Registered · Cross-platform

5228 Google Play / FCM

TCP Yes
UDP
SCTP
DCCP

What it is

Google Play services, Firebase/Google Cloud Messaging.

When / why

Android push notifications. Allow outbound from Android fleets.

Protocol status detail

TransportStatusMeaning
TCP Yes Assigned by IANA and standardized, specified, or widely used on this port.
UDP Not applicable for this transport.
SCTP Not applicable for this transport.
DCCP Not applicable for this transport.

Port range

Registered (1024–49151). Assigned by IANA on request; usable without elevated privileges on most systems.

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Firewall rules for port 5228

Copy-ready inbound rules for the active transports. Replace every <source> placeholder with the specific host, subnet, or CIDR that should reach this port.

ufw

sudo ufw allow proto tcp from <source> to any port 5228

Allow TCP 5228 (Google Play / FCM). Replace <source> with the network/host that should reach it.

firewalld

sudo firewall-cmd --permanent --add-rich-rule='rule family="ipv4" source address="<source>" port port="5228" protocol="tcp" accept'

Allow TCP 5228 (Google Play / FCM) from <source>. Run 'firewall-cmd --reload' afterwards.

nftables

nft add rule inet filter input ip saddr <source> tcp dport 5228 accept

Allow TCP 5228 (Google Play / FCM). Assumes table 'inet filter' with an 'input' chain.

iptables

sudo iptables -A INPUT -p tcp -s <source> --dport 5228 -j ACCEPT

Allow TCP 5228 (Google Play / FCM). Persist with iptables-save/netfilter-persistent.

Azure NSG

az network nsg rule create -g <resource-group> --nsg-name <nsg> -n Allow-googleplayfcm-5228 --priority 1000 --access Allow --direction Inbound --protocol TCP --source-address-prefixes <source> --destination-port-ranges 5228

Inbound rule for 5228 (Google Play / FCM). Set <source> to a CIDR; lower priority number = higher precedence.

AWS Security Group

aws ec2 authorize-security-group-ingress --group-id <sg-id> --ip-permissions IpProtocol=tcp,FromPort=5228,ToPort=5228,IpRanges="[{CidrIp=<source-cidr>}]"

Inbound TCP 5228 (Google Play / FCM). Replace <source-cidr> (e.g. 10.0.0.0/16).

GCP firewall

gcloud compute firewall-rules create allow-googleplayfcm-5228 --direction=INGRESS --action=ALLOW --rules=tcp:5228 --source-ranges=<source-cidr> --network=<network>

Ingress rule for 5228 (Google Play / FCM). Scope with --source-ranges and optionally --target-tags.

Windows netsh

netsh advfirewall firewall add rule name="Allow Google Play / FCM 5228/TCP" dir=in action=allow protocol=TCP localport=5228 remoteip=<source>

Inbound TCP 5228 (Google Play / FCM). Set remoteip to a host/subnet; 'any' is discouraged.

Windows PowerShell

New-NetFirewallRule -DisplayName "Allow Google Play / FCM 5228/TCP" -Direction Inbound -Action Allow -Protocol TCP -LocalPort 5228 -RemoteAddress <source>

Inbound TCP 5228 (Google Play / FCM). Replace <source> with a host or subnet.

Rules are generated only for transports marked active for this port. They default to an inbound allow with an explicit source placeholder — never any. Review direction, scope, and rule precedence before applying in production.