AS5638 — BREWER-SCIENCE

AS5638 announces 1 IPv4 prefixes covering 256 addresses and 0 IPv6 prefixes.

About this network

The corporate network of Brewer Science, Inc., a specialty-materials company in Rolla, Missouri that makes thin films and coatings for semiconductor and microelectronics manufacturing, registered under the handle BREWER-SCIENCE.

What it's used for

• Enterprise connectivity for the company's headquarters, laboratories, and manufacturing operations, along with its public-facing services.

Notable

• A single 256-address block. This is a private manufacturer routing its own space, not a provider selling connectivity.
• ARIN records date the current registration to 2009, so the low AS number is a later reassignment rather than an early-internet allocation.

Interesting

• Brewer Science is best known for anti-reflective coatings used in photolithography, materials that sit several layers deep inside the chip fabrication process rather than in any finished product.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 67.210.180.0/24

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS11976 Fidelity Communication International Inc.

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS11976 Fidelity Communication International Inc.