AS606

AS606 (SCHAT-AS) is a regional autonomous system registered under ARIN to Schat Communications, a small fixed-wireless and wireless-fiber broadband ISP serving rural communities across California's Eastern Sierra — Bishop, Crowley Lake, Coleville, Lone Pine, Independence, Big Pine, Benton, June Lake, Lee Vining, Bridgeport, and limited service in Mammoth Lakes. ARIN RDAP's top-level autnum registration event places the ASN's allocation on 2014-03-11, a date independently corroborated by bgp.tools and by third-party aggregators bgpview.io and whatismyip.com. The network is a routing stub: it announces one unique IPv4 block, 104.192.88.0/22 (plus its four constituent /24s as overlapping entries), for 1,024 addresses total, and no IPv6 space. CAIDA AS Rank places it at 39,871 with an AS degree of total=1/provider=1/peer=0/customer=0, and RIPEstat/bgp.he.net/bgp.tools agree on a single observed upstream, AS55236 (CBC), with no settlement-free peers and no downstream customers. The operator's own PeeringDB listing declares an Open peering policy with no traffic-ratio or contract requirements, though no IX presence was found. No notable public abuse signal turned up in Spamhaus ASN-DROP, NANOG archives, or general threat-intel searches as of mid-July 2026; a bgp.he.net "announces bogons" banner appears uncorroborated against AS606's actual announced space and is flagged rather than treated as confirmed. ARIN records the registrant as Aaron Schat (handle SCHAT12-ARIN), and BBB records describe the underlying business as operating since 1990 — well before the ASN's own 2014 registration, and describing the parent business rather than AS606 specifically.

Operator

Schat Communications, doing business as Schat.Net (Bishop, CA); sole proprietorship per BBB, one low-confidence third-party directory calls it "Schat Communications LLC" (unverified against a primary CA filing) [Likely] — https://rdap.arin.net/registry/autnum/606, https://www.bbb.org/us/ca/bishop/profile/internet-service/schat-communications-1126-89048264

Country / RIR

US, ARIN [Confirmed] — https://stat.ripe.net/606

Allocated

2014-03-11 (ARIN RDAP autnum top-level registration event, 16:03:42 UTC-4); last changed 2014-03-11, same event, no later autnum-level change (a separate registrant CONTACT-object update on 2025-12-19 is NOT this date)

[Confirmed, corroborated by three angles] — https://rdap.arin.net/registry/autnum/606, https://bgp.tools/as/606

Org status

ARIN status Active/OK; BBB reports the underlying business operating since 1990 as a sole proprietorship owned by Aaron Schat — this predates the ASN itself and describes the parent business, not AS606 specifically [Likely] — https://rdap.arin.net/registry/autnum/606, https://www.bbb.org/us/ca/bishop/profile/internet-service/schat-communications-1126-89048264

Contacts

registrant is an individual, Aaron Schat (ARIN handle SCHAT12-ARIN), Bishop, CA, US; the abuse and technical contacts for Schat Communications are published in the ARIN RDAP record (personal contact details omitted here)

[Confirmed] — https://rdap.arin.net/registry/autnum/606, https://stat.ripe.net/606

Security/abuse context (NEUTRAL, DATED)

not listed on Spamhaus ASN-DROP as of 2026-07-16/17; no NANOG/seclists incident history located; a bgp.he.net "announces bogons" banner is uncorroborated against AS606's actual announced space (104.192.88.0/22 is not in the standard bogon list)

Network & routing

Network type

regional fixed-wireless / wireless-fiber broadband ISP for rural Eastern Sierra CA; also VoIP, web hosting, business network installs; not a transit/backbone network [Confirmed] — https://www.schat.net/internet.php

Size

5 announced IPv4 prefixes (1 unique /22 = 104.192.88.0/22 plus its four constituent /24s as overlapping entries) = 1,024 addresses; 0 IPv6; customer cone = 1 ASN (itself), 5 prefixes, 1,024 addresses [Confirmed] — https://stat.ripe.net/606, https://api.asrank.caida.org/v2/restful/asns/606

Routing/peering

seen by 326/327 RIS v4 peers, 0/322 v6; CAIDA AS degree total=1, provider=1, peer=0, customer=0; sole observed upstream AS55236 (CBC); no settlement-free peers [Confirmed] — https://stat.ripe.net/606, https://bgp.he.net/AS606, https://api.asrank.caida.org/v2/restful/asns/606

Peering policy

Open per the operator's own PeeringDB listing — no traffic-ratio or contract requirement, no IX presence found [Confirmed] — https://www.peeringdb.com/asn/606

RPKI

not evaluated in this run — rpki-validation was skipped (no --prefix supplied); IRR validation (a different check) shows all 5 announced prefixes as valid per bgp.he.net, which does not establish RPKI ROA status [Unknown] — https://bgp.he.net/AS606

Notable usage

small regional last-mile ISP; PeeringDB reports 1 peer and no listed upstream/downstream relationships beyond AS55236; consumer plans reference residential/SMB-scale data caps (e.g. 250GB tier), not carrier-grade traffic [Likely] — https://bgpview.io/asn/606, https://www.schat.net/internet.php

Related ASNs

none found; sole upstream is AS55236 (CBC), already captured under Routing/peering [Confirmed] — https://bgp.he.net/AS606, https://bgp.tools/as/606

Analyst note

single small rural fixed-wireless ISP, routing-stub profile (1 upstream, 0 peers, 0 customers); allocated_date corroborated independently by ARIN RDAP, bgp.tools, and bgpview.io/whatismyip.com (three angles agree on 2014-03-11) — high confidence on the registration date despite the small operator footprint.