AS13443 — LINKEDIN

AS13443 announces 13 IPv4 prefixes covering 4,608 addresses and 11 IPv6 prefixes.

About this network

The only address that answered reverse DNS answered with an acquired company's domain.

What it's used for

• A professional networking company's network. 4,608 addresses across thirteen IPv4 prefixes, sixty-nine IPv6 prefixes, and thirteen observed BGP neighbours.

Notable

• Five /24s are netname LinkedIn and two /23s are netname LINKEDIN-17, registered as Linkedin.
• 45.42.64.0/22 is netname LYNDA-NTWK1, registered to the parent company.
• Two /24s are netname NTTA-128-242, registered to a transit provider with a second name, VIPAR.
• 216.52.16.0/24 is netname UG-210, registered to a different network company entirely.
• Eighteen addresses were queried and one answered, as 45-42-66-254.fwd.lynda.com.

Interesting

• An online training company bought years ago still owns its block in the registry and its domain in DNS. Netnames and reverse zones are the last things anyone changes after an acquisition, because changing them breaks whatever was configured against them.
• Two of the announced blocks are registered to providers rather than to the company announcing them. That is leased or hosted space: the address holder is the vendor, the network origin is the tenant, and only the routing table connects the two.
• Sixty-nine IPv6 prefixes against thirteen IPv4 ones is a network built recently enough that the scarce resource shaped the smaller half.

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

Announced prefixes

• 45.42.64.0/22
• 128.242.95.0/24
• 128.242.116.0/24
• 128.242.181.0/24
• 144.2.22.0/24
• 144.2.226.0/24
• 144.2.229.0/24
• 144.2.233.0/24
• 144.2.237.0/24
• 216.52.16.0/24
• 216.52.18.0/23
• 216.52.20.0/24
• 216.52.22.0/23
• 2405:2300:ff00::/40
• 2620:119:5000::/42
• 2620:119:5041::/48
• 2620:119:5043::/48
• 2620:119:5044::/47
• 2620:119:5053::/48
• 2620:119:5070::/47
• 2620:119:5073::/48
• 2620:119:5074::/47
• 2620:119:50d2::/48
• 2a05:f507::/41

Upstream networks

• AS1299 Arelion Sweden AB
• AS2914 NTT America, Inc.
• AS9498 BHARTI Airtel Ltd.
• AS6461 Zayo Bandwidth
• AS3356 Level 3 Parent, LLC
• AS10913 Unitas Global
• AS11404 Wave Broadband
• AS12179 Unitas Global
• AS14744 Unitas Global
• AS6453 TATA COMMUNICATIONS (AMERICA) INC
• AS14413 LinkedIn Corporation
• AS4755 TATA Communications formerly VSNL is Leading ISP

Downstream networks

• AS65514

Adjacent networks

• AS1299 Arelion Sweden AB
• AS2914 NTT America, Inc.
• AS9498 BHARTI Airtel Ltd.
• AS6461 Zayo Bandwidth
• AS3356 Level 3 Parent, LLC
• AS10913 Unitas Global
• AS11404 Wave Broadband
• AS12179 Unitas Global
• AS14744 Unitas Global
• AS6453 TATA COMMUNICATIONS (AMERICA) INC
• AS14413 LinkedIn Corporation
• AS65514
• AS4755 TATA Communications formerly VSNL is Leading ISP

Internet exchanges

• Seattle Internet Exchange — Seattle, United States