Shenzhen Toptel Technology Co., Ltd. — 24:26:BA (MA-L)

Shenzhen Toptel Technology Co., Ltd. holds the MA-L block 24:26:BA, an IEEE large-block (24-bit OUI) allocation registered to a Shenzhen, Guangdong-based industrial networking manufacturer. The company is commonly styled "Toputel" on its primary domain (toputel.com) and in official filings — "Toptel" and "Toputel" are alternate romanisations of the same entity, with "Toptel" the brand slug surfaced by MAC-lookup databases. Founded in 2014, Toptel builds B2B and industrial gear rather than consumer hardware: industrial 4G/5G LTE cellular routers and IoT gateways, managed campus and industrial Ethernet switches (Layer 3, PoE, SFP), GPON/EPON OLT and ONU/ONT fibre-access equipment, WLAN access points and AC controllers, industrial edge-computing nodes, and SFP optical transceivers. Stated customers span China Unicom and China Mobile through to industrial verticals (smart factory, State Grid, public security, water management). For OUI work the usual IEEE caveat applies: the IEEE publishes no registration date for MAC/OUI blocks, so any "date registered" surfaced by a third-party lookup (e.g. maclookup.app's 2021-08-23 for 24:26:BA) is a database ingest artifact, not an IEEE-sourced fact, and allocated_date is intentionally left null. Only the single MA-L block was found in this pass; additional blocks may exist under the alternate spelling but were not surfaced.

IEEE assignment

24:26:BA → Shenzhen Toptel Technology Co., Ltd. (MA-L) [Confirmed] — enrichment/registries/oui.csv (IEEE MA-L registry); https://maclookup.app/vendors/shenzhen-toptel-technology-co-ltd

Registry / block size

MA-L (24-bit OUI; ~16.7M addresses). Sole block surfaced for this vendor in maclookup.app's database this pass. [Confirmed] — https://maclookup.app/vendors/shenzhen-toptel-technology-co-ltd

Registered address

Floor 6th, Building C, Guancheng Low-carbon Industrial Park, Guangming District, Shenzhen, Guangdong, CN 518107 [Confirmed; company-page address gives postcode 518106 / Gongming Street — a minor sub-district/postcode variance, same site] — enrichment/registries/oui.csv; https://www.toputel.com/company/about-toputel

Country

CN (Shenzhen, Guangdong) [Confirmed] — enrichment/registries/oui.csv

Allocated date

Unknown — IEEE publishes no registration date for OUI blocks; the 2021-08-23 shown by maclookup.app is a third-party database artifact, not an IEEE fact, and is left null. [Unknown] — https://maclookup.app/vendors/shenzhen-toptel-technology-co-ltd

Company status

active; founded 2014, registered capital ~USD 12M, ~50 employees, ISO 9001 + ISO 14001 certified, >80 national patents [Confirmed] — https://www.toputel.com/company/about-toputel; https://www.tradeindia.com/shenzhen-toptel-technology-co-ltd-35609578/

Name variants

"Shenzhen Toptel Technology Co., Ltd." (brand slug) = "Shenzhen Toputel Technology Co., Ltd." (primary domain romanisation); same entity [Confirmed] — https://www.toputel.com/company/about-toputel; https://www.sztoptel.com/

Device types

industrial 4G/5G LTE cellular routers & IoT gateways (e.g. RG5000-W6M-EA, RG4000 series); managed industrial/campus Ethernet switches (L3/PoE/SFP, e.g. TOP-S5350-54TX-F, TOP-S3220P-28TX); GPON/EPON OLT and ONU/ONT (e.g. ONT1840-W4, ONT1820-W5T); WLAN APs + AC controllers; industrial/edge computers; SFP optical transceivers [Confirmed] — https://www.toputel.com/products/; https://www.toputel.com/products/toptel-gpon-epon-optical-network-terminal-ont1840-w4

Market positioning

B2B / industrial / IoT (smart factory, State Grid, public security, coal mining, water management); telecom operator clients China Unicom and China Mobile; export to Germany, Indonesia, Vietnam. NOT consumer-grade. [Confirmed] — https://www.toputel.com/company/about-toputel; https://www.tradeindia.com/shenzhen-toptel-technology-co-ltd-35609578/

Website

https://www.toputel.com/ (primary); https://www.sztoptel.com/ (secondary/mirror — ECONNREFUSED at fetch, content unverified beyond snippets) [Confirmed primary; Likely mirror] — https://www.toputel.com/company/about-toputel

Security context

no CVEs, KEV entries, or named advisories found for Toptel/Toputel products (NIST NVD, CISA KEV, general search) as of 2026-06-20. Absence is NOT a clean bill of health — small niche-industrial vendors are under-researched in public CVE pipelines. Class-level risks for industrial cellular routers / IoT gateways / GPON ONTs (default-credential exposure, serial/RS232 management surfaces, broadband-targeting campaigns) apply generically, not as Toptel-specific findings. [Likely] — https://nvd.nist.gov/vuln; https://www.cisa.gov/known-exploited-vulnerabilities-catalog

Analyst note

a 24:26:BA OUI on a globally-administered address identifies genuine Toptel/Toputel industrial hardware; absence does not mean "not Toptel" (single block, alternate-spelling blocks may exist). Don't rely on OUI alone for inventory.