AS20258 — ANALOG-DEVICES - Analog Devices, Inc.

AS20258 announces 18 IPv4 prefixes covering 10,240 addresses and 0 IPv6 prefixes.

About this network

ANALOG-DEVICES is the autonomous system for Analog Devices, Inc.

What it's used for

• The address space carries internal corporate infrastructure, evidenced by the consistent netname ANALOG and registrant Analog Devices, Inc. across all sampled prefixes.
• The AS announces 10,240 IPv4 addresses across 21 prefixes with 11 observed neighbours, a ratio indicative of a large internal corporate estate rather than a transit or access provider.

Notable

• All registrants in the sample match the announcer, consistently listing Analog Devices, Inc. and the netname ANALOG.
• The address inventory is finely subdivided into multiple /22, /23, and /24 blocks within the 137.71.0.0/16 range, reflecting site-by-site segmentation typical of a major corporation.

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

Announced prefixes

• 137.71.45.0/24
• 137.71.46.0/24
• 137.71.54.0/23
• 137.71.114.0/23
• 137.71.116.0/23
• 137.71.162.0/23
• 137.71.164.0/23
• 137.71.170.0/23
• 137.71.172.0/22
• 137.71.177.0/24
• 137.71.181.0/24
• 137.71.183.0/24
• 137.71.192.0/21
• 137.71.220.0/22
• 137.71.226.0/23
• 137.71.230.0/24
• 137.71.246.0/23
• 137.71.248.0/23

Upstream networks

• AS174 Cogent Communications, LLC
• AS7018 AT&T Enterprises, LLC
• AS9498 BHARTI Airtel Ltd.
• AS207044 Enet Telecommunications Networks Limited
• AS4775 Globe Telecoms
• AS702 Verizon Business
• AS132280 Symphony Communication (Thailand) PCL.
• AS46887 Crown Castle Fiber LLC
• AS9299 Philippine Long Distance Telephone Company
• AS45458 SBN-ISP/AWN-ISP and SBN-NIX/AWN-NIX
• AS4755 TATA Communications formerly VSNL is Leading ISP
• AS45820 Tata Teleservices ISP AS

Adjacent networks

• AS174 Cogent Communications, LLC
• AS7018 AT&T Enterprises, LLC
• AS9498 BHARTI Airtel Ltd.
• AS207044 Enet Telecommunications Networks Limited
• AS4775 Globe Telecoms
• AS702 Verizon Business
• AS132280 Symphony Communication (Thailand) PCL.
• AS46887 Crown Castle Fiber LLC
• AS9299 Philippine Long Distance Telephone Company
• AS45458 SBN-ISP/AWN-ISP and SBN-NIX/AWN-NIX
• AS45820 Tata Teleservices ISP AS
• AS4755 TATA Communications formerly VSNL is Leading ISP

Routing security

• RPKI: 0 valid, 0 invalid and 43 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 42% of announcements registered; 31 route objects.
• Listed in as-sets: AS-132280, AS-132876, AS-ATTAP, AS-BTIRE, AS-CCF, AS-CCF-TEST, AS-COMCAST-EDIA, AS-EQUINIX-AP, AS-EQUINIX-ME, AS-EQUINIX-PE, AS-GLOBEINTERNET-CLIENTS, AS-GLOBEINTERNET-CLIENTS, AS-HURRICANE, AS-IIJ, AS-KDDCUSTOMER2, AS-PLDT, AS-RETELIT, AS-RETN-ACTUAL-V4, AS-SBN-IIG, AS-TELSTRA-INTL-CUSTOMERS, AS-TELSTRA-INTL-CUSTOMERS-4637, AS-TRANSIT-GLOBE, AS-TRANSIT-GLOBE, AS-TRANSROUTE-SPEC, AS-VSNL-IN.