Sercomm Philippines Inc. — 8 prefixes (MA-L) + 2 prefixes (MA-M)

A MAC address beginning with a Sercomm Philippines Inc. prefix belongs to Sercomm Philippines Inc., typically seen on ISP-provisioned broadband customer-premises equipment — cable modems, fiber ONTs/gateways, Wi-Fi routers, and 4G/5G fixed-wireless routers. The organization holds 8 IEEE MA-L blocks and 2 MA-M blocks registered to "SERCOMM PHILIPPINES INC" at a Calamba City, Laguna facility.

Sercomm Philippines Inc. is the Philippine manufacturing/assembly subsidiary of publicly traded Sercomm Corporation (TWSE: 5388), a Taiwan-headquartered ODM of broadband and telecom hardware. The subsidiary was incorporated 22 March 2019 and operates a roughly 20,000 sqm plant in Carmelray Industrial Park 1, Calamba, reported to employ several thousand workers.

Parent Sercomm is a known second-source ODM for major ISP-branded gateways, including reported supply relationships with Comcast Xfinity, Charter Spectrum, and T-Mobile Home Internet's 5G router line. This is device-class corroboration for the likely deployment context rather than proof that this specific Philippine-registered block maps to any one carrier SKU.

An existing DONE entry for the consolidated "vendor-sercomm" family independently notes "SERCOMM PHILIPPINES INC (~8 blocks)" as a related manufacturing entity, corroborating the MA-L count found here from the registry angle. No vendor-specific CVE or security advisory was verified in this research pass — that stays Unknown rather than assumed.

IEEE assignment

8 MA-L prefixes + 2 MA-M prefixes → SERCOMM PHILIPPINES INC, registered Calamba City, Laguna, PH [Confirmed] — the IEEE MA-L registry, the IEEE MA-M registry

Registry / block sizes

MA-L (24-bit, 8 blocks) + MA-M (28-bit, 2 blocks) [Confirmed] — the IEEE MA-L registry, the IEEE MA-M registry

HQ / country

Lot 1 & 5, Phase 1, Filinvest Technology Park 1, Brgy. Punta, Calamba City, Laguna, PH (registry address) [Confirmed] — the IEEE MA-L registry

Company status

active; Philippine subsidiary of Sercomm Corporation (TWSE: 5388), incorporated 22 March 2019 [Likely] — https://www.dnb.com/business-directory/company-profiles.sercomm_philippines_inc.782cd7dc8af6e1be7e5c595bedd4b28a.html, https://www.emis.com/php/company-profile/PH/Sercomm_Philippines_Inc_en_14622428.html

Device types

DOCSIS cable modems, fiber/PON ONTs, DSL/FTTH gateways, Wi-Fi routers, mesh repeaters, 4G/5G FWA routers, small cells, IoT/IP cameras (parent Sercomm's product line) [Likely] — https://www.sercomm.com/en

ISP customer corroboration

parent Sercomm reported as ODM for Comcast Xfinity, Charter Spectrum, T-Mobile Home Internet [Likely] — https://www.senki.org/us-isp-cpe-supply-chain/, https://www.rvmobileinternet.com/t-mobile-home-internet-adds-sercomm-router-with-antenna-ports-and-an-optional-external-5g-antenna/

Verified sample prefixes (MA-L)

A4:01:DE, BC:96:E5, 14:7D:05, 64:67:72, 74:37:5F, AC:46:A7, 94:F7:BE, 88:03:48 [Confirmed] — the IEEE MA-L registry

Verified sample prefixes (MA-M)

E0382DB, 0825321 [Confirmed] — the IEEE MA-M registry

Registration dates

Unknown / not published by IEEE; no date recorded or fabricated for any block [Confirmed] — n/a

Cross-reference

existing DONE entry vendor-sercomm.md notes "SERCOMM PHILIPPINES INC (~8 blocks)" as a related manufacturing entity, corroborating the MA-L count [Confirmed] — /mac/vendor/sercomm/

Security context

no vendor-specific CVE/advisory verified this pass [Unknown] — n/a

Related vendors

Sercomm Corporation (parent, Taiwan, TWSE: 5388); vendor-sercomm (consolidated family entry)

Analyst note

substantive company entry — identifiable subsidiary with independent press/business-directory coverage and 10 total OUI blocks; not a bare single-OUI registration.