10.0.0.40 router login
To open the admin panel, type 10.0.0.40 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.
10.0.0.40 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 documented for 10.0.0.40, and because the address is tied to no particular product, a guessed pair would be meaningless — whatever answers here carries its own credentials. Look for them on the device's label, commonly a sticker on the base or rear panel, in its printed or online manual, or in the documentation supplied by an ISP or IT department for managed hardware. Devices that ship without a preset password normally prompt you to create one during first-run setup, and any credential changed since installation overrides the printed default.
How to log in to your router
Type 10.0.0.40 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 10.0.0.40, 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
If the interface at 10.0.0.40 rejects your credentials, first confirm that you are on the same subnet and that the device is the one you think it is. A factory reset is the last resort: with no vendor known for this address, follow the reset procedure in that device's own manual, often a recessed button held for several seconds while the unit is powered on. The cost is real — a reset clears the entire configuration, including the static address, so the device may reappear on a different IP, and Wi-Fi, VLAN, port-forwarding and account settings have to be rebuilt. Export a configuration backup first if the device is still reachable.
10.0.0.40 is a private IPv4 address inside 10.0.0.0/8, the largest RFC 1918 block: 16,777,216 addresses under a 255.0.0.0 netmask, none of them routable on the public internet. The same address exists simultaneously on countless unrelated networks, so it identifies no location, operator or organisation. The block is common in corporate and campus networks, ISP-managed CPE, carrier-grade equipment, VPN address pools and container and orchestration networks, where it is subnetted far below /8.
In a conventional /24 deployment it falls in 10.0.0.0/24, whose usable host range is 10.0.0.1 to 10.0.0.254, with 10.0.0.255 reserved for broadcast. It is host 40 in that range. Gateways are commonly placed at the first or last usable address, so a device answering here is more often a DHCP lease or a static reservation — a server or virtual machine, a printer, a NAS, a camera, an access point or a management interface — than the router itself.
No specific vendor is known to ship this address as a default gateway. Most people looking it up have seen it in a DHCP client list, an ARP table or a connection log and want to know what is listening on it. Browse to http://10.0.0.40 from a machine on the same subnet, and cross-check the router's client list for the MAC address and hostname behind it.
Whois information for 10.0.0.0/8
# 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: 10.0.0.0 - 10.255.255.255
CIDR: 10.0.0.0/8
NetName: PRIVATE-ADDRESS-ABLK-RFC1918-IANA-RESERVED
NetHandle: NET-10-0-0-0-1
Parent: ()
NetType: IANA Special Use
OriginAS:
Organization: Internet Assigned Numbers Authority (IANA)
RegDate: 1995-06-23
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/10.0.0.0
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 10.0.0.0/24
The 10.0.0.0/24 subnet runs from 10.0.0.1 to 10.0.0.254, with 10.0.0.255 reserved as the broadcast address. These are the addresses in it we hold router login details for.
Most looked up in this subnet
All addresses we cover here
255 addresses in this subnet have a page; the most looked-up are listed here.