AS7127 — SCE

AS7127 announces 6 IPv4 prefixes covering 286,976 addresses and 0 IPv6 prefixes.

About this network

SCE, the network of Southern California Edison, the electric utility serving most of central, coastal and southern California outside Los Angeles city limits. Headquartered in Rosemead, California.

What it's used for

• SCE's own corporate and operational networking: offices, generation and distribution facilities, and the systems that run the grid.
• Announces a small number of very large legacy blocks, including 192.212.0.0/15, 155.13.0.0/16, 163.236.0.0/16 and 192.214.64.0/19, well over a quarter of a million IPv4 addresses.

Notable

• The address space is enormous relative to the number of prefixes and carries essentially no public reverse DNS. That is the fingerprint of a utility: a very large private-facing estate (substations, SCADA-adjacent corporate systems, field and metering infrastructure) with only a thin public edge.
• This is an enterprise network, not a service provider. None of the space is sold to subscribers.

Interesting

• Big US utilities were among the earliest non-academic organisations to obtain large address allocations, since they already ran extensive private data networks for grid operations before the commercial internet existed. The legacy /15 and two /16s here are a relic of that era.

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

Announced prefixes

• 155.13.0.0/16
• 163.236.0.0/16
• 192.212.0.0/15
• 192.214.0.0/18
• 192.214.64.0/19
• 192.214.96.0/24

Upstream networks

• AS19551 Incapsula Inc

Adjacent networks

• AS19551 Incapsula Inc

Routing security

• RPKI: 6 valid, 0 invalid and 0 not-found announcements; 6 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 16 route objects.
• Listed in as-sets: AS-CTBC-CUSTOMERS125, AS-INCAPSULA, AS-INCAPSULA, AS-TELSTRA-INTL-CUSTOMERS, AS-WINDSTREAM-CUST, AS-XO, AS-XO-B, AS19551:AS-IMPERVA.