Rohde&Schwarz Topex SA (DC:44:27:D0:00:00 /28)

Rohde&Schwarz Topex SA MA-M

MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.

PrefixDC:44:27:D0:00:00 /28

Vendor address71th-73th Nicolae Caramfil street, 2nd floor, 1th district Bucuresti Romania RO 014142

Block rangeDC:44:27:D0:00:00– DC:44:27:DF:FF:FF

Address capacity1,048,576

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 →

Example addresses in this block

DC:44:27:D0:00:00 DC:44:27:D7:FF:FF DC:44:27:DF:FF:FF

Other blocks registered to Rohde&Schwarz Topex SA

00:50:C2:40:30:00 /36 IAB 00:50:C2:85:50:00 /36 IAB 00:50:C2:92:A0:00 /36 IAB 00:50:C2:9E:C0:00 /36 IAB 00:50:C2:BF:A0:00 /36 IAB 00:50:C2:C9:E0:00 /36 IAB 00:50:C2:D4:70:00 /36 IAB 00:50:C2:DD:30:00 /36 IAB 00:50:C2:E2:A0:00 /36 IAB 00:50:C2:E4:B0:00 /36 IAB 00:50:C2:EA:D0:00 /36 IAB 00:50:C2:EE:40:00 /36 IAB