881 (number)

• a prime number
• a Paid Toll Free telephone number prefix in the USA
• the Port of Los Angeles Long Wharf, California State Historic Landmark #881
• the year AD 881 or the year 881 BC
• In astronomy, NGC 881 is an Sc type galaxy in the constellation Cetus.
• A bilingual play on words when text chatting in Mandarin Chinese or bilingually Mandarin Chinese and English. "881" is pronounced ba ba yi in Mandarin, and thus puns on "bye-bye." Probably an elaboration of the similar pun on "88". See 88.
• The international telephone dialing code for the Global Mobile Satellite System