Template:ISO 15924 code
{{#switch:{{{alpha4|{{ucfirst:{{lc:{{{1|}}}}}}}}}}
| 166 | Adlm = Adlm
| 439 | Afak = Afak
| 239 | Aghb = Aghb
| 338 | Ahom = Ahom
| 160 | Arab = Arab
| 161 | Aran = Aran
| 124 | Armi = Armi
| 230 | Armn = Armn
| 134 | Avst = Avst
| 360 | Bali = Bali
| 435 | Bamu = Bamu
| 259 | Bass = Bass
| 365 | Batk = Batk
| 325 | Beng = Beng
| 258 | Berf = Berf
| 334 | Bhks = Bhks
| 550 | Blis = Blis
| 285 | Bopo = Bopo
| 300 | Brah = Brah
| 570 | Brai = Brai
| 367 | Bugi = Bugi
| 372 | Buhd = Buhd
| 349 | Cakm = Cakm
| 440 | Cans = Cans
| 201 | Cari = Cari
| 358 | Cham = Cham
| 445 | Cher = Cher
| 298 | Chis = Chis
| 109 | Chrs = Chrs
| 291 | Cirt = Cirt
| 204 | Copt = Copt
| 402 | Cpmn = Cpmn
| 403 | Cprt = Cprt
| 220 | Cyrl = Cyrl
| 221 | Cyrs = Cyrs
| 315 | Deva = Deva
| 342 | Diak = Diak
| 328 | Dogr = Dogr
| 250 | Dsrt = Dsrt
| 755 | Dupl = Dupl
| 70 | 070 | Egyd = Egyd
| 60 | 060 | Egyh = Egyh
| 50 | 050 | Egyp = Egyp
| 226 | Elba = Elba
| 128 | Elym = Elym
| 430 | Ethi = Ethi
| 164 | Gara = Gara
| 241 | Geok = Geok
| 240 | Geor = Geor
| 225 | Glag = Glag
| 312 | Gong = Gong
| 313 | Gonm = Gonm
| 206 | Goth = Goth
| 343 | Gran = Gran
| 200 | Grek = Grek
| 320 | Gujr = Gujr
| 397 | Gukh = Gukh
| 310 | Guru = Guru
| 503 | Hanb = Hanb
| 286 | Hang = Hang
| 500 | Hani = Hani
| 371 | Hano = Hano
| 501 | Hans = Hans
| 502 | Hant = Hant
| 127 | Hatr = Hatr
| 125 | Hebr = Hebr
| 410 | Hira = Hira
| 80 | 080 | Hluw = Hluw
| 450 | Hmng = Hmng
| 451 | Hmnp = Hmnp
| 504 | Hntl = Hntl
| 412 | Hrkt = Hrkt
| 176 | Hung = Hung
| 610 | Inds = Inds
| 210 | Ital = Ital
| 284 | Jamo = Jamo
| 361 | Java = Java
| 413 | Jpan = Jpan
| 510 | Jurc = Jurc
| 357 | Kali = Kali
| 411 | Kana = Kana
| 368 | Kawi = Kawi
| 305 | Khar = Khar
| 355 | Khmr = Khmr
| 322 | Khoj = Khoj
| 505 | Kitl = Kitl
| 288 | Kits = Kits
| 345 | Knda = Knda
| 287 | Kore = Kore
| 436 | Kpel = Kpel
| 396 | Krai = Krai
| 317 | Kthi = Kthi
| 351 | Lana = Lana
| 356 | Laoo = Laoo
| 217 | Latf = Latf
| 216 | Latg = Latg
| 215 | Latn = Latn
| 364 | Leke = Leke
| 335 | Lepc = Lepc
| 336 | Limb = Limb
| 400 | Lina = Lina
| 401 | Linb = Linb
| 399 | Lisu = Lisu
| 437 | Loma = Loma
| 202 | Lyci = Lyci
| 116 | Lydi = Lydi
| 314 | Mahj = Mahj
| 366 | Maka = Maka
| 140 | Mand = Mand
| 139 | Mani = Mani
| 332 | Marc = Marc
| 90 | 090 | Maya = Maya
| 265 | Medf = Medf
| 438 | Mend = Mend
| 101 | Merc = Merc
| 100 | Mero = Mero
| 347 | Mlym = Mlym
| 324 | Modi = Modi
| 145 | Mong = Mong
| 218 | Moon = Moon
| 264 | Mroo = Mroo
| 337 | Mtei = Mtei
| 323 | Mult = Mult
| 350 | Mymr = Mymr
| 295 | Nagm = Nagm
| 311 | Nand = Nand
| 106 | Narb = Narb
| 159 | Nbat = Nbat
| 333 | Newa = Newa
| 85 | 085 | Nkdb = Nkdb
| 420 | Nkgb = Nkgb
| 165 | Nkoo = Nkoo
| 499 | Nshu = Nshu
| 212 | Ogam = Ogam
| 261 | Olck = Olck
| 296 | Onao = Onao
| 175 | Orkh = Orkh
| 327 | Orya = Orya
| 219 | Osge = Osge
| 260 | Osma = Osma
| 143 | Ougr = Ougr
| 126 | Palm = Palm
| 263 | Pauc = Pauc
| 15 | 015 | Pcun = Pcun
| 16 | 016 | Pelm = Pelm
| 227 | Perm = Perm
| 331 | Phag = Phag
| 131 | Phli = Phli
| 132 | Phlp = Phlp
| 133 | Phlv = Phlv
| 115 | Phnx = Phnx
| 293 | Piqd = Piqd
| 282 | Plrd = Plrd
| 130 | Prti = Prti
| 103 | Psin = Psin
| 900-949 | 900–949 | Qaaa-qabx | Qaaa–qabx = Qaaa–Qabx
| 900 | Qaaa = Qaaa
| 949 | Qabx = Qabx
| 303 | Ranj = Ranj
| 363 | Rjng = Rjng
| 167 | Rohg = Rohg
| 620 | Roro = Roro
| 211 | Runr = Runr
| 123 | Samr = Samr
| 292 | Sara = Sara
| 105 | Sarb = Sarb
| 344 | Saur = Saur
| 590 | Seal = Seal
| 95 | 095 | Sgnw = Sgnw
| 281 | Shaw = Shaw
| 319 | Shrd = Shrd
| 530 | Shui = Shui
| 302 | Sidd = Sidd
| 180 | Sidt = Sidt
| 318 | Sind = Sind
| 348 | Sinh = Sinh
| 141 | Sogd = Sogd
| 142 | Sogo = Sogo
| 398 | Sora = Sora
| 329 | Soyo = Soyo
| 362 | Sund = Sund
| 274 | Sunu = Sunu
| 316 | Sylo = Sylo
| 135 | Syrc = Syrc
| 138 | Syre = Syre
| 137 | Syrj = Syrj
| 136 | Syrn = Syrn
| 373 | Tagb = Tagb
| 321 | Takr = Takr
| 353 | Tale = Tale
| 354 | Talu = Talu
| 346 | Taml = Taml
| 520 | Tang = Tang
| 359 | Tavt = Tavt
| 380 | Tayo = Tayo
| 340 | Telu = Telu
| 290 | Teng = Teng
| 120 | Tfng = Tfng
| 370 | Tglg = Tglg
| 170 | Thaa = Thaa
| 352 | Thai = Thai
| 330 | Tibt = Tibt
| 326 | Tirh = Tirh
| 275 | Tnsa = Tnsa
| 229 | Todr = Todr
| 299 | Tols = Tols
| 294 | Toto = Toto
| 341 | Tutg = Tutg
| 40 | 040 | Ugar = Ugar
| 470 | Vaii = Vaii
| 280 | Visp = Visp
| 228 | Vith = Vith
| 262 | Wara = Wara
| 283 | Wcho = Wcho
| 480 | Wole = Wole
| 30 | 030 | Xpeo = Xpeo
| 20 | 020 | Xsux = Xsux
| 192 | Yezi = Yezi
| 460 | Yiii = Yiii
| 339 | Zanb = Zanb
| 994 | Zinh = Zinh
| 995 | Zmth = Zmth
| 993 | Zsye = Zsye
| 996 | Zsym = Zsym
| 997 | Zxxx = Zxxx
| 998 | Zyyy = Zyyy
| 999 | Zzzz = Zzzz
| #default={{{default|{{error|Error using {{tlx|ISO 15924 code}}: input "{{{alpha4|{{{1|}}}}}}" not recognized|tag=span}}}}}
}}
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