asn.dev

Autonomous system

AS11528 PHOTRONICS

Unclassified APNIC

IPv4 addresses 2.56K 7 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Flagged prefixes 0 none

Summary

Photronics Inc.

United States · AI-generated

enterprise legacy

PHOTRONICS is Photronics Inc., a manufacturer of photomasks — the master

templates used to print circuit patterns onto semiconductor wafers and flat-panel

displays. The AS carries the company's own corporate network.

What it's used for

  • Enterprise connectivity for a global manufacturer: corporate systems, mail, and the customer-facing portals through which chip designers submit mask data to the fabs.
  • RIS sees 10 announced IPv4 prefixes totalling 2,560 addresses, no IPv6, and 8 observed BGP neighbours. Every announcement is a /24. Eight neighbours is more than a single-site enterprise usually needs but nowhere near carrier scale, and it fits a company with manufacturing sites on several continents, each taking local transit while announcing space from the same AS.

Notable

  • Reverse DNS is sparse but first-party and consistent: mailfrom.photronics.com appears on three different blocks (206.220.70.0/24, 198.61.5.0/24, and 199.36.7.0/24), and one host answers as portal-old.photronics.com. Outbound mail relays spread across separate prefixes, plus a superseded customer portal still holding an address, is the ordinary texture of a long-lived corporate network rather than anything hosted or leased.
  • All prefixes register to Photronics Inc. Holder and registrant agree throughout, so the inventory is self-held despite being scattered across 199.36.x, 206.220.x, 198.61.x, and a 192.129.97.0/24 from the old Class C swamp.

Interesting

  • Two ARIN netblock handles are worth a second look. NETBLK-PLABMIL sounds like it could be military space, and it is not: PLAB is Photronics' stock ticker, and the handle is an internal site code on a block whose registered org is plainly Photronics Inc. Handles are frequently internal shorthand that names nobody, and reading them as words is how classifications go wrong. The org field, not the handle, is the thing to trust.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Address space

Summary

Full explorer
CountryNamePrefixes
USUnited States of America7

Registry

Allocation record

via APNIC RDAP
Registry
APNIC
Handle
AS11528
Registry name
PHOTRONICS
Registrant
Photronics Inc.
Abuse contact
corpnet@photronics.com
Registered
1998-09-17
Last changed
2012-02-24
Status
active

Declared

PeeringDB profile

self-reported
Name
Photronics
Scope
Not Disclosed
Traffic ratio
Not Disclosed

PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

No IC3 indicators Nothing from the FBI IC3 feed.

Threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check