Agile TV Corporation — 00:05:57 (MA-L)
Summary
- // what this is
- Agile TV is registered to MAC prefix
00:05:57in the IEEE OUI database. When a device's MAC address begins with00:05:57, that block was registered by Agile TV — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- This OUI is a single dedicated /24 held by one registrant, not a shared IEEE base, so no shared-base disclaimer applies. Any device fingerprinting should name 'Agile TV Corporation / Promptu Systems' cable voice-search hardware from the early-to-mid 2000s, and should explicitly avoid implying any connection to the current 'AgileTV' (ex-Agile Content) OTT/TVaaS vendor, which is a separate, unrelated company that adopted a similar brand name in 2025.
About this vendor.
A MAC address starting with 00:05:57 belongs to Agile TV Corporation, a Menlo Park, California company whose registered hardware block traces to cable set-top boxes and DVRs built around a voice-activated program search feature marketed under the product name Promptu.
Agile TV Corporation was founded in April 2000 and raised outside funding — roughly $15 million reported in 2003 and around $22 million by 2005 — to build voice search and navigation technology for cable operators. The company later renamed itself Promptu Systems Corporation, an entity that independent company-profile trackers still list as active.
This historical registrant should not be confused with the present-day brand also called AgileTV (agiletv.com). That company is a 2025 rebrand of Agile Content, a Spain-based TV-as-a-service vendor founded in 2007. The two share only a coincidental name; no merger or acquisition trail links them.
IEEE's own oui.txt could not be fetched directly during research (the request was blocked), so the registrant name and address rest on the IEEE registry snapshot plus two independent third-party mirrors that agree with each other. Only one OUI block was found under this registrant's name, and no CVE or malware association turned up in an August 2026 web search.
- Device class
- Cable/DVR set-top box hardware and software for voice-activated program search (product: Promptu), circa early-to-mid 2000s
- Successor entity
- Promptu Systems Corporation (renamed; still listed active by third-party company-profile trackers)
- Not to be confused with
- present-day "AgileTV" (agiletv.com), a 2025 rebrand of Agile Content — unrelated company, coincidental name overlap
- IEEE assignment
- 00:05:57 → Agile TV Corporation, registered Menlo Park, CA, US [Confirmed] — the IEEE MA-L registry 000557
- Registry / block size
- MA-L (24-bit OUI); no MA-M or MA-S entries found for this registrant [Confirmed] — the IEEE MA-L registry 000557
- HQ / registered address
- 333 Ravenswood Ave., Menlo Park, CA 94025, US [Confirmed] — the IEEE MA-L registry 000557; corroborated by maclookup.app and udger.com
- Company status
- Original entity appears renamed to Promptu Systems Corporation, which independent company-profile sites still list as active [Likely] — https://www.cbinsights.com/company/promptu, https://tracxn.com/d/companies/promptu/__ufaHhzgk6IhxINQSh0ydZ8mrqNT5eEgPKIiF8usUos4, https://pitchbook.com/profiles/company/51139-18
- Device types
- Cable/DVR set-top box voice-activated program search hardware and software (product: Promptu), circa early-to-mid 2000s [Likely] — https://venturebeat.com/business/agiletv-raises-15m-for-cable-voice-search/, https://www.cbinsights.com/company/promptu
- Notable products
- Promptu voice-activated program search/navigation platform [Likely] — https://venturebeat.com/business/agiletv-raises-15m-for-cable-voice-search/
- Number of OUI assignments
- One — only block found registered to this company [Likely] — https://maclookup.app/vendors/agile-tv-corp
- Naming disambiguation
- NOT the same company as present-day "AgileTV" (agiletv.com), a 2025 rebrand of Spain-based Agile Content (founded 2007); unrelated corporate lineage, coincidental name overlap [Likely] — https://agiletv.com/agile-content-is-now-agile-tv/, https://www.streamingmedia.com/PressRelease/Agile-Content-is-Now-AgileTV_56434.aspx
- IEEE first-party corroboration
- direct fetch of IEEE's own oui.txt was blocked (HTTP 418); registrant name/address rests on the registry CSV plus two independent third-party mirrors that agree [Likely] — the IEEE MA-L registry 000557, https://maclookup.app/macaddress/000557/history, https://udger.com/resources/mac-address-vendor-detail?name=agile_tv_corporation
- Registration dates
- IEEE publishes no OUI assignment/registration dates; maclookup.app's "Initial Registration: 04 June 2001" / "Last Update: 17 November 2015" are third-party database artifacts, not IEEE facts [Confirmed] — https://maclookup.app/macaddress/000557/history
- Security/CVE association
- none found tying this OUI or Agile TV Corporation/Promptu hardware to any vulnerability or malware, as of an August 2026 web search [Unknown] — sourced null result, no supporting citation available