NTT Hemel Hempstead 4 Data Center (HH4)

NTT DATA's Global Data Centers division runs the Hemel Hempstead 4 Data Center (HH4) in the Hertfordshire town of Hemel Hempstead. The facility sits at 1 Blossom Way, about 25 miles northwest of central London. It is part of NTT's London campus and offers colocation space with access to a mix of local and international carriers. The exact number of carriers and network providers on site is not listed, but the site is built for high density and low latency connectivity to the UK capital's internet backbone.