AS111

AS111 is a legacy spring-1987 allocation registered under ARIN to Boston University (OrgId BOSU-Z, 881 Commonwealth Avenue, Boston, MA), carrying the handle "BOSTONU-AS" — one of the earliest university ASNs, allocated 1987-05-11 (org record refreshed 2023). Boston University has operated it continuously as its campus production network for roughly 39 years. As of June 2026 it is actively announcing 12 prefixes (11 IPv4 + 1 IPv6, ~133,376 IPv4 addresses), including the historic 128.197.0.0/16 and 168.122.0.0/16 Class B blocks plus IPv6 2620:58::/32, with about 7 observed peers. Its upstreams and peers reflect a classic R&E mix: Cogent (AS174), Lumen/Level 3 (AS3356), Internet2 (AS11164/AS11537), Harvard University (AS10578), and the regional Boston GigaPoP (AS10961). One routing-hygiene note: no RPKI ROAs are published (0 valid originations observed), a minor gap worth flagging. For triage this is legitimate, actively-routed university traffic — clean and low-risk. No notable public abuse signal was found as of June 2026.

Operator

Boston University (ARIN OrgId BOSU-Z, Boston, MA) [Confirmed] — ARIN RDAP via bgp.tools

Country / RIR

US, ARIN [Confirmed]

Allocated

ARIN RDAP RegDate 1987-05-11 (ASN updated 2023-06-07; org record RegDate 2023-04-06) [Confirmed]

Org status

active

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found as of 2026-06-10; clean academic network — bgp.he.net

Network & routing

Network type

research / education (university) [Confirmed]

Size

12 prefixes (11 IPv4 + 1 IPv6; ~133,376 IPv4 addrs) — incl. 128.197.0.0/16, 168.122.0.0/16, 2620:58::/32 — bgp.he.net (2026-06-10)

Routing/peering

active; ~7 observed peers; upstreams/peers Cogent AS174, Lumen AS3356, Internet2 AS11164/AS11537, Harvard AS10578, Boston GigaPoP AS10961 — bgp.he.net

RPKI

none — 0 valid originations observed (no ROAs published) — bgp.he.net

Notable usage

[historical/current] AS111 "BOSTONU-AS" — one of the earliest university ASNs (allocated May 1987); BU's campus production network, peering through the Boston GigaPoP and Internet2 — bu.edu

Related ASNs

AS10961 (Boston GigaPoP), AS10578 (Harvard — peer) [Confirmed]

Analyst note

Encountered as legitimate university traffic; actively routed and low-risk. The absence of RPKI ROAs is a minor routing-hygiene gap worth flagging.