What number of landlines are in service in 2025?
It is true that landline utilization has been reducing in favor of VoIP and different applied sciences—however landline telephony will not be going away anytime quickly.
Here is the information on landline utilization and the speed at which it is being changed across the globe.
The Present State of Landline Utilization
The general public switched phone community (PSTN) reached its peak in 2006 when there was a world whole of 1.22 billion strains in service.
Since then, a mean decline of 6% every year has set in. There was no respite in 2024, with the PSTN subscription whole dropping by 16% in 12 months to finish the yr at 407 million.
Of the 225 nations and territories coated by TeleGeography’s GlobalComms Database, solely 17 had increased PSTN penetration charges on the finish of 2024 than they did again in 2005. Of the 208 others, 161 skilled double-digit proportion level reductions over that interval.
Trying forward, by 2031, the PSTN is forecast to shrink to fewer than 250 million strains in service globally, about one-fifth of its 2006 peak.
VoIP Passes PSTN
Whereas cell substitution has curtailed alternatives for progress within the mounted voice market, a further cause for the waning of PSTN voice telephony is the comparatively robust take-up in voice-over-IP (VoIP) subscriptions.
The whole variety of IP-based voice subscriptions surpassed these linked by way of the PSTN for the primary time in 2024, rising 9% year-over-year to roughly 447 million.
PSTN Fading Quick
VoIP Subscriptions Up 9% in 2024
Supply: TeleGeography’s GlobalComms Database
TeleGeography forecasts that by end-2031, VoIP strains will outnumber PSTN strains by nearly 300 million. World VoIP family penetration will stand at 21% by that date, whereas solely 10% of households will nonetheless have PSTN phone connections.
France, Japan, Germany, and Portugal had been among the many nations on the vanguard of VoIP take-up. Initially of 2025, all 4 had VoIP penetration charges exceeding 75%, and every is predicted to achieve a VoIP penetration price of greater than 90% by the top of 2031.
By that date, VoIP penetration will surpass PSTN penetration in 145 nations and territories.
General Strains Down 2%
Regardless of the expansion in VoIP, the mixed PSTN and VoIP subscriptions whole declined by 2% in 2024 to 854 million, and is forecast to drop by an annual common of 1.1% per yr between now and 2031.
Mounted voice penetration is declining throughout all areas, besides Africa, the place it is remained secure at round 9%-10% for a number of years. Particular person pockets of progress stay; North African nations, resembling Algeria and Egypt, each registered annual progress of 6% in 2024, whereas different notable will increase had been seen in Gabon (up 23%) and Mali (up 15%).
However, family penetration in Africa seems to have already peaked at simply 16% in 2008.
Downward Pattern
Penetration Dropping Virtually All over the place
Supply: TeleGeography’s GlobalComms Database
Elsewhere on the planet, solely India, Egypt, and Mexico noticed their mixed PSTN+VoIP subscription bases develop by greater than 500,000 in 2024, with India’s whole rising by 23% to over 39 million. Progress is being pushed by the take-up of bundled mounted broadband and glued voice providers.
Alternatively, the U.S., Russia, China, Brazil, the U.Okay., Japan, and Colombia every skilled declines of greater than 1 million mounted voice subscriptions within the 12 months main up to December 31, 2024.
The Transfer to All-IP
It will likely be a long time earlier than the PSTN disappears from all corners of the world, however the pattern towards VoIP is inexorable.
Within the U.S., for instance, in January 2025, AT&T confirmed plans to start the method of discontinuing legacy mounted voice providers in round 25% of its wire facilities. The telco now plans to close all copper-based providers nationwide (aside from California) by the top of 2029.
The Federal Communications Fee (FCC) now not requires U.S. telcos to supply copper landline providers.
Within the U.Okay., in the meantime, BT had plans to change off remaining PSTN circuits by 2025, however later revised this to 2027.
Though cautious of cannibalizing an present income stream, telcos are rising more and more eager to dismantle the PSTN and embrace all-IP networks.
IP networks are cheaper to take care of, they permit a greater diversity of providers resembling IPTV, and infrastructure distributors are starting to discontinue assist for legacy tools.
Information on Cellular Markets, Mounted Broadband, and Extra
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