GOIP Global Services Pvt. Ltd. — 4 prefixes (MA-L)

GOIP Global Services Pvt. Ltd. holds four IEEE MA-L (24-bit OUI) blocks — B8:B7:DB, A8:E2:07, 98:9D:B2, and 74:61:D1 — all registered to the identical organization name and registry address H68, Sector 63, Noida 201301, Uttar Pradesh, IN. GOIP is an India-based telecom and networking distributor headquartered in Noida; it acts as Grandstream's official India distribution partner and owns the Syrotech brand, under which it markets fiber-access and switching hardware (GPON/EPON ONUs and OLTs, PoE and L2+ switches, and SFP/SFP+ transceivers). Devices carrying these four prefixes are therefore most plausibly Syrotech-branded or Grandstream-adjacent networking gear, though no independent device-fingerprint source was found tying real captured MACs from these prefixes to a specific product line, so device-type attribution is inferential rather than corroborated. A critical disambiguation applies here: "GoIP" is also the product-line name of a GSM/VoIP gateway family (GoIP-1/4/8/16/32) made by an entirely different company, Shenzhen DBL Technology Ltd. ("DblTek"). Those DblTek gateways carry documented vulnerabilities (default/weak basic-auth, LFI config disclosure, pre-auth command execution, abused for SIM-box fraud) — those CVEs belong to DblTek's product and must NOT be attributed to this Noida OUI registrant; the name overlap is coincidental. No CVEs or security advisories were found naming GOIP Global Services Pvt. Ltd. or its Syrotech hardware specifically.

IEEE assignment

4 MA-L prefixes → GOIP Global Services Pvt. Ltd. [Confirmed] — IEEE the IEEE MA-L registry

Registry / block size

MA-L (24-bit OUI); 4 IEEE prefixes. NOTE: IEEE's public OUI data publishes NO assignment/registration date (columns are only Registry, Assignment, Organization Name, Organization Address); a "registered 30 Mar 2022" line on maclookup.app is a third-party database artifact, not an IEEE fact.

[Confirmed] — the IEEE MA-L registry; maclookup.app

HQ / country

H68, Sector 63, Noida 201301, Uttar Pradesh, IN (registry address) [Confirmed] — IEEE the IEEE MA-L registry

MA-M / MA-S

none found — no MA-M (the IEEE MA-M registry) or MA-S/oui36 (the IEEE MA-S registry) assignment for this organization [Confirmed] — the IEEE MA-M registry, the IEEE MA-S registry

Company status

active; India telecom/networking distributor, Noida-based; Grandstream official India distribution partner; owns the Syrotech manufacturing brand [Likely] — goip.in, blog.grandstream.com (distribution-partnership press release)

Device types

Syrotech / Grandstream-adjacent networking hardware — GPON/EPON ONUs & OLTs, PoE/L2+ switches, SFP/SFP+ transceivers [Likely; inferred from company portfolio, no device-fingerprint corroboration] — goip.in

Verified prefixes (all MA-L, GOIP Global Services Pvt. Ltd.)

B8:B7:DB, A8:E2:07, 98:9D:B2, 74:61:D1 [Confirmed] — the IEEE MA-L registry

Name-collision warning

"GoIP" is also the DblTek / Shenzhen DBL Technology GSM-VoIP gateway product line (GoIP-1/4/8/16/32) with documented default-credential / LFI / pre-auth-RCE vulnerabilities used in SIM-box fraud. Those belong to DblTek, NOT to this OUI registrant; do not attribute them here.

[Confirmed] — shufflingbytes.com, vulners.com/zdt, dbltek.com

Security context (this vendor)

no CVEs or advisories found naming GOIP Global Services Pvt. Ltd. or Syrotech hardware; generic default-credential category risk for SMB/ISP switches/ONUs applies but is not a documented vendor-specific finding [Unknown]

Analyst note

A globally-administered MAC under one of these four prefixes identifies GOIP-registered (likely Syrotech/Grandstream-distributed) hardware; the superficial "GoIP" name match to DblTek's gateway line is a data trap and must be kept separate.