An operator-grade firewall and testing platform that detects, proves, and eliminates fraudulent A2P SMS routing in real time.
CPaaS providers route A2P traffic via unauthorized grey routes, SIM farms, or SS7 exploits to avoid termination fees — defrauding operators of legitimate revenue.
Bad actors generate fake A2P traffic (OTP pumping, bot-driven SMS requests) to inflate volumes and collect revenue from artificially high termination charges.
Enterprises like Microsoft, Google, or banks have zero visibility into how their SMS are actually routed. They pay premium CPaaS rates with no guarantee of delivery.
100K SMS
Invoiced today (60% fraud)
40K SMS
Actual real traffic
Total cost drops even with slightly higher rates
€0.04
Current rate (diluted)
€0.06
Premium verified rate
Clean traffic justifies higher rates — brands accept it
As the A2P firewall, you see 100% of legitimate inbound traffic. Every SMS that arrives through the authorized route passes through you.
If a brand sends an SMS and it does not pass through the firewall, it means:
| Entity | Visibility |
|---|---|
| Brand / Enterprise | None |
| CPaaS (Twilio, Sinch…) | Partial |
| Aggregator | Partial |
| A2P Shield Firewall | Full |
Trigger real OTP/SMS across thousands of brand websites
Match each test trigger against firewall delivery logs
Flag SMS that are missing or arrived via unauthorized routes
Deliver evidence-grade compliance reports to brands and operators
Headless browser fleet navigates real websites, fills forms, and triggers OTP/verification SMS to dedicated test MSISDNs.
Thousands of brands tested regularly — banks, tech companies, e-commerce, social media, crypto, airlines.
Complete evidence package: screenshots, HTTP traces, timestamps, expected vs. actual delivery and routing path.
| Field | Value |
|---|---|
| Brand | Microsoft |
| Service | Outlook OTP |
| CPaaS provider | Twilio |
| Test MSISDN | +34 6xx xxx x42 |
| Timestamp | 2026-06-04 14:32:07 UTC |
| Expected route | Twilio → Operator FW |
| Firewall received | NOT RECEIVED |
| SMS delivered | Via SIM farm |
| Verdict | NON-COMPLIANT |
A2P SMS gateway deployed at the operator level. All legitimate traffic must pass through.
Automated testing platform that generates real A2P transactions and reports routing anomalies.
We deploy and operate the A2P firewall on behalf of the operator. All A2P traffic is routed through A2P Shield.
Best for: operators without an A2P firewall, or looking to replace their current provider
The operator keeps their existing firewall. We connect to their logs to run the testing engine and deliver brand compliance audits.
Best for: operators with an existing firewall who want independent A2P routing audits
Recover A2P termination revenue lost to grey routes. Enforce aggregator compliance.
Proof that CPaaS providers deliver via legitimate routes. Stop paying for undelivered SMS.
Independent, evidence-based fraud detection. Cross-operator compliance visibility.
Per-SMS fee for processed traffic + revenue share on recovered A2P termination from grey route elimination.
Monthly subscription per brand for continuous monitoring + per-report fees for on-demand routing audits.
How we deploy A2P Shield for a new MNO or MVNO
Time to value: fully operational in 8 weeks. Shadow mode ensures zero disruption to existing traffic during deployment.
The operator firewall that gives brands the truth about their A2P delivery.