Was Verizon and are those 2 companies the only companies doing this? Are there any other known cases, just not made such fuss about in other countries? I know

Was Verizon and are those 2 companies the only companies doing this? Are there any other known cases, just not made such fuss about in other countries? I know that the Croatian branch of the German Telekom is often used as a testbed for new developments, like their IPTV service or fiber overland, so I wouldn't be surprised if that already was reality in Croatia or other branches of one of those corps, just kept under the rug.