All MARC Country Codes
- Albania (aa)
- Alberta (abc)
- Australian Capital Territory (aca)
- Algeria (ae)
- Afghanistan (af)
- Argentina (ag)
- Armenia (Republic) (ai)
- Azerbaijan (aj)
- Alaska (aku)
- Alabama (alu)
- Anguilla (am)
- Andorra (an)
- Angola (ao)
- Antigua and Barbuda (aq)
- Arkansas (aru)
- American Samoa (as)
- Australia (at)
- Austria (au)
- Aruba (aw)
- Antarctica (ay)
- Arizona (azu)
- Bahrain (ba)
- Barbados (bb)
- British Columbia (bcc)
- Burundi (bd)
- Belgium (be)
- Bahamas (bf)
- Bangladesh (bg)
- Belize (bh)
- British Indian Ocean Territory (bi)
- Brazil (bl)
- Bermuda Islands (bm)
- Bosnia and Hercegovina (bn)
- Bolivia (bo)
- Solomon Islands (bp)
- Burma (br)
- Botswana (bs)
- Bhutan (bt)
- Bulgaria (bu)
- Bouvet Island (bv)
- Belarus (bw)
- Brunei (bx)
- California (cau)
- Cambodia (cb)
- China (cc)
- Chad (cd)
- Sri Lanka (ce)
- Congo (Brazzaville) (cf)
- Congo (Democratic Republic) (cg)
- China (Republic : 1949- ) (ch)
- Croatia (ci)
- Cayman Islands (cj)
- Colombia (ck)
- Chile (cl)
- Cameroon (cm)
- Colorado (cou)
- Comoros (cq)
- Costa Rica (cr)
- Connecticut (ctu)
- Cuba (cu)
- Cape Verde (cv)
- Cook Islands (cw)
- Central African Republic (cx)
- Cyprus (cy)
- District of Columbia (dcu)
- Delaware (deu)
- Denmark (dk)
- Benin (dm)
- Dominica (dq)
- Dominican Republic (dr)
- Eritrea (ea)
- Ecuador (ec)
- Equatorial Guinea (eg)
- East Timor (em)
- England (enk)
- Estonia (er)
- El Salvador (es)
- Ethiopia (et)
- Faroe Islands (fa)
- French Guiana (fg)
- Finland (fi)
- Fiji (fj)
- Falkland Islands (fk)
- Florida (flu)
- Micronesia (Federated States) (fm)
- French Polynesia (fp)
- France (fr)
- Terres australes et antarctiques françaises (fs)
- Djibouti (ft)
- Georgia (gau)
- Kiribati (gb)
- Grenada (gd)
- Ghana (gh)
- Gibraltar (gi)
- Greenland (gl)
- Gambia (gm)
- Gabon (go)
- Guadeloupe (gp)
- Greece (gr)
- Georgia (Republic) (gs)
- Guatemala (gt)
- Guam (gu)
- Guinea (gv)
- Germany (gw)
- Guyana (gy)
- Gaza Strip (gz)
- Hawaii (hiu)
- Heard and McDonald Islands (hm)
- Honduras (ho)
- Haiti (ht)
- Hungary (hu)
- Iowa (iau)
- Iceland (ic)
- Idaho (idu)
- Ireland (ie)
- India (ii)
- Illinois (ilu)
- Indiana (inu)
- Indonesia (io)
- Iraq (iq)
- Iran (ir)
- Israel (is)
- Italy (it)
- Côte d'Ivoire (iv)
- Iraq-Saudi Arabia Neutral Zone (iy)
- Japan (ja)
- Johnston Atoll (ji)
- Jamaica (jm)
- Jordan (jo)
- Kenya (ke)
- Kyrgyzstan (kg)
- Korea (North) (kn)
- Korea (South) (ko)
- Kansas (ksu)
- Kuwait (ku)
- Kosovo (kv)
- Kentucky (kyu)
- Kazakhstan (kz)
- Louisiana (lau)
- Liberia (lb)
- Lebanon (le)
- Liechtenstein (lh)
- Lithuania (li)
- Lesotho (lo)
- Laos (ls)
- Luxembourg (lu)
- Latvia (lv)
- Libya (ly)
- Massachusetts (mau)
- Manitoba (mbc)
- Monaco (mc)
- Maryland (mdu)
- Maine (meu)
- Mauritius (mf)
- Madagascar (mg)
- Michigan (miu)
- Montserrat (mj)
- Oman (mk)
- Mali (ml)
- Malta (mm)
- Minnesota (mnu)
- Montenegro (mo)
- Missouri (mou)
- Mongolia (mp)
- Martinique (mq)
- Morocco (mr)
- Mississippi (msu)
- Montana (mtu)
- Mauritania (mu)
- Moldova (mv)
- Malawi (mw)
- Mexico (mx)
- Malaysia (my)
- Mozambique (mz)
- Netherlands Antilles (na)
- Nebraska (nbu)
- North Carolina (ncu)
- North Dakota (ndu)
- Netherlands (ne)
- Newfoundland and Labrador (nfc)
- Niger (ng)
- New Hampshire (nhu)
- Northern Ireland (nik)
- New Jersey (nju)
- New Brunswick (nkc)
- New Caledonia (nl)
- New Mexico (nmu)
- Vanuatu (nn)
- Norway (no)
- Nepal (np)
- Nicaragua (nq)
- Nigeria (nr)
- Nova Scotia (nsc)
- Northwest Territories (ntc)
- Nauru (nu)
- Nunavut (nuc)
- Nevada (nvu)
- Northern Mariana Islands (nw)
- Norfolk Island (nx)
- New York (State) (nyu)
- New Zealand (nz)
- Ohio (ohu)
- Oklahoma (oku)
- Ontario (onc)
- Oregon (oru)
- Mayotte (ot)
- Pennsylvania (pau)
- Pitcairn Island (pc)
- Peru (pe)
- Paracel Islands] (pf)
- Guinea-Bissau (pg)
- Philippines (ph)
- Prince Edward Island (pic)
- Pakistan (pk)
- Poland (pl)
- Panama (pn)
- Portugal (po)
- Papua New Guinea (pp)
- Puerto Rico (pr)
- Palau (pw)
- Paraguay (py)
- Qatar (qa)
- Queensland (qea)
- Québec (Province) (quc)
- Serbia (rb)
- Réunion (re)
- Zimbabwe (rh)
- Rhode Island (riu)
- Romania (rm)
- Russia (Federation) (ru)
- Rwanda (rw)
- South Africa (sa)
- South Carolina (scu)
- South Dakota (sdu)
- Seychelles (se)
- Sao Tome and Principe (sf)
- Senegal (sg)
- Spanish North Africa (sh)
- Singapore (si)
- Sudan (sj)
- Sierra Leone (sl)
- San Marino (sm)
- Saskatchewan (snc)
- Somalia (so)
- Spain (sp)
- Swaziland (sq)
- Surinam (sr)
- Western Sahara (ss)
- Scotland (stk)
- Saudi Arabia (su)
- Sweden (sw)
- Namibia (sx)
- Syria (sy)
- Switzerland (sz)
- Tajikistan (ta)
- Turks and Caicos Islands (tc)
- Togo (tg)
- Thailand (th)
- Tunisia (ti)
- Turkmenistan (tk)
- Tokelau (tl)
- Tasmania (tma)
- Tennessee (tnu)
- Tonga (to)
- Trinidad and Tobago (tr)
- United Arab Emirates (ts)
- Turkey (tu)
- Tuvalu (tv)
- Texas (txu)
- Tanzania (tz)
- Egypt (ua)
- United States Misc. Caribbean Islands (uc)
- Uganda (ug)
- United Kingdom Misc. Islands (uik)
- Ukraine (un)
- United States Misc. Pacific Islands (up)
- Utah (utu)
- Burkina Faso (uv)
- Uruguay (uy)
- Uzbekistan (uz)
- Virginia (vau)
- British Virgin Islands (vb)
- Vatican City (vc)
- Venezuela (ve)
- Virgin Islands of the United States (vi)
- Vietnam (vm)
- Various places (vp)
- Victoria (vra)
- Vermont (vtu)
- Washington (State) (wau)
- Western Australia (wea)
- Wallis and Futuna (wf)
- Wisconsin (wiu)
- West Bank of the Jordan River (wj)
- Wake Island (wk)
- Wales (wlk)
- Samoa (ws)
- West Virginia (wvu)
- Wyoming (wyu)
- Christmas Island (Indian Ocean) (xa)
- Cocos (Keeling) Islands (xb)
- Maldives (xc)
- Saint Kitts-Nevis (xd)
- Marshall Islands (xe)
- Midway Islands (xf)
- Coral Sea Islands Territory (xga)
- Niue (xh)
- Saint Helena (xj)
- Saint Lucia (xk)
- Saint Pierre and Miquelon (xl)
- Saint Vincent and the Grenadines (xm)
- Macedonia (xn)
- New South Wales (xna)
- Slovakia (xo)
- Northern Territory (xoa)
- Spratly Island (xp)
- Czech Republic (xr)
- South Australia (xra)
- South Georgia and the South Sandwich Islands (xs)
- Slovenia (xv)
- No place, unknown, or undetermined (xx)
- Canada (xxc)
- United Kingdom (xxk)
- United States (xxu)
- Yemen (ye)
- Yukon Territory (ykc)
- Zambia (za)