This AS is not currently used to announce prefixes in the global routing table, nor is it used as a visible transit AS.
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS3900 77 More Specifics 87 Total Advertisements TEXASNET-ASN, US
64.9.129.0/24 64.9.128.0/18
64.9.132.0/24 64.9.128.0/18
64.9.135.0/24 64.9.128.0/18
64.9.151.0/24 64.9.128.0/18
64.9.152.0/22 64.9.128.0/18
64.9.160.0/22 64.9.128.0/18
64.9.160.0/24 64.9.128.0/18
64.9.165.0/24 64.9.128.0/18
64.9.167.0/24 64.9.128.0/18
64.9.168.0/22 64.9.128.0/18
64.9.172.0/24 64.9.128.0/18
142.75.0.0/24 142.75.0.0/16
142.75.2.0/24 142.75.0.0/16
142.75.3.0/24 142.75.0.0/16
168.245.159.0/24 168.245.158.0/23
206.127.0.0/24 206.127.0.0/19
206.127.2.0/24 206.127.0.0/19
206.127.4.0/24 206.127.0.0/19
206.127.6.0/24 206.127.0.0/19
206.127.27.0/24 206.127.0.0/19
206.127.31.0/24 206.127.0.0/19
207.207.2.0/24 207.207.0.0/18
207.207.3.0/24 207.207.0.0/18
207.207.10.0/24 207.207.0.0/18
207.207.18.0/24 207.207.0.0/18
207.207.23.0/24 207.207.0.0/18
207.207.25.0/24 207.207.0.0/18
207.207.29.0/24 207.207.0.0/18
207.207.30.0/24 207.207.0.0/18
207.207.33.0/24 207.207.0.0/18
207.207.38.0/24 207.207.0.0/18
207.207.39.0/24 207.207.0.0/18
207.207.47.0/24 207.207.0.0/18
207.207.49.0/24 207.207.0.0/18
207.207.51.0/24 207.207.0.0/18
207.207.55.0/24 207.207.0.0/18
207.207.59.0/24 207.207.0.0/18
209.99.8.0/24 209.99.0.0/17
209.99.13.0/24 209.99.0.0/17
209.99.18.0/23 209.99.0.0/17
209.99.24.0/21 209.99.0.0/17
209.99.29.0/24 209.99.0.0/17
209.99.31.0/24 209.99.0.0/17
209.99.32.0/21 209.99.0.0/17
209.99.44.0/24 209.99.0.0/17
209.99.46.0/24 209.99.0.0/17
209.99.48.0/24 209.99.0.0/17
209.99.49.0/24 209.99.0.0/17
209.99.52.0/24 209.99.0.0/17
209.99.53.0/24 209.99.0.0/17
209.99.55.0/24 209.99.0.0/17
209.99.69.0/24 209.99.0.0/17
209.99.74.0/24 209.99.0.0/17
209.99.80.0/22 209.99.0.0/17
209.99.84.0/22 209.99.0.0/17
209.99.85.0/24 209.99.0.0/17
209.99.87.0/24 209.99.0.0/17
209.99.88.0/22 209.99.0.0/17
209.99.88.0/24 209.99.0.0/17
209.99.92.0/22 209.99.0.0/17
209.99.106.0/24 209.99.0.0/17
209.99.127.0/24 209.99.0.0/17
216.166.16.0/24 216.166.0.0/17
216.166.17.0/24 216.166.0.0/17
216.166.18.0/24 216.166.0.0/17
216.166.20.0/24 216.166.0.0/17
216.166.25.0/24 216.166.0.0/17
216.166.26.0/24 216.166.0.0/17
216.166.27.0/24 216.166.0.0/17
216.166.32.0/20 216.166.0.0/17
216.166.43.0/24 216.166.0.0/17
216.166.45.0/24 216.166.0.0/17
216.166.52.0/24 216.166.0.0/17
216.166.81.0/24 216.166.0.0/17
216.166.82.0/24 216.166.0.0/17
216.166.83.0/24 216.166.0.0/17
216.166.84.0/22 216.166.0.0/17
Prefixes added and withdrawn by this origin AS in the past 7 days.
+ 104.244.28.0/22 Announced
+ 142.75.0.0/24 Announced
+ 142.75.2.0/24 Announced
+ 142.75.3.0/24 Announced
+ 192.33.146.0/24 Announced
+ 198.180.200.0/24 Announced
+ 206.127.27.0/24 Announced
+ 207.207.2.0/24 Announced
+ 207.207.39.0/24 Announced
+ 209.99.84.0/22 Announced
+ 209.99.88.0/24 Announced
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: +1-866-229-5151
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.
#