# \#16-bit-address

**URL:** https://forums.digi.com/tag/16-bit-address/2561.md

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## [API: unicast using ONLY 16-bit address](https://forums.digi.com/t/api-unicast-using-only-16-bit-address/16001)

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**Author:** [@bogprs](https://forums.digi.com/u/bogprs)\
**Replies:** 4\
**Last updated:** [January 4, 2016, 8:01am UTC](https://forums.digi.com/t/api-unicast-using-only-16-bit-address/16001 "2016-01-04T08:01:33Z")

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Setup: Xbee S2 with API mode Is there a way to send a proper unicast Tx by using only a 16-bit address? (64-bit address unknown, unavailable or simply one does not care about it) Official manual (excerpts below) leads…