Rohde&Schwar
Rohde&Schwarz Topex SA — 22 OUI prefix(es)
Rohde&Schwarz Topex SA — 22 OUI prefix(es)
The table lists address blocks grouped under the Wireshark short name Rohde&Schwar. The registration identifies an organisation, which may differ from the brand of the finished device. Contract manufacturing, third-party wireless modules, acquisitions and historical names can all explain that difference.
Each record includes its prefix length: MA-L uses 24 bits, MA-M 28 bits and MA-S 36 bits. Range endpoints describe the registered block, rather than proving that every address has been assigned to a device. Enter all 12 hexadecimal digits of a MAC to prefer the longest available prefix match.
A match cannot identify a model, owner or physical location, or authenticate a device. Randomised, locally administered and manually changed addresses are unreliable for vendor identification. For inventory, cross-check switch MAC tables, DHCP leases and device serial numbers.
Data comes from Wireshark manuf. Check allocations with the IEEE Registration Authority.Last successful upstream sync: 2026-11-06 15:58 (UTC).
Understanding IEEE address blocks · Troubleshooting unexpected results · Report a data issue
| OUI Prefix | MAC Range |
|---|---|
| 00:50:C2:EE:4/36 | 00:50:C2:EE:40:00 ~ 00:50:C2:EE:4F:FF |
| 00:50:C2:FC:0/36 | 00:50:C2:FC:00:00 ~ 00:50:C2:FC:0F:FF |
| 00:50:C2:D4:7/36 | 00:50:C2:D4:70:00 ~ 00:50:C2:D4:7F:FF |
| 00:50:C2:F5:2/36 | 00:50:C2:F5:20:00 ~ 00:50:C2:F5:2F:FF |
| 00:50:C2:E2:A/36 | 00:50:C2:E2:A0:00 ~ 00:50:C2:E2:AF:FF |
| 00:50:C2:40:3/36 | 00:50:C2:40:30:00 ~ 00:50:C2:40:3F:FF |
| 00:50:C2:E4:B/36 | 00:50:C2:E4:B0:00 ~ 00:50:C2:E4:BF:FF |
| 00:50:C2:BF:A/36 | 00:50:C2:BF:A0:00 ~ 00:50:C2:BF:AF:FF |
| 70:B3:D5:FB:0/36 | 70:B3:D5:FB:00:00 ~ 70:B3:D5:FB:0F:FF |
| 40:D8:55:06:C/36 | 40:D8:55:06:C0:00 ~ 40:D8:55:06:CF:FF |
| 00:50:C2:DD:3/36 | 00:50:C2:DD:30:00 ~ 00:50:C2:DD:3F:FF |
| 70:B3:D5:29:6/36 | 70:B3:D5:29:60:00 ~ 70:B3:D5:29:6F:FF |
| 40:D8:55:19:A/36 | 40:D8:55:19:A0:00 ~ 40:D8:55:19:AF:FF |
| 70:B3:D5:24:3/36 | 70:B3:D5:24:30:00 ~ 70:B3:D5:24:3F:FF |
| 70:B3:D5:18:6/36 | 70:B3:D5:18:60:00 ~ 70:B3:D5:18:6F:FF |
| 00:50:C2:9E:C/36 | 00:50:C2:9E:C0:00 ~ 00:50:C2:9E:CF:FF |
| 00:50:C2:C9:E/36 | 00:50:C2:C9:E0:00 ~ 00:50:C2:C9:EF:FF |
| 70:B3:D5:93:2/36 | 70:B3:D5:93:20:00 ~ 70:B3:D5:93:2F:FF |
| 00:50:C2:85:5/36 | 00:50:C2:85:50:00 ~ 00:50:C2:85:5F:FF |
| 00:50:C2:EA:D/36 | 00:50:C2:EA:D0:00 ~ 00:50:C2:EA:DF:FF |
| 00:50:C2:92:A/36 | 00:50:C2:92:A0:00 ~ 00:50:C2:92:AF:FF |
| DC:44:27:D/28 | DC:44:27:D0:00:00 ~ DC:44:27:DF:FF:FF |