Contact

Bring us the destination, we will help find the route

Tell us the countries, volume, message type, and timeline. We will help you choose routes, understand compliance steps, and plan a launch that does not rely on guesswork. One Message is a trading brand of One Message Group, our parent company.

Start the route conversation

Give us the context and we will respond with next steps, pricing direction, or coverage confirmation.

We typically reply within one business hour during 09:00-18:00 GMT.

Sales
+44 7578 313370
Call or WhatsApp for sales enquiries
Headquarters
One Message Ltd
71-75 Shelton Street, Covent Garden
London, WC2H 9JQ
United Kingdom
Support hours
Email: 24/7 monitored
WhatsApp: 7 days, 06:00–22:00 GMT
Enterprise: dedicated 24/7 line
Need it urgent?
For sender ID approvals, OTP routing changes, or outage queries — WhatsApp us. We escalate in under 5 minutes.
Parent company
One Message is a trading brand of One Message Group, our parent company.

Support for the places where delivery gets complicated

Our team helps with sender IDs, route quality, compliance questions, and delivery troubleshooting across supported countries.

🇬🇧
London, United Kingdom
Headquarters

71-75 Shelton Street, Covent Garden
London, WC2H 9JQ

Sales · Compliance · Engineering

Open in Google Maps
🇬🇧
London · NOC
24/7 Operations

Network Operations Centre
United Kingdom

Routing · Carrier Partnerships · Engineering

WhatsApp the routing desk

A few answers before we talk

How fast can I start sending?
Self-serve accounts are live in minutes. KYC verification (for higher volumes and custom sender IDs) is typically approved within 24 hours by our London compliance team.
Do you offer trials?
Yes — 50 free credits on signup, plus 200 credits if you complete KYC. No credit card required.
Can you handle our enterprise traffic?
We currently route over 320 million messages and serve customers sending 5M+ SMS per month. Dedicated SMPP binds and 99.9% uptime SLAs are available on enterprise contracts.
Which languages and scripts do you support?
Full Unicode (UTF-16) is supported on every route, covering Latin, Arabic, Chinese, Japanese, Korean, Russian, Devanagari, Bengali, Thai, Hebrew, and more. Bulk voice supports neural text-to-speech in 30+ languages.
Are you GDPR compliant?
Yes. One Message Ltd is registered with the UK ICO, hosts EU customer data in EU regions, and offers DPAs and standard contractual clauses for cross-border data flows.