Yealink — 11 prefixes (MA-L)

Yealink holds 10 MA-L blocks under the newer registrant "YEALINK(XIAMEN) NETWORK TECHNOLOGY CO.,LTD." — 24:9A:D8, 34:97:D7, 44:DB:D2, 64:4F:56, 80:5E:0C, 80:5E:C0, B0:61:A9, C4:FC:22, EC:1D:A9 and F0:16:53 — plus 1 legacy block (00:15:65) under the older "XIAMEN YEALINK NETWORK TECHNOLOGY CO.,LTD" — both map to the same vendor and should be normalized. The company is based in Huli District, Xiamen, Fujian, China. These OUIs appear on IP desk phones (the T-series), conference phones, video endpoints, DECT phones, and headsets. Yealink is one of the most common VoIP desk-phone brands in SMB and enterprise environments, alongside Polycom/Poly and Cisco. For triage, a Yealink OUI almost always identifies a SIP phone in the voice VLAN.

IEEE assignment

10 prefixes → YEALINK(XIAMEN) NETWORK TECHNOLOGY CO.,LTD. + 1 legacy → XIAMEN YEALINK NETWORK TECHNOLOGY CO.,LTD; registered Xiamen, China [Confirmed] — IEEE the IEEE MA-L registry

Registry / block size

MA-L only; 10 blocks under the newer entity (~167.8M) + 1 legacy block (00:15:65) = 11; no MA-M / MA-S entries [Confirmed] — IEEE the IEEE MA-L registry, the IEEE MA-M registry, the IEEE MA-S registry

HQ / country

No.16 Yun Ding North Road, Huli District, Xiamen, Fujian 361015, China (legacy 00:15:65 block: 580 Jiahe Road, Xiamen 361006) [Confirmed] — IEEE MA-L

Company status

active (Yealink Network Technology) [Confirmed] — yealink.com

Device types

IP desk phones, conference phones, video endpoints, DECT phones, headsets [Confirmed] — maclookup.app

Notable products

T-series IP phones, conference/video bars

Verified prefixes (YEALINK(XIAMEN) NETWORK TECHNOLOGY CO.,LTD., all MA-L)

24:9A:D8, 34:97:D7, 44:DB:D2, 64:4F:56, 80:5E:0C, 80:5E:C0, B0:61:A9, C4:FC:22, EC:1D:A9, F0:16:53 [Confirmed] — IEEE the IEEE MA-L registry

Verified prefix (legacy XIAMEN YEALINK NETWORK TECHNOLOGY CO.,LTD)

00:15:65 [Confirmed] — IEEE the IEEE MA-L registry

Special note

Two registrant strings (old "Xiamen Yealink…" vs new "Yealink(Xiamen)…") both map to the same vendor; note that 00:15:65 belongs to the OLD string, not the new one. [Confirmed] — IEEE the IEEE MA-L registry

Security context

a July 2021 third-party report (Chain Security) alleged insecure defaults and unexpected China-hosted data transmission on the T54W phone and the YDMP management platform; Yealink rebutted it (publicly traded, no government ownership, on-premises YDMP, GDPR-certified US/EU-hosted cloud, cited firmware issues patched). Recorded as a sourced, attributed dispute — no specific CVE was named, and the residual concern is policy-level rather than a published vulnerability. [Confirmed that the dispute occurred; claims on both sides as-stated] — teledynamics.com, forescout.com, yealink.com/en/trust-center/security

Related vendors

none significant

Analyst note

One of the most common VoIP desk-phone brands in SMB/enterprise alongside Polycom and Cisco; a Yealink OUI almost always identifies a SIP phone in the voice VLAN.