The first part of the ISBN identifies a country, area or language area participating in the ISBN system. Some members form language areas (e.g. German language group = group number 3) or regional units (e.g. South Pacific = group number 982).

Caribbean Community (Caricom) (976) includes:

Antigua AG, Bahamas BS, Barbados BB, Belize BZ, Cayman Islands KY, Dominica DM, Grenada GD, Guyana GY, Jamaica JM, Montserrat MS, St. Kitts-Nevis KN, St. Lucia LC, St. Vincent and the Grenadines VC, Trinidad and Tobago TT, Virgin Islands (Br.) VG

South Pacific (982) includes:

Cook Islands CK, Fiji FJ, Kiribati KI, Marshall Islands MH, Federal States of Micronesia FM, Nauru NR, New Caledonia NC, Niue NU, Palau PW, Solomon Islands SB, Tokelau TK, Tonga TO, Tuvalu TV, Vanuatu VU, Western Samoa WS