aws · CHIME_MEETINGS

Amazon Web Services uses 2 prefixes for CHIME_MEETINGS.

Name: Amazon Web Services CHIME_MEETINGS IP ranges
Creator: Amazon Web Services

Last updated 5 Nov 2026 from Amazon Web Services’s own list (file dated 2026-11-04-23-10-01)

Short answer

CHIME_MEETINGS lists the media addresses used by Amazon Chime meetings.

Prefixes

Prefix	Region / location	Service
99.77.128.0/18	GLOBAL	CHIME_MEETINGS
2600:f0f0:4100::/40	GLOBAL	CHIME_MEETINGS

No prefixes added or removed since we started tracking this list. Changes appear here the day after the provider publishes them.

nginx (first 2 prefixes)

allow 99.77.128.0/18;
allow 2600:f0f0:4100::/40;
deny all;

iptables (first 2 prefixes)

iptables -A INPUT -s 99.77.128.0/18 -j ACCEPT
ip6tables -A INPUT -s 2600:f0f0:4100::/40 -j ACCEPT

Generate the full list from the CSV, and refresh it on a schedule: providers add and retire prefixes often.