AS889

AS889 is an actively announcing ASN registered to the Deerfield Valley Communications Union District (DVFiber), a municipally-formed community broadband district that operates a fiber-to-the-home network in southern Vermont. It is not dormant: RIPEstat, bgp.he.net, and bgp.tools all agree it currently originates exactly one IPv4 prefix and one IPv6 prefix, both RPKI-valid.

DVFiber is a "Communications Union District," a Vermont municipal-utility-type entity enabled by 2019 state legislation permitting subscriber-funded (not taxpayer-liable) revenue bonds for broadband buildout. The district's own governance page states it was legally organized on 2020-04-09, ahead of its 2022 ASN registration.

ARIN RDAP's autnum object for AS889 carries a top-level registration event dated 2022-06-07, which is recorded here as the ASN's allocation date; the identical timestamp appears as the "last changed" event, meaning no changes have been recorded since. A third-party bgp.he.net page separately displays a "creation date" of November 28, 2022, which conflicts with the RDAP figure; RDAP is treated as authoritative because it is the first-party registry source.

The network announces 23.138.82.0/23 (roughly 512 IPv4 addresses) and 2606:de40::/32, reaching the Internet through two transit providers, AS6939 (Hurricane Electric) and AS174 (Cogent Communications). PeeringDB's record for the operator's org (id 33580) lists a general peering policy of "Open," though no dedicated peering-policy page exists on the operator's own site. CAIDA ranks the ASN 50,119 globally with a singleton customer cone (1 ASN; 1 prefix; 512 addresses).

DVFiber serves roughly 23–24 member towns in Vermont's Windham County (the operator's own pages disagree slightly on the exact count), with live retail fiber service reported in Stamford, Readsboro, Whitingham, Halifax, Marlboro, and parts of Guilford as of the sources reviewed.

Exposure

No notable public abuse, spam, hijack, or botnet association was found for AS889 or its two announced prefixes as of an August 2026 search of NANOG archives, general web search, and threat-intel platform listings.

Verification gap

Direct lookups on Spamhaus's ASN check page and AbuseIPDB's block-check page both returned HTTP 403 to automated fetch, so their clean status rests on absence-in-general-search rather than a confirmed direct read — treated as Unknown, not a confirmed clean bill.

IPv6 routing note

AS889's two upstreams, Cogent (AS174) and Hurricane Electric (AS6939), have a long-documented mutual IPv6 de-peering dispute dating to roughly 2009; dependence on both for transit is a structural single-path risk for IPv6 reachability rather than a security defect specific to DVFiber.

CVE

None found referencing AS889 or DVFiber as of an August 2026 search.

Operator

Deerfield Valley Communications Union District, dba DVFiber (Vermont municipal Communications Union District) [Confirmed] — https://dvfiber.net/about-us/, https://rdap.arin.net/registry/autnum/889

Country / RIR

US (Vermont), ARIN [Confirmed] — https://rdap.arin.net/registry/autnum/889

Allocated

2022-06-07 (ARIN RDAP autnum top-level registration event; identical "last changed" timestamp, i.e. no changes since allocation). A third-party bgp.he.net page shows a conflicting "creation date" of November 28, 2022; RDAP kept as authoritative first-party source

[Confirmed] — https://rdap.arin.net/registry/autnum/889, https://bgp.he.net/AS889

Org status

active; Communications Union District legally organized 2020-04-09 under Vermont's 2019 municipal-broadband enabling legislation, with ASN registered at ARIN on 2022-06-07 [Confirmed] — https://dvfiber.net/governance/, https://rdap.arin.net/registry/autnum/889

Contacts

nse-infrastructure-me@staff.gwi.net; willd@staff.gwi.net; registrant address 418 Woodard Hill Road, Halifax, VT 05358 [Confirmed] — https://rdap.arin.net/registry/autnum/889

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found as of an August 2026 search — not in NANOG archives or general web search; Spamhaus and AbuseIPDB direct check pages blocked automated fetch (HTTP 403) so their negative status is unconfirmed directly

Network & routing

Network type

municipal/community-owned fiber-to-the-home broadband (Communications Union District, formed under 2019 Vermont enabling legislation); PeeringDB classifies it Cable/DSL/ISP [Confirmed] — https://dvfiber.net/about-us/, https://www.peeringdb.com/api/net?asn=889

Size

1 IPv4 prefix, 23.138.82.0/23 (~512 addresses); 1 IPv6 prefix, 2606:de40::/32; CAIDA AS rank 50119; customer cone singleton (1 ASN; 1 prefix; 512 addresses) [Confirmed] — https://stat.ripe.net/AS889, https://bgp.he.net/AS889, https://bgp.tools/as/889, https://api.asrank.caida.org/v2/restful/asns/889

Routing/peering

upstreams AS6939 (Hurricane Electric LLC) and AS174 (Cogent Communications, LLC), both dual-stack; PeeringDB policy_general "Open" for org 33580; no distinct settlement-free peer set beyond the two transit providers was found [Confirmed for upstreams; Likely for policy] — https://bgp.he.net/AS889, https://bgp.tools/as/889, https://www.peeringdb.com/api/net?asn=889

RPKI

both originated prefixes (23.138.82.0/23, 2606:de40::/32) show RPKI-valid origins; none invalid [Confirmed] — https://bgp.he.net/AS889, https://bgp.tools/as/889

Notable usage

community fiber ISP serving roughly 23–24 member towns in Windham County, Vermont (exact count varies slightly across the operator's own pages); live retail service reported in Stamford, Readsboro, Whitingham, Halifax, Marlboro, and parts of Guilford

[Likely] — https://dvfiber.net/about-us/, https://dvfiber.net/governance/

Related ASNs

none identified; AS889 appears to be DVFiber's sole ASN, dual-homed via two transit providers [Unknown] — https://bgp.tools/as/889

Analyst note

small, single-registrant municipal ISP ASN with no shared-base or multi-tenant ambiguity; dual-homed to Cogent and Hurricane Electric, providers with a long-standing IPv6 peering dispute lineage, which is a structural single-path risk rather than an abuse finding.