AS77

AS77 is a legacy allocation registered under ARIN to the Johns Hopkins University Applied Physics Laboratory (org JHUAPL, Laurel, MD), a University Affiliated Research Center (UARC) and division of Johns Hopkins University that performs national-security and space research and development. RFC 1166 (1990) lists it as "JHUAPL-AS / Johns Hopkins University," the same holder lineage; JHU/APL was founded in 1942 and is a major Department of Defense and NASA research lab. It is actively announcing four IPv4 prefixes (about 259 /24-equivalents of address space) and no IPv6, with upstreams Comcast (AS33657), Lumen/Level 3 (AS3356), and Hurricane Electric (AS6939) and roughly 32 peers — a live research/academic network. The ARIN ASN RegDate is 1986-05-05 (the org RegDate of 2003-07-15 is a registry refresh). Note that an IPinfo proprietary rank of about #33,088 is not the CAIDA AS Rank. For triage this is a clean, actively-routed research network. No notable public abuse signal was found as of June 2026.

Operator

Johns Hopkins University Applied Physics Laboratory (ARIN OrgId JHUAPL, Laurel, MD) [Confirmed] — ARIN RDAP

Country / RIR

US, ARIN [Confirmed]

Allocated

ARIN ASN RegDate 1986-05-05 (org RegDate 2003-07-15 is a registry refresh) [Confirmed]

Org status

active — jhuapl.edu

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found as of 2026-06-08; clean research network — bgp.tools

Network & routing

Network type

FFRDC / research (UARC, division of Johns Hopkins University; national-security + space R&D; founded 1942) [Confirmed]

Size

4 IPv4 prefixes (~259 /24-equivalents), 0 IPv6 — bgp.tools (2026-06)

Routing/peering

actively announcing; upstreams Comcast AS33657, Lumen AS3356, HE AS6939; ~32 peers; RPKI unknown — bgp.tools

Notable usage

[historical, RFC 1166] AS77 "JHUAPL-AS / Johns Hopkins University." [current] JHU/APL — major DoD/NASA research lab (founded 1942), a University Affiliated Research Center — jhuapl.edu

Related ASNs

none specifically confirmed for this profile (note IPinfo proprietary rank ~#33,088 is NOT CAIDA AS Rank)

Analyst note

A live research/academic network; actively announcing 4 IPv4 prefixes with mainstream upstreams (Comcast/Lumen/HE).