Signal & Syntax · Messaging and A2P

What Is an SMS Aggregator?

An SMS aggregator connects to a large set of operators and resells SMS routes. The aggregator sits between senders and operator SMSCs.

Also calledSMS wholesaler · SMS hub

SMS Aggregator in Practice

Aggregators buy termination from operators, directly or through other aggregators. Each hop adds cost and a point of failure. Route choice depends on the serving network of each number. Each aggregator bills per segment, on submission or on delivery.

Where ScoreMachine Fits

score.phone.validation.mnp
carrier

carrier returns the network each number terminates on.

Related Terms

A2P messaging A2P (application-to-person) messaging is SMS sent by software to a mobile user. SMS gateway An SMS gateway connects software to mobile networks for sending and receiving SMS. Grey route A grey route delivers A2P SMS through a channel priced for person-to-person traffic. SMPP SMPP (Short Message Peer-to-Peer) is the open protocol linking an SMSC to external systems over TCP/IP.

Read the Guide

Guide

How A2P SMS Reaches a Handset

The path from an API call to a delivery receipt. Read the guide →

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