How to get annoted immunoglobulin loci in Ensembl

Question

[wangshx]

I want to do some research in noncoding region, and I am following a paper, which avoid immune system-coupled somatic hypermutation (SHM) by removing annoted immunoglobulin (Ensembl). I tried to find them in gtf file by using keyword, failed. I surfed on Ensembl and search it, a lot of text information returned. (search result) How can I get a summary file contains gene name or gene location of all immunoglobulin loci?

Thanks.