AS40321 — ESB - Emigrant Bank

AS40321 announces 3 IPv4 prefixes covering 1,536 addresses and 0 IPv6 prefixes.

About this network

The AS handle ESB is operated by Emigrant Bank.

What it's used for

• The address space carries internal corporate infrastructure, evidenced by netnames EMIGRANT-BANK, UU-65-198-73-D12, and VZ-MGRNTSVNGSBNK-1, and reverse DNS entries pointing to static.emigrant.com.
• The network announces 1536 IPv4 addresses across 3 prefixes with only 2 observed neighbours, indicating a small, self-contained internal estate rather than a transit or access network.
• Traffic from this AS consists of office workers, internal systems, and web/API endpoints for the bank's operations, consistent with its role as a privately held commercial bank headquartered in New York City.

Notable

• Registrants align with the announcer, listing Emigrant Bank and Emigrant Savings Bank across the announced prefixes.
• The operator was formerly known as Emigrant Savings Bank before being rebranded to Emigrant Bank.
• The inventory consists of three distinct IPv4 prefixes with no IPv6 announcements, reflecting a segmented internal corporate address space.

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

Announced prefixes

• 65.198.73.0/24
• 68.163.112.0/24
• 206.53.4.0/22

Upstream networks

• AS54004 Cablevision Lightpath LLC
• AS701 Verizon Business

Adjacent networks

• AS54004 Cablevision Lightpath LLC
• AS701 Verizon Business

Routing security

• RPKI: 1 valid, 0 invalid and 2 not-found announcements; 1 ROAs.
• ASPA: none published.
• IRR: 67% of announcements registered; 2 route objects.
• Listed in as-sets: AS6128:AS-CUSTOMERS.