Which company owns MAC address prefix E8:E8:75?

MAC address prefix E8:E8:75 is registered to iS5 Communications Inc. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with E8:E8:75 has a network interface built by iS5 Communications Inc..

What is the OUI E8:E8:75?

E8:E8:75 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to iS5 Communications Inc.. It covers every address from E8:E8:75:00:00:00 to E8:E8:75:FF:FF:FF, or 16,777,216 addresses in total. It is also written E8-E8-75.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in E8:E8:75:00:00:00 that is E8:E8:75 — and look that prefix up in the IEEE OUI registry. If the second-lowest bit of the first octet is set, the address is locally administered (a randomized or private MAC), which belongs to no manufacturer and will not resolve; modern phones and laptops use these by default on each network.

Where is iS5 Communications Inc. located?

iS5 Communications Inc. is listed at #1-1815 Meyerside Drive Mississauga Ontario CA L5T 1G3 in the IEEE OUI registry entry for E8:E8:75. This is the address the organization registered with the IEEE, which may differ from its current operating address.

iS5 Communications Inc.

MAC address prefix E8:E8:75 is registered to iS5 Communications Inc. in the IEEE OUI registry. Any device whose MAC address begins with E8:E8:75 has a network interface built by iS5 Communications Inc.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address — it covers every MAC from E8:E8:75:00:00:00 to E8:E8:75:FF:FF:FF.

OUI prefix: E8:E8:75
Hyphen form: E8-E8-75
MAC range: E8:E8:75:00:00:00 – E8:E8:75:FF:FF:FF
Addresses in block: 16,777,216
Organization: iS5 Communications Inc.
Address: #1-1815 Meyerside Drive Mississauga Ontario CA L5T 1G3
Source: IEEE OUI registry

Have a full MAC address? Look it up— we'll also tell you if it's a randomized (private) address rather than a real manufacturer prefix.

Assignment history (2)

The IEEE registry publishes current state only — this is the change record we've kept since we started tracking it daily.

2016-07-29Assigned to "iS5 Communications Inc."
archived source →
2026-07-17Assigned to "iS5 Communications Inc."

Nearby in the registry

The prefixes assigned immediately before and after E8:E8:75:

FAQ

Which company owns MAC address prefix E8:E8:75?: MAC address prefix E8:E8:75 is registered to iS5 Communications Inc. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with E8:E8:75 has a network interface built by iS5 Communications Inc..
What is the OUI E8:E8:75?: E8:E8:75 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to iS5 Communications Inc.. It covers every address from E8:E8:75:00:00:00 to E8:E8:75:FF:FF:FF, or 16,777,216 addresses in total. It is also written E8-E8-75.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in E8:E8:75:00:00:00 that is E8:E8:75 — and look that prefix up in the IEEE OUI registry. If the second-lowest bit of the first octet is set, the address is locally administered (a randomized or private MAC), which belongs to no manufacturer and will not resolve; modern phones and laptops use these by default on each network.
Where is iS5 Communications Inc. located?: iS5 Communications Inc. is listed at #1-1815 Meyerside Drive Mississauga Ontario CA L5T 1G3 in the IEEE OUI registry entry for E8:E8:75. This is the address the organization registered with the IEEE, which may differ from its current operating address.