Nomorobo
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.
- Company typePrivate
- Founded2013
- HeadquartersMount Sinai, United States
- Headcount11–50
- GTM typeB2B and B2C
- OfferingSoftware
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.
Nomorobo firmographics
Firmographics- 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
Nomorobo industry classification
Industry- Product category
- Robocall and Spam Text Blocking Software
- NAICS
- Software Publishers (5132)
- akta.pro primary industry
- Bot Management & Mitigation (HDADALAB)
Keywords
Where Nomorobo is headquartered
LocationHeadquarters
- HQ city
- Mount Sinai
- HQ country
- United States
- HQ region
- North America
Offices2 records
Markets served
Nomorobo business model
Business model- GTM type
- B2B and B2C
- Offering type
- Software
- Cost components
- Technology or R&D, Personnel, Infrastructure, Marketing or Sales, Operations, Others
Revenue model
- 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.
- 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.
- Consumer Subscription - Nomorobo Family: Family plan annual subscription covering up to 4 devices with all Nomorobo Max protections including phishing and spam text filtering.
- One-time App Purchase - Spam Text Blocker: One-time purchase of $9.99 for standalone spam text blocking app with no subscription required.
- 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.
- Bulk Licensing - Enterprise: Enterprise bulk licensing for business call and text analytics solutions, fraud protection, and number remediation services.
- White Label Partnership: White-label solutions for carriers and telecommunication companies to integrate Nomorobo's technology into their own platforms.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Monthly | Nomorobo Basic - Essential spam protection |
| Subscription | Annual | Nomorobo Max - Premium robocall protection |
| Subscription | Annual | Nomorobo Family - Multi-device family protection |
| One time/ perpetual license | Monthly | Spam Text Blocker App - Standalone text protection |
Go-to-market motion4 records
Distribution channels7 records
Marketing channels6 records
Nomorobo product offering
Product offeringCore 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
Companies that use Nomorobo
Customer profileNamed customers5 records
Segments4 records
Ideal customer profiles4 records
Nomorobo technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration8 records
AI capability4 records
Feature8 records
Nomorobo partnerships and signals
Strategic signalPartnerships
Four partnerships are on record, tiered core.
- AARPcoreNomorobo 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-MobilecoreT-Mobile is a carrier partner where Nomorobo Max is available. Provides distribution channel for Nomorobo's premium robocall protection to T-Mobile subscribers.
- VerizoncoreVerizon is a carrier partner where Nomorobo Max is available. Provides distribution channel for Nomorobo's premium robocall protection to Verizon subscribers.
- AT&TcoreAT&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
Nomorobo competitors and assessment
Company assessmentMarket position
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Nomorobo social profiles
Digital presenceNomorobo compliance and trust
Trust signalCompliance2 records
Nomorobo financial estimates
Financial estimateRevenue estimate
Valuation estimate
Nomorobo leadership team
Management profileNumber of profiles
Profiles1 record
Nomorobo funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Nomorobo M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Nomorobo
What does Nomorobo do?
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.
Is Nomorobo a public or private company?
Nomorobo is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Nomorobo founded?
Nomorobo was founded in 2013. It employs 11 to 50 people.
Where is Nomorobo based?
Nomorobo is headquartered in Mount Sinai, United States, in the North America region.
How does Nomorobo make money?
Seven revenue lines are on record. Consumer Subscription - Nomorobo Basic is the primary driver. The others are consumer Subscription - Nomorobo Max, consumer Subscription - Nomorobo Family, one-time App Purchase - Spam Text Blocker, B2B API and Data Licensing, bulk Licensing - Enterprise and white Label Partnership.
Does Nomorobo have an API?
Yes. Nomorobo offers a public API for accessing robocaller data, spam scores, blacklist status, and caller reputation information. The API is available for carriers, businesses, and individuals. Carriers can access a real-time feed of IRS call-back scammers (CSV file updated every 20 minutes) and a full blacklist of over 1.4 million known robocallers. API usage guidelines and rate limits apply per the B2B Terms of Service. Developer documentation is at www.nomorobo.com/api.
What industry is Nomorobo in?
Nomorobo's product category is Robocall and Spam Text Blocking Software. Its primary akta.pro industry code is HDADALAB, Bot Management & Mitigation. Its NAICS code is 5132.