Cambridge Mobile Telematics, Inc. — 4 prefixes (MA-L)
Summary
- // what this is
- Cambridge Mobile Telematics is registered to MAC prefix
0C:C8:44and 3 more in the IEEE OUI database. When a device's MAC address begins with0C:C8:44, that block was registered by Cambridge Mobile Telematics — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- Real, well-documented telematics/UBI company with a specific BLE hardware product (DriveWell Tag) behind four IEEE MA-L blocks registered to one address.
About this vendor.
A MAC address beginning with 0C:C8:44, 4C:B8:2C, 78:49:46, or BC:86:A5 belongs to Cambridge Mobile Telematics, Inc. — most plausibly a DriveWell Tag, the Bluetooth Low Energy vehicle-telematics accessory shipped by this Cambridge, Massachusetts usage-based-insurance technology company.
The IEEE MA-L registry lists exactly four 24-bit blocks under the registrant name "Cambridge Mobile Telematics, Inc.", all at the same registered address: 314 Main Street Suite 1200, Cambridge, MA 02142, US. No MA-M or MA-S (OUI-36) sub-allocations exist for this registrant.
Cambridge Mobile Telematics (CMT), founded in 2010, builds the DriveWell software platform used by major auto insurers — including State Farm, Progressive, Farmers, Nationwide, and Discovery Insure — to score driving behavior from smartphone sensors. The company received a $350 million strategic investment from TPG and Allianz and describes itself as a "world leader in telematics."
Most of CMT's telematics stack runs as software on a customer's own phone and would not carry a dedicated OUI. The company does ship one documented MAC-bearing hardware accessory, the DriveWell Tag: a windshield-mounted BLE device with an embedded accelerometer that logs drive data and syncs to a paired phone, per its FCC filing and published user manual.
IEEE publishes no assignment or registration date for MAC address blocks. Third-party MAC-lookup aggregators display "registered" dates for these four prefixes (spanning 2015 to 2025); those are aggregator database timestamps, not IEEE-published facts, and are not recorded here.
- IEEE assignment
- 4 MA-L blocks → "Cambridge Mobile Telematics, Inc." — 0C:C8:44, 4C:B8:2C, 78:49:46, BC:86:A5 [Confirmed] — IEEE the IEEE MA-L registry
- Registry / block size
- MA-L (24-bit OUI), 4 prefixes; none present in the MA-M or MA-S (OUI-36) registries [Confirmed] — IEEE the IEEE MA-L registry, the IEEE MA-M registry, the IEEE MA-S registry
- HQ / country
- 314 Main Street Suite 1200, Cambridge, MA 02142, US (IEEE registered address, matching the company HQ) [Confirmed] — IEEE the IEEE MA-L registry, cmtelematics.com
- Company status
- active [Confirmed] — cmtelematics.com
- Device types
- DriveWell Tag (BLE windshield-mounted accelerometer accessory) [Likely] — manuals.plus, device.report, fcc.report (FCC ID 2AFGD000600)
- Notable products
- DriveWell platform (software, phone-sensor based), DriveWell Tag (BLE hardware) [Confirmed] — cmtelematics.com
- Verified sample prefixes
- 0C:C8:44, 4C:B8:2C, 78:49:46, BC:86:A5 [Confirmed] — IEEE the IEEE MA-L registry
- Registration date
- Unknown — the IEEE OUI registry carries no assignment-date column; third-party "registered" dates (2015–2025) for these blocks are aggregator database artifacts and must never be presented as IEEE registration dates [Confirmed] — standards.ieee.org
- Related vendors
- none found [Unknown]
- Analyst note
- company shows real substance — an identifiable operating business, named enterprise insurance customers, a documented BLE hardware product with an FCC filing, and four IEEE-registered OUI blocks — well clear of the single-OUI shell profile. Device-type attribution at the per-prefix level is an inference from the product line, not an IEEE fact.