Why Choose Us
Bulk SMS UK — GDPR-Compliant SMS Gateway
With Send99 you can send Promotional SMS and Transactional SMS to UK on approved routes, subject to carrier and local compliance rules, with fast delivery and transparent pricing.
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Why Businesses Choose Send99 in the UK
Special Feature
Unbeatable Rates
Our direct interconnections with operators around the globe, rate- and route-quality-based automated routing, and state-of-the-art infrastructure ensure higher delivery rates, lowest latency and round-the-clock support
Delivery Speeds
Our direct interconnections with operators around the globe, rate- and route-quality-based automated routing, and state-of-the-art infrastructure ensure higher delivery rates, lowest latency and round-the-clock support
Messaging Quality
Sending messages is quite easy, but Delivering them quickly and consistently is more difficult. We use technologies that help us to exceed the benchmarks of messaging quality, regardless of the geographical location of the User
Sending Bulk SMS to the UK
Send99 supports all the mobile networks in UK. We offer delivery with International Long code Senders, Alpha Numeric Senders and Local Short code Senders, Send99 is a proud direct partner of over 800 Mobile Networks Globally and Helps Companies with Promotional SMS Campaigns, OTP Validation, Sending Banking Alerts and other critical information.
- Send SMS to any country
- Dynamic Sender ID
- Unicode Support
- Messages over https API
- Messages over SMPP
UK Network Coverage
Send99 provides broad UK reach across EE, O2, Vodafone, and Three—the four main mobile network operators (MNOs), plus many MVNOs and sub-brands (e.g. GiffGaff, Tesco Mobile, and Sky Mobile) that use those host networks. Whether your subscribers are on contract or pay-as-you-go, messages are presented with the sender ID format you register (numeric or alphanumeric) subject to MNO and Ofcom-consistent rules. We do not rely on unregistered gray routes: delivery reports help you show boards and data-protection officers that you used a vetted A2P path. Ported numbers (UK NP) are supported so SMS still reaches users who changed provider but kept the same mobile number. For multi-region apps, the same account can add Ireland and the EU on separate rate cards, while the UK list stays in GBP/EUR for finance. Ask for a route sheet with sample DLRs for the MNOs you expect on your data file.
GDPR Compliance for UK SMS
The UK GDPR and Data Protection Act 2018 apply to personal data in marketing and service SMS. You need a lawful basis (usually consent for marketing, or contract / legitimate interest for some service messages) and a clear privacy notice explaining that phone numbers and message content are processed for messaging. Consent for marketing must be freely given, specific, and easy to withdraw; a dedicated opt-out in every text and suppression file is essential. Data processing agreements (DPAs) and subprocessors for hosting and carriers should be on file. Send99 acts as a processor when you instruct us to deliver messages; you remain the controller for your lists and use cases. International transfers after your traffic leaves the UK/EU need appropriate safeguards (SCCs, IDTA, or UK addendum as applicable). We can provide standard contractual clauses and security summaries for your ICO-facing documentation. Direct marketing and soft opt-in rules under PECR also matter for texts—validate your legal advice for your specific sector (finance, public sector, children’s services, etc.).
UK Use Cases
Organisations use Send99 in the UK for NHS and private healthcare appointment reminders and care messages (where clinical governance allows SMS), retail and grocery for click-and-collect, delivery, and sale alerts, banking and fintech for SCA, fraud, and account alerts, and logistics and couriers for “out for delivery” and rebooking links. Public sector and education use SMS for school closures, exam reminders, and service updates when email is not read in time. Charities and membership bodies use compliant opt-in lists for renewals and events. Pricing is typically shown in € on our global table and settled in the currency of your account; for UK-only volumes we can provide GBP-equivalent estimates and VAT treatment for your entity. We support both one-shot campaigns and API-driven triggers from CRM and patient systems where your IG teams approve the integration.
Sender ID Rules for the UK
The UK generally allows alphanumeric sender IDs (up to 11 characters) for A2P when agreed with the MNO, which makes your brand name appear on the handset instead of a long number. Some banks and public bodies prefer a short code or dedicated long number for two-way and verification flows. Numeric long codes and short codes support MO (reply) and MT use cases, subject to MNO and Ofcom-consistent terms. Shared short codes are largely phased out—dedicated 5- to 6-digit short codes for high-volume, keyword-led programs are the norm for premium campaigns. Sender must not impersonate another brand or a government body, and you must identify the sender in the first message where the regulator expects transparency. Unicode (non-GSM) characters are supported for Welsh and other character sets, but one SMS may count as multiple billable units. We pre-check templates where possible to avoid disallowed content classes (e.g. some gambling or adult categories). Contact us to register a sender label that matches EE, O2, Vodafone, and Three acceptance and your DPA on file.
Frequently asked questions
How much does bulk SMS to the UK cost?
Send99 uses pay-as-you-go pricing. Rates for the UK depend on the destination network, volume, route class, and sender type, so the live rate card in your account is the source of truth. For a written quote, share your monthly volume, target networks, and whether you need marketing, transactional, or two-way traffic. See bulk SMS pricing for the general model.
Which sender IDs can I use in the UK?
Alphanumeric sender IDs and UK long numbers are the usual options in the United Kingdom. Sender-ID and use-case review for high-volume or regulated traffic may be required before high-volume traffic is approved. Send99 helps you choose a sender type that matches your use case and expected throughput.
Is bulk SMS compliant in the UK?
Business messaging in the United Kingdom is governed by UK GDPR and the Privacy and Electronic Communications Regulations (PECR), enforced by the ICO. You need a documented opt-in, a clear opt-out using STOP/HELP keywords, and records showing when and how each contact consented. Send99 provides the gateway and delivery reporting; the sending business remains responsible for consent and content.
Can I send OTPs and marketing messages to the UK?
Yes. Transactional messages such as OTPs, alerts, and receipts usually need transactional routing and may require a different sender profile from promotional campaigns. Keep marketing to contacts who opted in, respect quiet hours, and separate the two traffic types so carrier filtering does not delay time-sensitive messages.
How fast is delivery to the UK?
Most messages are submitted to EE, O2, Vodafone, and Three within seconds, but actual handset delivery depends on the subscriber being online, carrier filtering, and the route. Send99 returns delivery reports so you can measure acceptance and troubleshoot failures instead of assuming every submitted message arrived.