Tianyi Telecom Terminals Company Limited — 9 prefixes (MA-L)

Tianyi Telecom Terminals Company Limited (天翼电信终端有限公司) holds nine MA-L (24-bit) OUI blocks in the IEEE registry: 38:92:01, 54:08:D3, 64:A4:0E, 70:37:8E, 8C:BE:6F, 98:1E:89, AC:50:EE, D0:5B:CB, and F0:01:6E. Seven of the nine blocks share a single Fengtai District, Beijing filing address (Fenghuang Zui Street), while two blocks — D0:5B:CB and F0:01:6E — were filed from two separate Xicheng District addresses; IEEE publishes no assignment dates, so there is no way to sequence whether this reflects a relocation, a parallel filing office, or something else. Company-level sourcing is thinner: a single Baidu Baike profile (tagged Likely, not Confirmed, since it's the only source found) describes the registrant as a wholly-owned subsidiary of China Telecom Corporation Limited, reportedly founded in 2008, headquartered in Beijing with branch operations across all 31 Chinese provinces, retailing phones, wired and wireless communication terminals, network cards, and wearables under house brands including "Tianyi No.1" alongside licensed Meizu handsets. Holding nine independent OUI assignments is itself a substance signal that distinguishes this registrant from a bare single-block shell registration. One important disambiguation: a similarly-named but legally distinct company, Sichuan Tianyi Comheart Telecom Co., Ltd. (a separate GPON/CPE manufacturer with its own OUI registrations, tracked separately in this registry), must not be conflated with this entity despite the shared "Tianyi" branding.

Entry slug

vendor-tianyi-telecom-terminals [Confirmed]

IEEE assignment

9 MA-L prefixes → "Tianyi Telecom Terminals Company Limited" [Confirmed] — the IEEE MA-L registry

Registry / block class

MA-L only (24-bit); no MA-M (the IEEE MA-M registry) or MA-S (the IEEE MA-S registry) assignments found under any name-spelling variant searched [Confirmed] — the IEEE MA-L registry, the IEEE MA-M registry, the IEEE MA-S registry

Prefixes

38:92:01, 54:08:D3, 64:A4:0E, 70:37:8E, 8C:BE:6F, 98:1E:89, AC:50:EE, D0:5B:CB, F0:01:6E [Confirmed] — the IEEE MA-L registry

Registered addresses

3 distinct Beijing addresses — 7 blocks at "12-19 floors inside 101, Floor 4-33, Building 1, Yard 1, Fenghuang Zui Street, Fengtai District, Beijing"; F0:01:6E at "6/F Changshang Building, No.29 North Xinhua Street, Xicheng District"; D0:5B:CB at "2F, No. 31, Jinrong Street, Xicheng District"

[Confirmed] — the IEEE MA-L registry

Country

CN (China), Beijing [Confirmed] — the IEEE MA-L registry

Allocated date

Unknown/null — IEEE's the IEEE MA-L registry publishes only Registry, Assignment, Organization Name, and Organization Address, no date column; a third-party "date registered" figure would be a database artifact, not an IEEE fact, so none is recorded [Confirmed as to the absence]

IANA reference

not applicable — no IANA field exists in the IEEE MA-L/MA-M/MA-S registry data; left blank rather than fabricated [Confirmed]

Parent / company substance

reportedly a wholly-owned subsidiary of China Telecom Corporation Limited, founded 2008, HQ Beijing, branch operations in all 31 provinces [Likely, single source] — https://baike.baidu.com/item/%E5%A4%A9%E7%BF%BC%E7%94%B5%E4%BF%A1%E7%BB%88%E7%AB%AF%E6%9C%89%E9%99%90%E5%85%AC%E5%8F%B8/8060013

Products

phones, wired/wireless communication terminals, network cards, wearables; house brand "Tianyi No.1"; also sells licensed Meizu phones [Likely, single source] — same Baidu Baike profile as above

Device-type corroboration for these specific 9 OUI blocks

Unknown — no FCC ID or teardown documentation tied to this exact legal entity was located; company-level product claims do not confirm which device lines used which prefix [Unknown]

Distinct-entity caution

Sichuan Tianyi Comheart Telecom Co., Ltd. is a SEPARATE company (GPON/CPE manufacturer) with its own OUI registrations and must not be conflated with this registrant despite similar naming [Confirmed] — https://en.tianyisc.com/, https://device.report/sichuan-tianyi-comheart-telecom

Third-party date check

hwaddress.com's listing for this vendor shows no registration/assigned date for any of the 9 prefixes, consistent with the no-IEEE-date finding above [Confirmed] — https://hwaddress.com/company/tianyi-telecom-terminals-company-limited/

Org status

presumed active — inferred from the absence of any dissolution/wind-down signal in available sources; not independently confirmed via a corporate registry [Unknown]

Security context

no abuse reports, CVEs, or security advisories specific to this vendor's devices found in this pass; absence of evidence, not evidence of absence [Unknown]