OUI Lookup

381a52

Seiko Epson Corporation

Manufacturer Information

OUI Prefix
381a52
Manufacturer
Seiko Epson Corporation
Address
2070 Kotobuki Koaka Matsumoto-shi Nagano-ken JP 399-8702
Last updated
6/8/2026

Vendor Statistics

Total prefixes
21
Block type
MA-L
Available addresses
~16 millones

About prefix 381A52

The OUI prefix 381A52 is assigned to Seiko Epson Corporation, based in 2070 Kotobuki Koaka Matsumoto-shi Nagano-ken JP 399-8702 . It is a MA-L type block of 24 bits (first three octets). Allows up to 16 million unique MAC addresses. If you find this prefix on your network, the devices belong to Seiko Epson Corporation.

Other prefixes from Seiko Epson Corporation