiered core.

• AARPcoreGTM or Marketing Partner · 6 May 2026Nomorobo and AARP collaboration announced May 6, 2026 to provide call-and-text blocking protection services to AARP members at discounted subscription rates. Partnership addresses rising phone and text-based fraud with FTC data indicating consumers may have lost up to $196 billion in 2024, including $81.5 billion stolen from older adults. Nomorobo's real-time blocking technology offered exclusively to AARP members as part of fraud prevention initiative.
• T-MobilecoreChannel Partner/ Reseller/ DistributorT-Mobile is a carrier partner where Nomorobo Max is available. Provides distribution channel for Nomorobo's premium robocall protection to T-Mobile subscribers.
• VerizoncoreChannel Partner/ Reseller/ DistributorVerizon is a carrier partner where Nomorobo Max is available. Provides distribution channel for Nomorobo's premium robocall protection to Verizon subscribers.
• AT&TcoreChannel Partner/ Reseller/ DistributorAT&T is a carrier partner where Nomorobo Max is available. Provides distribution channel for Nomorobo's premium robocall protection to AT&T subscribers.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Market position

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@nomorobomax
• Xx.com/nomorobo
• Facebookfacebook.com/nomorobo
• LinkedInlinkedin.com/company/nomorobo

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Nomorobo