ResearchIEEE MA-L, MA-M & MA-S · refreshed daily

70:B3:D5:B7:F JSK System

Every MAC address from 70:B3:D5:B7:F0:00 to 70:B3:D5:B7:FF:FF belongs to a block the IEEE assigned to JSK System. Network cards, phones and other devices it makes carry addresses from here.

Who 70:B3:D5:B7:F belongs to

Written 70:B3:D5:B7:F, 70-B3-D5-B7-F or 70B3D5B7F, depending on the system. Look up a full address.

Prefix
70:B3:D5:B7:F/36
Organization
JSK System
Registry
MA-S (36 bits)
Addresses
4,096
First address
70:B3:D5:B7:F0:00
Last address
70:B3:D5:B7:FF:FF
Address type
Globally unique, unicast
Registered address
Wiośniana, 30/32 Łódź PL 93-228

Inside 70:B3:D5

This MA-S block is carved from the 24-bit block 70:B3:D5, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.