172.16.16.100 router login
To open the admin panel, type 172.16.16.100 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.
172.16.16.100 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.
No default username and password pair is on record for 172.16.16.100, and none should be assumed. A private address identifies a position on a network, not a product, so the credentials that matter are whichever device currently answers at that address. Check the label or sticker on the equipment itself, the quick-start sheet or manual that shipped with it, or the documentation your ISP or IT department provides for managed hardware. If someone changed the login after installation, the printed defaults will no longer work.
How to log in to your router
Type 172.16.16.100 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 172.16.16.100, 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
No vendor is known to ship this particular address as a default gateway, so there is no single reset procedure to describe; most equipment uses a recessed button held with a paperclip for several seconds while powered on, but confirm the timing in your device's own manual. A factory reset is not free. It commonly clears the Wi-Fi name and password, port forwards, firewall and VLAN rules, static DHCP reservations and any ISP connection credentials, leaving the link down until they are re-entered. Before resetting, identify the device through your DHCP server or ARP table and export a configuration backup if the interface still responds.
172.16.16.100 is a private IPv4 address inside 172.16.0.0/12, the mid-size RFC 1918 range that runs from 172.16.0.0 to 172.31.255.255 under the netmask 255.240.0.0 and holds 1,048,576 addresses. Because the block is private, it is never routed across the public internet and carries no owner, registrant or location; the same address is in use on countless unrelated networks at the same time.
Within that range the address falls in the 172.16.16.0/24 subnet, whose usable hosts run from 172.16.16.1 to 172.16.16.254, with 172.16.16.255 reserved as the broadcast address. It sits at host position 100, well inside the pool that DHCP servers commonly hand out and away from the first- and last-address positions where default gateways are usually configured. On many networks an address here belongs to a server, printer, camera, access point, virtual machine or container rather than to the router itself.
The 172.16 range is common in mid-size business networks, lab environments, VPN subnets and Docker default bridge networks, and it is often mistaken for public space because 172 addresses outside 172.16 through 172.31 are genuinely routable. Most people looking up 172.16.16.100 have found it in a DHCP lease table, an ARP cache or a log entry and want to know what answers there and how to sign in.
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 172.16.16.0/24
The 172.16.16.0/24 subnet runs from 172.16.16.1 to 172.16.16.254, with 172.16.16.255 reserved as the broadcast address. These are the addresses in it we hold router login details for.
All addresses we cover here
52 addresses in this subnet have a page; the most looked-up are listed here.