ALGORITHMS SOFTWARE PVT. LTD. — MAC Prefix Assignment
Summary
- // what this is
- Algorithms Software PVT is registered to MAC prefix
00:20:21in the IEEE OUI database. When a device's MAC address begins with00:20:21, that block was registered by Algorithms Software PVT — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- RFC 7042 describes 48-bit MAC identifiers and the significance of the Group and Local bits. For the exact prefix 00:20:21, both bits in first octet 00 are zero. The /24 match leaves 24 suffix bits, or 16,777,216 possible suffix values; this is not a device or shipment count. A captured exact prefix match establishes a match to the registry assignment, not device identity or deployment.
About this vendor.
A MAC address beginning 00:20:21 matches an IEEE MA-L assignment registered to ALGORITHMS SOFTWARE PVT. LTD. This identifies the registry record; the supplied evidence does not establish a device type, product, or actual deployment of the prefix. A prefix match alone cannot identify a particular device or its current operator.
The prefix is 24 bits of a 48-bit MAC address, leaving 24 bits for suffix values: 16,777,216 possible values. That is a mathematical range, not a count of devices, shipments, or observed addresses. For this exact prefix, the first octet is 00: its Group bit and Local bit are both zero. Those bits are fixed for an exact 00:20:21 match; changing either bit changes the prefix.
Compare the first three octets to match this MA-L assignment. The supplied records contain no assignment date. They also do not establish the company’s country, industry, products, website, or related vendors, so those details cannot be identified from this evidence.
- Registry assignment
00:20:21is assigned to ALGORITHMS SOFTWARE PVT. LTD. as an MA-L prefix.- Device identification
- Unknown; the evidence does not map this prefix to a device category.
- Matching boundary
- Compare the first 24 bits (three octets); the remaining 24 bits allow 16,777,216 possible suffix values.
- First-octet bits
- For
00:20:21, the Group bit and Local bit are both zero and fixed in an exact prefix match.
- Company
- ALGORITHMS SOFTWARE PVT. LTD. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Prefixes
00:20:21[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Country
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Device types
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Notable products
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Industry
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Website
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Organization status
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Related vendors
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Historic prefix
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv