AS13838 — EMERSON

AS13838 announces 2 IPv4 prefixes covering 9,216 addresses and 0 IPv6 prefixes.

About this network

Most of the college's space belongs to a carrier, under a netname naming a different range.

What it's used for

• A college network. 9,216 addresses across two IPv4 prefixes, three observed BGP neighbours, and no IPv6 announced.

Notable

• 199.94.64.0/19 holds nearly all the space and is registered to a carrier, netname LVLT-ORG-199-92.
• That netname names a range two higher in the second octet than the block it sits on.
• 172.99.212.0/22 is netname EMERSON-US-V4-01, registered to the college, naming the institution, a country, the protocol version and a counter.
• 199.94.87.254 answers as 87-254.dhcp.emerson.edu, carrying the last two octets and marking the address as dynamically assigned.
• Three upstreams serve the campus.

Interesting

• A college announcing a carrier's block as its main range means the space leaves if the contract does. The smaller block the college holds outright is the part that survives a change of provider, and it is a twentieth of the size.
• Marking an address as DHCP in its reverse name tells a reader the machine behind it changes, which is useful for abuse handling and equally useful to anyone deciding which addresses are worth watching.
• Naming the protocol version in a netname reserves room for a second, which has not arrived.

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

Announced prefixes

• 172.99.212.0/22
• 199.94.64.0/19

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS6939 Hurricane Electric LLC
• AS174 Cogent Communications, LLC

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS6939 Hurricane Electric LLC
• AS174 Cogent Communications, LLC

Internet exchanges

• Boston Internet Exchange — Boston, United States