USSD Banking: Nigeria's Unsung Hero of Financial Inclusion
While apps grab the headlines, USSD codes have quietly enabled 50 million Nigerians without smartphones to access banking services on basic feature phones.
By Kelechi Okafor, Digital Finance Correspondent · · 4 min read
In the national conversation about Nigeria's fintech boom, smartphone apps get the glamour — the slick interfaces, the venture capital funding rounds, the conference keynotes. But the most consequential financial technology serving ordinary Nigerians is decidedly unglamorous: a string of digits dialled on a basic feature phone, costing less than ₦20 per session, that connects 50 million people to a full suite of banking services without internet, smartphones or electricity beyond what is needed to charge a ₦5,000 handset.
USSD — Unstructured Supplementary Service Data — was designed in the 1990s as a telecom protocol for network-level commands. Its adoption by Nigerian banks as a financial channel, pioneered by GTBank's *737# in 2013, was a stroke of pragmatic genius. Nigeria had 150 million mobile subscribers but only 30 million smartphone users at the time. By routing banking through the telecom layer, banks reached four times as many potential customers overnight.
Today, every licensed commercial bank operates at least one USSD code. First Bank's *894# is the busiest, processing over 1.2 million daily transactions including transfers, airtime top-ups, bill payments and loan disbursements. Access Bank's *901# handles the largest transfer volumes by naira value. The codes operate across all four major networks — MTN, Airtel, Glo and 9Mobile — and function even during power outages, making them uniquely resilient in Nigeria's infrastructure environment.
The USSD ecosystem has not been without controversy. A prolonged standoff between telecoms companies and banks over interconnection fees paralysed USSD banking for millions of customers in 2020, exposing the fragility of a system that sat at the junction of two powerful and mutually suspicious industries. The CBN eventually intervened, compelling a cost-sharing agreement, but the incident accelerated banks' investment in proprietary mobile apps as a hedge against telecom dependence.
Despite the app revolution, USSD volumes have continued to grow in absolute terms, driven by new user registration in rural areas and Northern Nigeria where smartphone penetration lags. The technology serves as an entry point: many Nigerians begin their banking journey on USSD and migrate to apps as their income and smartphone access improves. Far from being rendered obsolete, USSD banking will remain foundational to Nigerian financial inclusion for at least another decade.