LINESERVE

Messaging — hosted in Dar es Salaam

Coming soon

Messaging

Reach every phone in Africa from one API.

Bulk SMS, WhatsApp, voice, USSD and airtime through a single API and dashboard — with direct carrier routes, delivery reports, and the regulatory paperwork handled for you.

Bulk SMSWhatsAppVoiceUSSDAirtimeOTP
  • Direct carrier connections
  • Two-way messaging & DLRs
  • Three locally-hosted regions — Nairobi, Dar es Salaam & Lagos
  • Data residency for Tanzania's Personal Data Protection Act — your data stays in-country
  • Sender ID registration handled

Launching soon · Local billing in KES, TZS & NGN

Channels

Every way your customers' phones can listen

One API and one dashboard across all channels — start with Bulk SMS, add the rest as they launch.

First to launch

Bulk SMS

Transactional and promotional SMS with delivery reports, two-way replies, and reach into 195 countries over direct carrier routes.

Coming soon

WhatsApp Business API

Rich media, message templates, and two-way conversations on the channel your customers already use.

Coming soon

Voice

Programmatic calls and IVR menus from your applications — announcements, verifications, and call flows.

Coming soon

USSD

Interactive menus that work on every handset with no data or smartphone required — built for reach.

Coming soon

Airtime

Send airtime top-ups and rewards to any number via API — incentives, refunds, and disbursements.

Coming soon

OTP & 2FA

One-time codes over SMS, WhatsApp, or voice with smart fallback — verification that actually arrives.

Channel availability and rates will be announced at launch — talk to sales for early access.

The platform

Built for delivery, not just sending

Carrier routes, receipts, retries, and regulatory filings — the unglamorous parts of messaging, handled.

Direct carrier connections

450+ direct routes into 195 countries — messages take the short path, not the grey route.

Two-way messaging

Inbound replies stream to your webhook in real time for surveys, support, and confirmations.

Real-time delivery reports

Per-message delivery receipts with failure reasons, and automatic retries up to three times.

Message scheduling

Queue campaigns up to six months ahead, in any timezone, from the dashboard or API.

Sender ID management

We file registrations with the regulator in each market and keep them current.

Compliance built in

GDPR-aligned, built for Kenya's DPA and Nigeria's NDPR, with automatic DND filtering for promos.

REST API & 7 SDKs

PHP, Python, Node.js, Java, C#, Go, and Ruby — most teams send their first message within the hour.

Campaign tools

Contact groups, templates, and per-recipient personalization without writing code.

99.95% uptime

Redundant delivery infrastructure across data centres, with automatic failover.

Regions

tz-1a is home. Nairobi and Lagos are on the same account.

Deploy in Dar es Salaam and your data stays in Tanzania, in the same city as most of the people using it. ke-1a in Nairobi and ng-1a in Lagos are one API call away on the same console and the same shilling bill, so a standby or an offsite copy is a line in a config file rather than a supplier to onboard. Typical in-metro round trips are around 6 ms in Dar es Salaam, ~2 ms in Nairobi and ~4 ms in Lagos.

Traffic between Tanzanian networks is exchanged in Dar es Salaam. The Tanzania Internet eXchange has run there since 2003 as a project of TISPA, the Tanzanian ISP association; PeeringDB records 32 networks and 798G of connected capacity there, with Akamai, Meta, Cloudflare and TTCL among them, and no fee to join. The point of a local exchange is a plain one: a packet from one Tanzanian network to another changes hands in the city, instead of being hauled to Europe and back to travel four kilometres.

International capacity comes ashore in the same city: SEACOM, EASSy and SEAS land at Dar es Salaam, a named landing point on 2Africa as well. Inland, the National ICT Broadband Backbone carries it onward — government fibre managed by TTCL, 13,820 km laid of a 16,280 km target as of FY2024/25, reaching every region and crossing into Zambia, Malawi, Kenya, Uganda, Rwanda and Burundi. One origin in Dar es Salaam therefore has a real answer for a user in Mwanza, a site office outside Geita and a clearing agent at Tunduma.

TCRA's count for the quarter ending March 2026 tells you who is at the other end: Vodacom 36.19 million subscriptions, Yas 31.85 million, Airtel Tanzania 23.75 million, Halotel 18.32 million, against 58.9 million internet subscriptions nationally, roughly 99% of them mobile wireless. The largest reaches under a third of the country: no carrier arrangement covers a Tanzanian audience, and being inside Tanzania covers all of them at once.

Live

Tanzania

Dar es Salaam

~6 ms

typical, within metro · Data stays in Tanzania

Live

Kenya

Nairobi

~2 ms

typical, within metro · Data stays in Kenya

Live

Nigeria

Lagos

~4 ms

typical, within metro · Data stays in Nigeria

Expansion zonesUganda · ug-1aSouth Africa · za-1aGhana · gh-1a

Use cases

Built for what you're building

OTP & 2FA

One-time codes for banking, fintech, and SaaS logins — delivered in seconds, with fallback.

Marketing campaigns

Opt-in promotions with personalization, scheduling, and automatic DND filtering.

Alerts & notifications

Transaction confirmations, security alerts, and outage notices the moment they happen.

Reminders

Appointments, payments, and renewals — fewer no-shows and late payments, on autopilot.

How it works

First message in under an hour

1

Create an account

Sign up and get sandbox API keys with free test credits — no card required.

2

Register your sender ID

Send us your business details and we file with the regulator in each market for you.

3

Send from anywhere

One REST call or the dashboard — delivery reports stream back to your webhook.

Uptime SLA

99.9%

  • When hardware fails
  • When the region is the risk
  • Service credits applied automatically when we miss the SLA

Support

A Tanzanian line, and a clock that already matches yours

Call +255 761 847 121. Tanzania is on East Africa Time all year with no daylight saving, so there is no drift to track and no arithmetic before you dial — business hours mean the same thing in March as in November. A ticket opened at the start of a Dar es Salaam morning lands inside a working day, rather than at the bottom of a queue that wakes up as yours is ending.

That match is worth the most at the moment you can least afford it. Month-end, last Friday, 16:40: the reconciliation job has stalled, the settlement file has not written, and the deadline is Monday. What you want then is an engineer who is awake and at work with your instance ID in front of them — a resize that needs a reboot window, a snapshot restored into a new instance, a routing question, a port that has stopped answering. Not a form, and not a five-hour wait for somebody's morning.

[email protected] takes the commercial half, and it is worth using before you order: your TIN and registered name as the TRA holds them, a purchase-order or grant code the invoice must carry, an annual invoice that fits the budget year. Migration planning and assistance come at no extra charge, from a rack in Frankfurt or from across town. Customer references are available under NDA.

Tanzania

+255 761 847 121

Why Lineserve

Local routes beat global relays

Global aggregators relay African traffic through whoever is cheapest this week. Direct carrier connections and local registrations are what actually move delivery rates.

CapabilityLineserveGlobal aggregators
Direct local carrier routesSometimes
Sender ID filings handled locally
DND compliance for KE & NG built in
One API for SMS, WhatsApp, voice & USSDSometimes
Billing in KES, TZS & NGN
Support in your timezone
Data stays on the continent

FAQ

Questions, answered

Transactional messages — OTPs, confirmations, notifications — are exempt from Do-Not-Disturb registries and deliver around the clock. Promotional campaigns require opt-in and are automatically filtered against DND lists where they apply.

We file the paperwork with the regulator for you. In Kenya, Communications Authority approval typically takes 2–3 business days once your business documents are in; Nigeria and Tanzania follow their own regulators with similar handling.

160 characters for standard GSM text, 70 for Unicode (emoji, Arabic, and other scripts). Longer messages concatenate automatically, up to 6 parts.

Yes. Two-way messaging delivers inbound replies to your webhook in real time — for surveys, support conversations, and confirmations.

Real-time delivery receipts stream to your webhook with per-message status. Failed messages retry automatically up to three times, and you're not charged for messages that never deliver.

Yes — schedule messages up to six months ahead, in any timezone, from the dashboard or the API.

A REST API with SDKs in seven languages — PHP, Python, Node.js, Java, C#, Go, and Ruby. Most teams send their first message in under an hour, starting in a sandbox with free test credits and no card required.

Yes. GDPR-aligned with in-country data residency, built for Kenya's Data Protection Act and Nigeria's NDPR, with DND registry filtering applied to promotional traffic automatically.

Yes. Your data is hosted in Tanzania and stays in-country, giving you data residency for Tanzania's Personal Data Protection Act. It isn't moved out of Tanzania without your instruction.

In our Dar es Salaam data centre (tz-1a). Your content is stored and served from Dar es Salaam, close to your users.

Pay in your local currency using M-Pesa and other mobile money, bank transfer, or card. No foreign card or forex conversion is required.

You're billed in TZS. Prices can be viewed in USD, KES, TZS, or NGN, but as a Tanzania customer you pay in TZS with no forex conversion.

Every channel, one API — launching soon

Bulk SMS leads the way, with WhatsApp, voice, USSD and airtime to follow. Talk to us to reserve early access.

Launching soon · Sandbox with free test credits · Local billing in KES, TZS & NGN