MAC address vendor

Compal Information (Kunshan) Co., Ltd. — 27 prefixes (MA-L)

Primary prefix
00:1B:38
Block
MA-L
Status
Active

Summary

// what this is
Compal Information is registered to MAC prefix 00:1B:38 and 26 more in the IEEE OUI database. When a device's MAC address begins with 00:1B:38, that block was registered by Compal Information — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
// analyst note
OUI identifies the component maker behind a major-brand laptop/wearable/modem, not the brand itself; no CVEs attributed to this entity — keep distinct from CBN when assessing firmware-CVE exposure.
[ 01 ] — Context

About this vendor.

Updated  ·  Confidence: High

Compal Information (Kunshan) Co., Ltd. is the mainland-China manufacturing arm of Compal Electronics, Inc. (Taiwan), the world's second-largest notebook ODM after Quanta and a Fortune Global 500 company. The Kunshan entity holds 27 IEEE MA-L blocks, registered from the Kunshan Export Processing Zone in Suzhou, Jiangsu, China — the registry address drifts across older and newer assignments (variously "NO. 25 / NO. 15, THE 3RD Street" on older blocks, "No.25, Third Avenue, A Zone, Kunshan Comprehensive Free Trade Zone" on newer ones), but all resolve to the same Kunshan, Suzhou, CN 215300 site. Because Compal is a contract design manufacturer, this OUI appears on consumer hardware as the NIC manufacturer identity, not the brand label: the end device is typically a laptop (HP, Dell, Lenovo, Toshiba), a smartwatch or fitness tracker (Fossil, Montblanc, Michael Kors; second-source Apple Watch Series 4), a tablet or smart display, a cable/broadband modem shipped to Liberty Global subsidiaries, or a smart TV. Seeing this vendor on a home or enterprise network is expected and benign — it identifies the component maker behind a major-brand device. The important data-quality caveat: Compal Information (Kunshan) is distinct from Compal Electronics, Inc. (the Taiwan parent, separate OUIs) and from Compal Broadband Networks, Inc. (CBN — a separate Taiwan entity that does carry documented gateway-firmware CVEs). No CVEs are attributed to this Kunshan NIC-vendor entity, and the three should not be conflated.

IEEE assignment
27 prefixes → COMPAL INFORMATION (KUNSHAN) CO., LTD. [Confirmed] — IEEE MA-L (the IEEE MA-L registry local cache)
Registry / block size
MA-L (24-bit OUI); 27 IEEE prefixes (~16M addresses each) [Confirmed] — IEEE the IEEE MA-L registry; maclookup.app. NOTE: IEEE's public OUI data publishes NO assignment/registration date (the IEEE MA-L registry columns are only Registry, Assignment, Organization Name, Organization Address); any "date registered" on third-party tools (e.g. 2007-01-26 first-seen / 2025-10-18 updated on maclookup.app, hwaddress.com) is a database artifact, not an IEEE fact.
HQ / country
Kunshan Export Processing Zone, Kunshan, Suzhou, Jiangsu 215300, CN — registry address varies across blocks ("NO. 25 / NO. 15, THE 3RD Street" on older entries; "No.25, Third Avenue, A Zone, Kunshan Comprehensive Free Trade Zone" on newer) [Confirmed] — IEEE MA-L
Company status
active [Confirmed] — compal.com; en.wikipedia.org/wiki/Compal_Electronics
Parent company
Compal Electronics, Inc. (Taiwan) — TWSE-listed ODM, Fortune Global 500 (#420, 2023 rev. ~$31B, 60,000+ employees); the Kunshan entity is its primary mainland-China manufacturing subsidiary [Confirmed] — en.wikipedia.org/wiki/Compal_Electronics; panjiva.com
Device types
laptops (HP, Dell, Lenovo, Toshiba), smartwatches/fitness trackers (Fossil, Montblanc, Michael Kors; second-source Apple Watch Series 4), tablets/smart displays, cable/broadband modems (Liberty Global), smart TVs, IoT/smart-home appliances
[Confirmed] — robotpoweredhome.com; themescene.tv; en.wikipedia.org/wiki/Compal_Electronics
Industry
contract electronics ODM (original design manufacturer) [Confirmed] — en.wikipedia.org/wiki/Compal_Electronics
Verified sample prefixes (all MA-L)
00:1B:38, 00:23:5A, 1C:39:47, 88:AE:1D, F8:A9:63 [Confirmed] — IEEE MA-L / maclookup.app
MA-M / MA-S registrations
none found in the IEEE MA-M registry or the IEEE MA-S registry — all 27 assignments are MA-L [Confirmed] — IEEE registries (local cache)
Security note
benign component-manufacturer identifier; no CVEs attributed to this entity. Do NOT conflate with Compal Broadband Networks, Inc. (CBN), a separate Taiwan entity that does carry gateway-firmware CVEs (e.g. CBN CH6640E/CG6640E auth bypass).
[Confirmed] — robotpoweredhome.com; cvedetails.com/vendor/14271 (CBN); exploit-db.com/exploits/35075
Website
https://www.compal.com/en-us/ (parent Compal Electronics; no dedicated public site for the Kunshan subsidiary) [Confirmed] — compal.com
Related vendors
Compal Electronics, Inc. (Taiwan parent — separate OUIs); Compal Broadband Networks, Inc. (CBN — separate entity)
Analyst note
a Compal Information (Kunshan) OUI identifies the NIC/component maker, not the brand on the device — treat it as a benign laptop/wearable/modem from a major brand, and keep it distinct from CBN when triaging firmware-CVE exposure.
[ 02 ] — OUI prefixes

Assignments by IEEE.

5 of 27
// registered prefixes5 of 27
  1. 00:1B:38MA-L
  2. 00:23:5AMA-L
  3. 1C:39:47MA-L
  4. 88:AE:1DMA-L
  5. F8:A9:63MA-L
Listing 5 representative prefixes; this vendor holds 27 total assignments.
[ 03 ] — Related

Keep digging.