Which company owns MAC address prefix 34:41:A8?

MAC address prefix 34:41:A8 is registered to ER-Telecom in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 34:41:A8 has a network interface built by ER-Telecom.

What is the OUI 34:41:A8?

34:41:A8 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to ER-Telecom. It covers every address from 34:41:A8:00:00:00 to 34:41:A8:FF:FF:FF, or 16,777,216 addresses in total. It is also written 34-41-A8.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 34:41:A8:00:00:00 that is 34:41:A8 — 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 ER-Telecom located?

ER-Telecom is listed at Ovchinnikovskaya embankment, 20, Building 1 Moscow RU 115324 in the IEEE OUI registry entry for 34:41:A8. This is the address the organization registered with the IEEE, which may differ from its current operating address.

ER-Telecom

MAC address prefix 34:41:A8 is registered to ER-Telecom in the IEEE OUI registry. Any device whose MAC address begins with 34:41:A8 has a network interface built by ER-Telecom. 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 34:41:A8:00:00:00 to 34:41:A8:FF:FF:FF.

OUI prefix: 34:41:A8
Hyphen form: 34-41-A8
MAC range: 34:41:A8:00:00:00 – 34:41:A8:FF:FF:FF
Addresses in block: 16,777,216
Organization: ER-Telecom
Address: Ovchinnikovskaya embankment, 20, Building 1 Moscow RU 115324
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.

2018-12-21Assigned to "ER-Telecom"
archived source →
2026-07-17Assigned to "ER-Telecom"

Nearby in the registry

The prefixes assigned immediately before and after 34:41:A8:

FAQ

Which company owns MAC address prefix 34:41:A8?: MAC address prefix 34:41:A8 is registered to ER-Telecom in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 34:41:A8 has a network interface built by ER-Telecom.
What is the OUI 34:41:A8?: 34:41:A8 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to ER-Telecom. It covers every address from 34:41:A8:00:00:00 to 34:41:A8:FF:FF:FF, or 16,777,216 addresses in total. It is also written 34-41-A8.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 34:41:A8:00:00:00 that is 34:41:A8 — 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 ER-Telecom located?: ER-Telecom is listed at Ovchinnikovskaya embankment, 20, Building 1 Moscow RU 115324 in the IEEE OUI registry entry for 34:41:A8. This is the address the organization registered with the IEEE, which may differ from its current operating address.