AS13778 — JOHNSON-AND-JOHNSON

AS13778 announces 9 IPv4 prefixes covering 5,120 addresses and 37 IPv6 prefixes.

About this network

Sixty-eight IPv6 announcements against nine IPv4 ones, from a company with only five thousand addresses.

What it's used for

• A pharmaceutical and consumer products company's network. 5,120 addresses across nine IPv4 prefixes, 68 IPv6 prefixes, and ten observed BGP neighbours.

Notable

• The IPv6 announcements outnumber the IPv4 ones by more than seven to one.
• Under 2602:28c the sizes run /35, /43, /45, /48, /47 and /46, falling and then rising again.
• Between 2602:280::/32 and 2602:285::/32 several intervening blocks are never announced.
• Six blocks share netname JNJ and two more are NETBLK-JNJ-CNET.
• Every readable block is registered to the company itself rather than to a carrier.
• Eighteen addresses were queried for reverse DNS and none returned a name.

Interesting

• A corporate network with more IPv6 routes than most regional providers, and a modest IPv4 footprint behind them, is what happens when an enterprise deploys the newer protocol properly and never needed many of the older addresses. The routing table sees a large network; the address count says a small one.
• The gaps between announced IPv6 blocks are space the company holds and does not route, which is the luxury the protocol allows.
• Holding every block in its own name, with no carrier registrant anywhere, is unusual at this size and makes the network portable between the ten upstreams carrying it.

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

Announced prefixes

• 148.177.97.0/24
• 148.177.98.0/24
• 148.177.169.0/24
• 148.177.184.0/22
• 148.177.192.0/23
• 148.177.242.0/24
• 199.65.64.0/24
• 199.65.200.0/21
• 199.65.224.0/24
• 2602:280::/32
• 2602:285::/32
• 2602:286::/31
• 2602:288::/29
• 2602:28c:202a::/47
• 2602:28c:202c::/46
• 2602:28c:2030::/44
• 2602:28c:2040::/42
• 2602:28c:2080::/41
• 2602:28c:2100::/40
• 2602:28c:2200::/39
• 2602:28c:2400::/38
• 2602:28c:2656::/47
• 2602:28c:2658::/48
• 2602:28c:265a::/47
• 2602:28c:265c::/46
• 2602:28c:2660::/43
• 2602:28c:2680::/41
• 2602:28c:2700::/40
• 2602:28c:2800::/41
• 2602:28c:2866::/47
• 2602:28c:2868::/45
• 2602:28c:2870::/44
• 2602:28c:2880::/41
• 2602:28c:2900::/45
• 2602:28c:2908::/45
• 2602:28c:2910::/44
• 2602:28c:2920::/43
• 2602:28c:2940::/42
• 2602:28c:2980::/41
• 2602:28c:2a00::/39
• 2602:28c:2c00::/38
• 2602:28c:3000::/36
• 2602:28c:4000::/34
• 2602:28c:8000::/33
• 2602:28d::/32
• 2602:28e::/31

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS2686 AT&T Enterprises, LLC
• AS3758 SingNet
• AS7018 AT&T Enterprises, LLC
• AS7474 SingTel Optus Pty Ltd
• AS701 Verizon Business
• AS2687 AT&T Enterprises, LLC
• AS46887 Crown Castle Fiber LLC
• AS8220 COLT Technology Services Group Limited
• AS2516 KDDI CORPORATION

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS2686 AT&T Enterprises, LLC
• AS3758 SingNet
• AS7018 AT&T Enterprises, LLC
• AS7474 SingTel Optus Pty Ltd
• AS701 Verizon Business
• AS2687 AT&T Enterprises, LLC
• AS46887 Crown Castle Fiber LLC
• AS8220 COLT Technology Services Group Limited
• AS2516 KDDI CORPORATION