# How do I send bulk SMS?

> To send bulk SMS, connect to a provider over REST or SMPP (or upload a list to a campaign dashboard), register your sender ID, confirm every recipient has opted in, then send in throughput-managed batches while watching delivery receipts. The four things that determine success are a clean consented list, a registered sender ID, correct encoding to control segment count, and DLR monitoring so you catch failures early. See /products/bulk-sms.

- Canonical URL: https://www.broadnet.me/answers/how-to-send-bulk-sms
- Language: en
- Last reviewed: 2026-09-27
- Publisher: BroadNet (https://www.broadnet.me)

## Start with a clean, consented list

Bulk sending to unconsented or stale numbers wrecks delivery rates and risks regulatory penalties. Collect explicit opt-in, honour do-not-contact lists, and validate numbers with an HLR lookup before a large send. See /answers/what-is-dnc and /products/hlr-lookup.

## Register your sender ID

In most markets an unregistered alphanumeric sender ID is dropped by the operator firewall, so a bulk blast can silently fail at scale. Register in every target market and classify the traffic correctly. See /answers/how-to-register-sender-id.

## Control encoding and segments

At bulk volume, a stray Unicode character that pushes each message to two segments doubles your bill. Keep copy inside one GSM-7 segment where possible and validate with the /tools/sms-segment-calculator. See /answers/what-is-concatenated-sms.

## Manage throughput and timing

Send within the throughput your route allows, spread large campaigns to avoid operator spam heuristics, and respect recipients' quiet hours and timezones. BroadNet sustains up to 30,000 SMS/sec per node for high-volume campaigns. See /answers/what-is-tps.

## Monitor delivery receipts

Watch DLRs by country and operator, and re-route through failover if a path degrades mid-campaign. What you can't measure, you can't fix. See /answers/what-is-dlr and /answers/how-to-improve-sms-delivery-rates.

## Related

- [All answers](https://www.broadnet.me/answers)
- [Glossary](https://www.broadnet.me/answers)
- [What are SMS marketing best practices?](https://www.broadnet.me/answers/sms-marketing-best-practices)
- [How do I register an alphanumeric sender ID?](https://www.broadnet.me/answers/how-to-register-sender-id)
- [What is a concatenated SMS?](https://www.broadnet.me/answers/what-is-concatenated-sms)
- [How do I improve SMS delivery rates?](https://www.broadnet.me/answers/how-to-improve-sms-delivery-rates)
- [How can I reduce SMS costs?](https://www.broadnet.me/answers/how-to-reduce-sms-costs)
- [Bulk SMS](https://www.broadnet.me/products/bulk-sms)
- [Segment calculator](https://www.broadnet.me/tools/sms-segment-calculator)
- [HLR Lookup](https://www.broadnet.me/products/hlr-lookup)