This AS is not currently used to announce prefixes in the global routing table, nor is it used as a visible transit AS.
whois: 402603
IANA has recorded AS3900 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS3900\n
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#
ASNumber: 3900
ASName: TEXASNET-ASN
ASHandle: AS3900
RegDate: 2000-08-23
Updated: 2021-11-18
Ref: https://rdap.arin.net/registry/autnum/3900
OrgName: SWITCH, LTD
OrgId: SWITC-2
Address: 7135 South Decatur Blvd
City: Las Vegas
StateProv: NV
PostalCode: 89118
Country: US
RegDate: 2005-02-24
Updated: 2024-11-25
Ref: https://rdap.arin.net/registry/entity/SWITC-2
OrgNOCHandle: ASNOC4-ARIN
OrgNOCName: AS23005 NOC
OrgNOCPhone: +1-702-267-6602
OrgNOCEmail: noc@switch.com
OrgNOCRef: https://rdap.arin.net/registry/entity/ASNOC4-ARIN
OrgTechHandle: ASNET3-ARIN
OrgTechName: AS23005 Netops
OrgTechPhone: +1-866-229-5151
OrgTechEmail: netops@switch.com
OrgTechRef: https://rdap.arin.net/registry/entity/ASNET3-ARIN
OrgAbuseHandle: ASABU2-ARIN
OrgAbuseName: AS23005 Abuse
OrgAbusePhone: +1-702-267-6602
OrgAbuseEmail: abuse@switch.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/ASABU2-ARIN
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#