macadress

Zhone Technologies, Inc.

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix30:4F:75:00:00:00 /24
Vendor addressDASAN Tower 8F, 49 Daewangpangyo-ro644beon-gil Bundang-gu Seongnam-si Gyeonggi-do KR 13493
Country🇰🇷  South Korea
RegisteredOct 17, 2018
Block range30:4F:75:00:00:00– 30:4F:75:FF:FF:FF
Address capacity16,777,216
AdministrationUniversally administered: its prefix comes from a block registered through the IEEE Registration Authority
TransmissionUnicast: addressed to a single device
SourceIEEE Registration Authority

Address capacity is the size of this registered block, not a count of devices actually manufactured or online. Registration identifies the organization holding the block, not a specific device model or unit.

Curious how a prefix like this turns into a full address? See how MAC addresses are structured →

Ownership timeline

  1. Oct 17, 2018 – Dec 16, 2022 DASAN Network Solutions name changed
  2. Dec 16, 2022 – Dec 18, 2022 DZS California Inc. name changed
  3. Dec 18, 2022 – Jul 29, 2025 DZS Inc. name changed
  4. Jul 29, 2025 – present Zhone Technologies, Inc.

Example addresses in this block

30:4F:75:00:00:00 30:4F:75:7F:FF:FF 30:4F:75:FF:FF:FF

Where this block sits

Zhone Technologies, Inc. holds 12 registered blocks in the IEEE registry, ranking #269 of 33,427 organizations by block count.

Other blocks registered to Zhone Technologies, Inc.

00:01:47:00:00:00 /24 MA-L 00:02:71:00:00:00 /24 MA-L 00:18:0C:00:00:00 /24 MA-L 00:30:52:00:00:00 /24 MA-L 00:50:CA:00:00:00 /24 MA-L 00:A0:1B:00:00:00 /24 MA-L 00:E0:DF:00:00:00 /24 MA-L 40:F2:1C:00:00:00 /24 MA-L 9C:65:EE:00:00:00 /24 MA-L CC:6C:52:00:00:00 /24 MA-L D0:96:FB:00:00:00 /24 MA-L