1995 November Jointly established through investments by Sony Corporation, Sony Music Entertainment (Japan), Inc., and Sony Finance International, Inc.
1996 January Launched So-net Internet connection service.
1997 November Released PostPet DX mail software.
1999 November Became the first Internet service provider (ISP) to obtain Privacy Mark.
2002 May Launched fiber-to-the-home (FTTH) connection service.
2003 June Became the first domestic ISP to obtain certification for both international information security management standard (ISMS) BS7799 (currently ISO/IEC 27001:2005) and domestic ISMS designation standard (currently JIS Q 27001:2006).
2005 December Listed on TSE Mothers.
2006 October Changed company name to So-net Entertainment Corporation.
2007 November Relocated headquarters to Osaki, Shinagawa-ku, Tokyo.
2008 January Listed on TSE 1st Section.
2010 February Acquired the ISP business from USEN CORPORATION.
2012 December Delisted from TSE 1st Section.
2013 January Became a wholly-owned subsidiary of Sony Corporation.
April Launched "NURO Hikari".
July Changed company name to So-net Corporation.
2015 August Launched "NURO Hikari 10G".
2016 March Became a subsidiary of Sony Mobile Communications Inc.
May Relocated headquarters to Higashi-shinagawa, Shinagawa-ku, Tokyo.
July Changed company name to Sony Network Communications Inc.
September Renewed LTE communication service and launched “nuro Mobile”.
2017 November Expanded "NURO Hikari" service area to Tokai and Kansai.
2018 March Launched "NURO Hikari 10Gs/6Gs".
October Launched smart home service "MANOMA".
2019 March Expanded "NURO Hikari" service area to Kyushu.
September Launched "ELTRES ™ IoT Network Service", a communication service for IoT using the LPWA communication standard.
December Expanded "NURO Hikari" service area to Hokkaido.
2020 March Launched "NURO Hikari 20Gs".
2021 June Expanded "NURO Hikari" service area to Western Honshu.