[{"mac_prefix":"00:1B:C5:04:20","mask_bits":36,"block_type":"MA-S","organization":"Chamsys Ltd","address":"Unit 3B Richmond Works Southampton Hampshire GB SO15 3FQ","country":"GB"},{"mac_prefix":"70:B3:D5:0B:E0","mask_bits":36,"block_type":"MA-S","organization":"Chamsys Ltd","address":"Unit 3B Richmond Works, Pitt Road Southampton Hampshire GB SO15 3FQ","country":"GB"},{"mac_prefix":"8C:1F:64:FF:80","mask_bits":36,"block_type":"MA-S","organization":"Chamsys Ltd","address":"First Avenue Millbrook Southampton Hampshire GB SO15 0LJ","country":"GB"}]