# Network Time Protocol Extended Information Extension Field

**URL:** <https://community.nwtime.org/t/network-time-protocol-extended-information-extension-field/333>\
**Category:** Documentation\
**Created:** [February 12, 2026, 3:52pm UTC](https://community.nwtime.org/t/network-time-protocol-extended-information-extension-field/333 "2026-02-12T15:52:15Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Dru](https://sea1.discourse-cdn.com/flex001/user_avatar/community.nwtime.org/dru/32/337_2.png) [@Dru](https://community.nwtime.org/u/Dru)\
**Post date:** [February 12, 2026, 3:52pm UTC](https://community.nwtime.org/t/network-time-protocol-extended-information-extension-field/333/1 "2026-02-12T15:52:15Z")

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> **[Network Time Protocol Extended Information Extension Field](https://www.ntp.org/documentation/ietf/ntp-extended-information-ef/)**
>
> The core network packet used by NTP has no spare bits available for reporting additional state information and no larger data areas available for larger amounts of information. This proposal offers a new extension field that would contain this...