SIMCom Wireless Solutions Co.,Ltd.
MAC address prefix 38:1C:4A is registered to SIMCom Wireless Solutions Co.,Ltd. in the IEEE OUI registry. Any device whose MAC address begins with 38:1C:4A has a network interface built by SIMCom Wireless Solutions Co.,Ltd.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address — it covers every MAC from 38:1C:4A:00:00:00 to 38:1C:4A:FF:FF:FF.
- OUI prefix
- 38:1C:4A
- Hyphen form
- 38-1C-4A
- MAC range
- 38:1C:4A:00:00:00 – 38:1C:4A:FF:FF:FF
- Addresses in block
- 16,777,216
- Organization
- SIMCom Wireless Solutions Co.,Ltd.
- Address
- Building A,SIM Technology Building,No.633,Jinzhong Road, Shanghai CN 200335
- Source
- IEEE OUI registry
Have a full MAC address? Look it up— we'll also tell you if it's a randomized (private) address rather than a real manufacturer prefix.
Other prefixes from SIMCom Wireless Solutions Co.,Ltd.
SIMCom Wireless Solutions Co.,Ltd. holds 2 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:
Assignment history (2)
The IEEE registry publishes current state only — this is the change record we've kept since we started tracking it daily.
- 2016-07-29Assigned to "SIMCom Wireless Solutions Co.,Ltd."archived source →
- 2026-07-17Assigned to "SIMCom Wireless Solutions Co.,Ltd."
Nearby in the registry
The prefixes assigned immediately before and after 38:1C:4A:
- Intel Corporate38:18:68
- Nokia Corporation38:19:2F
- Seiko Epson Corporation38:1A:52
- Qingdao Intelligent&Precise Electronics Co.,Ltd.38:1B:9E
- Cisco Systems, Inc38:1C:1A
- Hilan Technology CO.,LTD38:1C:23
- Skydio Inc.38:1D:14
- FN-LINK TECHNOLOGY LIMITED38:1D:D9
- Chipsea Technologies(Shenzhen) Corp.38:1E:C7
- IEEE Registration Authority38:1F:26
- Tuya Smart Inc.38:1F:8D
- HUAWEI TECHNOLOGIES CO.,LTD38:20:28
FAQ
- Which company owns MAC address prefix 38:1C:4A?
- MAC address prefix 38:1C:4A is registered to SIMCom Wireless Solutions Co.,Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 38:1C:4A has a network interface built by SIMCom Wireless Solutions Co.,Ltd..
- What is the OUI 38:1C:4A?
- 38:1C:4A is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to SIMCom Wireless Solutions Co.,Ltd.. It covers every address from 38:1C:4A:00:00:00 to 38:1C:4A:FF:FF:FF, or 16,777,216 addresses in total. It is also written 38-1C-4A.
- How do I find the manufacturer of a MAC address?
- Take the first three octets of the address — in 38:1C:4A:00:00:00 that is 38:1C:4A — and look that prefix up in the IEEE OUI registry. If the second-lowest bit of the first octet is set, the address is locally administered (a randomized or private MAC), which belongs to no manufacturer and will not resolve; modern phones and laptops use these by default on each network.
- Where is SIMCom Wireless Solutions Co.,Ltd. located?
- SIMCom Wireless Solutions Co.,Ltd. is listed at Building A,SIM Technology Building,No.633,Jinzhong Road, Shanghai CN 200335 in the IEEE OUI registry entry for 38:1C:4A. This is the address the organization registered with the IEEE, which may differ from its current operating address.
- How many MAC prefixes does SIMCom Wireless Solutions Co.,Ltd. own?
- SIMCom Wireless Solutions Co.,Ltd. holds 2 OUI prefixes in the IEEE registry, of which 38:1C:4A is one. A device made by SIMCom Wireless Solutions Co.,Ltd. could carry a MAC address from any of them.