Entel Bolivia pulls the plug on 3G in La Paz to fatten its 4G layer

Entel Bolivia started switching off its 3G network in La Paz on October 22, refarming spectrum in the 850 MHz band to add capacity to its 4G service. The state-owned operator confirmed the move, and so did Bolivia's Ministry of Public Works, Services and Housing, which framed it as part of a wider network modernisation programme.

The ministry says the programme targets three things: better spectrum efficiency, more network capacity and stronger mobile connectivity. All three, conveniently, come from the same act — taking frequencies away from a technology few people mourn and giving them to one people actually use.

What exactly is changing?

Entel is refarming the 850 MHz band in La Paz, moving it from 3G duty to LTE. For a country still building out 4G, low-band spectrum is the workhorse. It carries signal into buildings and across the hilly geography of a city sitting at nearly 4,000 metres. Reallocating it to 4G should mean better coverage and throughput for LTE users without Entel buying a single extra megahertz.

There is a catch, and it has a name: legacy handsets. Entel has urged customers whose phones only support 3G to upgrade to 4G/LTE-compatible devices, or newer, to keep mobile service. The operator has not disclosed how many customers that affects. One suspects the number exists somewhere. It just hasn't been published.

Who is driving the decision?

Entel manager Jorge Francisco Del Solar said the operator was seeking to build "a more efficient network with greater capacity to meet demand," while encouraging wider adoption of 5G.

That last clause is doing some lifting. Bolivia is late to 5G — regional peers launched commercial services years ago — and refarming 850 MHz to LTE is the sensible prerequisite. You don't jump from 3G to 5G. You climb the stairs.

The shutdown sits inside the modernisation programme the ministry described, aimed at improving spectrum efficiency, increasing capacity and enhancing mobile connectivity across Entel's network. DPL News reported on the shutdown as Entel seeks to improve capacity and prepare its network for growing data demand.

Does the shutdown spread beyond La Paz?

Not yet, and not on any published schedule. The switch-off currently applies only to La Paz, and Entel has announced no timeline for extending it to other departments. La Paz is the administrative capital, so it makes sense as a first site: dense, high-demand, and a proving ground for the customer-migration mechanics.

The absence of a timetable is standard practice in spectrum refarming, if not entirely reassuring for 3G users elsewhere. Operators tend to retire legacy networks market by market, watching churn and device upgrade rates before committing to dates.

Why it matters

The move follows a wider industry shift away from legacy mobile networks, as operators worldwide redirect spectrum and investment towards 4G and 5G. Entel's version is modest by global standards — one city, one band — but the logic is identical. 3G carries little data traffic relative to the spectrum it occupies, and every megahertz locked in the past is a megahertz not serving LTE.

For Entel's customers, the practical takeaways are simple:

• 3G-only handsets lose service in La Paz; users need 4G/LTE or newer devices.
• 4G users should see improved capacity and connectivity as the 850 MHz refarming beds in.
• Customers outside La Paz keep 3G for now, with no announced end date.

The commercial reality sits somewhere between the ministry's framing and the operator's ambition. Refarming improves efficiency, yes. It also quietly outsources part of the cost to customers holding old phones. Neither Entel nor the ministry has said whether any device-subsidy or trade-in support will accompany the shutdown.

What comes next is a question of pace. If the La Paz shutdown proceeds without service disruption, expect Entel to extend refarming to other departments and, eventually, to position the strengthened 4G layer as the foundation for the 5G adoption Del Solar wants. No date has been given. In Bolivian network upgrades, the spectrum moves faster than the announcements.