The consonantal phonemes are transcribed with the letters p, b, t, d, k, g, c (pronounced /tʃ/), j /d͡ʒ/, h, ng ( /ŋ/), ny /ɲ/, m, n, s /s/, w, l, r /r~ɾ/, and y /j/. Īccording to Müller-Gotama (2001) there are 18 consonants in the Sundanese phonology: /b/, /tʃ/, /d/, /ɡ/, /h/, /dʒ/, /k/, /l/, /m/, /n/, /p/, /r/, /s/, /ŋ/, /t/, /ɲ/, /w/, /j/ however, influences from foreign languages have introduced several additional consonants such as /f/, /v/, /z/ (as in fonem, qur'an, xerox, zakat). Sundanese orthography is highly phonemic (see also Sundanese script). The Pegon script is still used mostly by pesantrens (Islamic boarding school) in West Java and Banten or in Sundanese Islamic literature. The regional government of West Java and Banten are currently promoting the use of Standard Sundanese script ( Aksara Sunda Baku) in public places and road signs. In modern times, most of Sundanese literature is written in Latin.

The Latin script then began to be used after the arrival of Europeans. After the arrival of Islam, the Pegon script is also used, usually for religious purposes. The earliest attested documents of the Sundanese language were written in the Old Sundanese script ( Aksara Sunda Kuno). The language has been written in different writing systems throughout history. Sundanese has several dialects, conventionally described according to the locations of the people: For example, in Lampung, South Sumatra, Jambi, Riau, West Kalimantan, Southeast Sulawesi and even outside the country of Indonesia, such as Taiwan, Japan, Australia and other countries, a significant number of ethnic Sundanese live in areas outside the Pasundan. Along with transmigration and immigration carried out by the Sundanese ethnics, speakers of this language have spread beyond the island of Java. In addition, according to some Sundanese language experts until around the 6th century, the area of speech reached around the Dieng Plateau in Central Java, based on the name 'Dieng' which is considered the name Sundanese (from the origin of the word dihyang which is an Old Sundanese word). Sundanese at that time was used in the fields of state, art, and daily life, many religious books were written in Sundanese and used Old Sundanese script such as the Sanghyang Siksa Kandang Karesian Manuscript, Carita Parahyangan, Amanat Galunggung, and Guru Talapakan. During this period, Sundanese was heavily influenced by the Sanskrit language as seen in the Batu Tapak Kaki Kiri Nyoreang inscription at the time of King Purnawarman, using the Pallava script. Until 1600 AD, Sundanese was the state language in the kingdoms of Salakanagara, Tarumanagara, Sunda, Galuh, and Pajajaran. Many place names in Cilacap are still Sundanese names such as Dayeuhluhur, Cimanggu, Cipari and so on. However, Sundanese is also spoken in the western part of Central Java, especially in Brebes and Cilacap Regency, because these areas were previously under the control of the Galuh Kingdom. Sundanese is mainly spoken on the west side of the island of Java, in an area known as Tatar Sunda ( Pasundan).

Sunderkand in english text