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How operators recover leaked A2P revenue with the right firewall.

Most mobile network operators capture only part of the A2P revenue they are entitled to. The leakage goes to grey routes — and modern firewalls recover it.

BroadNet Operator Solutions
AuthorEditorial standards
11 min read
Operators · Issue 21
11 min read

Tier-1 MENA mobile operator carries very large SMS volumes every month, and a substantial share of it is A2P traffic — sent by businesses to subscribers. At A2P interconnect rates, that traffic should be a significant revenue line. In practice, most operators capture only part of it. The difference is grey-route leakage — and the right firewall recovers it.

Where the leakage comes from

  • Aggregators routing A2P traffic as P2P via consumer SIM cards ("SIM box" termination).
  • Foreign HLR lookups masking the true source operator.
  • SS7 backdoors abused for SMS originator falsification.
  • Unmonitored international aggregator agreements without sender-ID enforcement.

What firewalls do about it

Modern SMS firewalls — including BroadNet's — combine behavioural ML (per-MSISDN baseline, throughput anomalies, sender-ID reputation) with deterministic rules (sender ID registry, content category, route reputation). The result: traffic that bypasses official A2P agreements gets identified, blocked, or routed through a billable A2P path.

What year one looks like

How much revenue comes back depends on the network. Operators with no firewall have the most grey traffic to convert; those with legacy rule-only firewalls have already closed the easiest categories. BroadNet does not publish a benchmark figure — the recoverable share is measured on your own traffic, in mirror mode, before anything is enforced.

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BroadNet Operator Solutions

Operator Solutions builds and runs SMS firewalls, SS7 protection, and revenue assurance for mobile operators. They have been doing it on MENA networks since 2003. They write about what they see.

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