172.16.200.3 router login
To open the admin panel, type 172.16.200.3 into your browser's address bar. If the page does not load, this is probably not the gateway address on your network — see the checks below.
172.16.200.3 router passwords
Where to find them:
- The label on the underside or back of the router — most manufacturers print the default admin username, password and Wi-Fi key there.
- The quick-start card or manual that came in the box.
- Your ISP's account portal, if the device was supplied by them — many set a unique password per line rather than a shared default.
There is no known default credential pair for 172.16.200.3, and none should be inferred from the address itself. Private addresses are reusable by anyone, so a device on this address in one organisation has nothing in common with a device on the same address elsewhere.
Get the defaults from the hardware instead. Manufacturers commonly print them on a sticker on the chassis, include them on a setup card, or list them in the product manual under initial configuration. Where the device is company-managed or virtualised, the credentials usually live in a configuration management system or a password vault rather than on the device.
How to log in to your router
Type 172.16.200.3 into your browser's address bar and press Enter. Type it by hand rather than accepting an autocomplete suggestion, which often fills in a different address you visited before.
If the browser reports that it cannot reach 172.16.200.3, this is not the gateway address on your network. On Windows run ipconfig /all and read the Default Gateway line; on macOS open System Settings, Network, Details, TCP/IP; on Linux run ip route and read the address after "default via".
If the login page loads but rejects your credentials, and you have never changed them, use the defaults printed on the device's label. If they have been changed and nobody knows the new password, a factory reset is the only way back in.
If you do not know the password
Before touching a reset control, check whether the management interface is even the one you expect. Equipment in 172.16 space often exposes a dedicated management address separate from the data path, and a browser timeout may mean a filtering rule rather than a lost password.
A factory reset trades access for configuration. Interface addressing, routing, VLAN tagging, firewall policy and any certificates or keys stored on the device are erased, and 172.16.200.3 itself will most likely not survive the wipe. In a lab that is inconvenient; on a production segment it can take a network offline until the configuration is rebuilt from backup.
172.16.200.3 belongs to 172.16.0.0/12, the middle-sized RFC 1918 allocation. Its netmask is 255.240.0.0 and it covers 1,048,576 addresses spanning 172.16.x.x through 172.31.x.x. The boundaries catch people out: 172.15.x.x and 172.32.x.x are ordinary public space, so only the twelve-bit window is private. This range turns up in mid-size business networks, lab environments, VPN subnets and Docker default bridge networking.
Locally the address belongs to 172.16.200.0/24. Usable hosts run from 172.16.200.1 to 172.16.200.254, with 172.16.200.255 reserved for broadcast. 172.16.200.3 is the third usable host. Low host numbers in a business subnet are often reserved by convention for infrastructure — a secondary gateway in a redundancy pair, a DNS resolver, a hypervisor management interface — rather than handed out dynamically.
Nine other addresses in this same /24 are documented separately, which suggests the subnet is one people encounter repeatedly rather than a one-off. Visitors usually reach this page after finding the address in a routing table, a container inspect output or a firewall rule, and want to establish whether it is private, what its subnet boundaries are, and whether it can be reached from where they are sitting.
Whois information for 172.16.0.0/12
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2024, American Registry for Internet Numbers, Ltd.
#
NetRange: 172.16.0.0 - 172.31.255.255
CIDR: 172.16.0.0/12
NetName: PRIVATE-ADDRESS-BBLK-RFC1918-IANA-RESERVED
NetHandle: NET-172-16-0-0-1
Parent: ()
NetType: IANA Special Use
OriginAS:
Organization: Internet Assigned Numbers Authority (IANA)
RegDate: 1994-03-15
Updated: 2013-08-30
Comment: These addresses are in use by many millions of independently operated networks, which might be as small as a single computer connected to a home gateway, and are automatically configured in hundreds of millions of devices. They are only intended for use within a private context and traffic that needs to cross the Internet will need to use a different, unique address.
Comment:
Comment: These addresses can be used by anyone without any need to coordinate with IANA or an Internet registry. The traffic from these addresses does not come from ICANN or IANA. We are not the source of activity you may see on logs or in e-mail records. Please refer to http://www.iana.org/abuse/answers
Comment:
Comment: These addresses were assigned by the IETF, the organization that develops Internet protocols, in the Best Current Practice document, RFC 1918 which can be found at:
Comment: http://datatracker.ietf.org/doc/rfc1918
Ref: https://rdap.arin.net/registry/ip/172.16.0.0
OrgName: Internet Assigned Numbers Authority
OrgId: IANA
Address: 12025 Waterfront Drive
Address: Suite 300
City: Los Angeles
StateProv: CA
PostalCode: 90094
Country: US
RegDate:
Updated: 2012-08-31
Ref: https://rdap.arin.net/registry/entity/IANA
OrgAbuseHandle: IANA-IP-ARIN
OrgAbuseName: ICANN
OrgAbusePhone: +1-310-301-5820
OrgAbuseEmail: abuse@iana.org
OrgAbuseRef: https://rdap.arin.net/registry/entity/IANA-IP-ARIN
OrgTechHandle: IANA-IP-ARIN
OrgTechName: ICANN
OrgTechPhone: +1-310-301-5820
OrgTechEmail: abuse@iana.org
OrgTechRef: https://rdap.arin.net/registry/entity/IANA-IP-ARIN
Other documented addresses in 172.16.200.0/24
The 172.16.200.0/24 subnet runs from 172.16.200.1 to 172.16.200.254, with 172.16.200.255 reserved as the broadcast address. These are the addresses in it we hold router login details for.
All addresses we cover here
10 addresses in this subnet have a page; the most looked-up are listed here.