ResearchRouting table, RPKI, IRR & looking glass

AS19901 Brightspeed

AS19901 (BRIGHTSPEED) is registered to Brightspeed in US, through ARIN. It originates 1,322 prefixes in the global routing table.

1,271
IPv4 prefixes
51
IPv6 prefixes
3,038,720
IPv4 addresses
14%
RPKI valid
Registration

Who holds AS19901

Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.

AS number
AS19901
Handle
BRIGHTSPEED
Organization
Brightspeed
Country
US
Registry
ARIN
ASPA
5 providers
WHOIS recordARIN
#
# 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:       19901
ASName:         BRIGHTSPEED
ASHandle:       AS19901
RegDate:        2022-11-07
Updated:        2025-08-12
Ref:            https://rdap.arin.net/registry/autnum/19901


OrgName:        Brightspeed
OrgId:          CHIL-10
Address:        1120 South Tryon Street
Address:        Suite 700
City:           Charlotte
StateProv:      NC
PostalCode:     28203
Country:        US
RegDate:        2022-08-16
Updated:        2026-08-25
Ref:            https://rdap.arin.net/registry/entity/CHIL-10


OrgDNSHandle: BADP-ARIN
OrgDNSName:   Brightspeed ARIN DNS POC
OrgDNSPhone:  +1-833-363-2530 
OrgDNSEmail:  arin-dns@brightspeed.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/BADP-ARIN

OrgRoutingHandle: BARP-ARIN
OrgRoutingName:   Brightspeed ARIN Routing POC
OrgRoutingPhone:  +1-833-363-2530 
OrgRoutingEmail:  arin-routing@brightspeed.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/BARP-ARIN

OrgTechHandle: BATP-ARIN
OrgTechName:   Brightspeed ARIN Tech POC
OrgTechPhone:  +1-833-363-2530 
OrgTechEmail:  arin-tech@brightspeed.com
OrgTechRef:    https://rdap.arin.net/registry/entity/BATP-ARIN

OrgNOCHandle: BANP-ARIN
OrgNOCName:   Brightspeed ARIN NOC POC
OrgNOCPhone:  +1-833-363-2530 
OrgNOCEmail:  arin-noc@brightspeed.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/BANP-ARIN

OrgAbuseHandle: BAAP1-ARIN
OrgAbuseName:   Brightspeed ARIN Abuse POC
OrgAbusePhone:  +1-833-363-2530 
OrgAbuseEmail:  arin-abuse@brightspeed.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/BAAP1-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.
#
Routing

What AS19901 announces

Prefixes originated by AS19901 in the routing table our collectors hold (kept current as routes change), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
1,271
IPv6 prefixes
51
IPv4 addresses
3,038,720 (11,870 /24s)
RPKI valid
198 14%
RPKI invalid
0
RPKI not found
1,124
ROAs naming AS19901
160
With an IRR route object
143 10%
Prefixes

Announced prefixes

Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.

IPv4 (1,271)
9.134.0.0/229.134.4.0/229.134.32.0/229.134.36.0/229.134.40.0/229.134.44.0/229.134.64.0/229.134.68.0/229.134.72.0/229.134.76.0/229.134.80.0/229.134.84.0/229.134.88.0/229.134.92.0/229.134.96.0/229.134.100.0/229.134.128.0/229.134.132.0/229.134.136.0/229.134.160.0/229.134.164.0/229.134.168.0/229.134.172.0/229.134.176.0/229.134.180.0/229.134.184.0/229.134.188.0/229.134.192.0/229.134.196.0/229.134.200.0/229.134.224.0/199.138.0.0/229.138.4.0/229.138.8.0/229.138.12.0/229.138.16.0/229.138.20.0/229.138.24.0/229.138.28.0/229.138.32.0/229.138.36.0/229.138.40.0/229.138.44.0/229.138.48.0/229.138.52.0/229.138.56.0/229.138.60.0/229.138.64.0/189.138.128.0/189.138.192.0/229.138.196.0/229.138.200.0/229.138.204.0/229.138.208.0/229.138.212.0/229.138.216.0/229.138.220.0/229.138.224.0/229.138.228.0/229.138.232.0/229.138.236.0/229.138.240.0/229.138.244.0/229.138.248.0/229.138.252.0/229.139.0.0/189.139.64.0/189.139.128.0/189.139.192.0/229.139.196.0/229.139.200.0/229.139.204.0/229.139.208.0/229.139.212.0/229.139.216.0/229.139.220.0/229.139.224.0/229.139.228.0/229.139.232.0/229.139.236.0/229.139.240.0/229.139.244.0/229.139.248.0/229.139.252.0/229.144.0.0/209.144.18.0/249.144.19.0/249.144.20.0/229.144.24.0/219.144.32.0/239.144.34.0/239.144.36.0/229.144.40.0/219.144.48.0/229.144.52.0/229.144.56.0/219.144.64.0/239.144.66.0/249.144.67.0/249.144.68.0/229.144.72.0/219.144.80.0/219.144.88.0/219.144.96.0/219.144.104.0/229.144.108.0/229.144.112.0/219.144.120.0/229.144.124.0/229.144.128.0/199.144.160.0/219.144.168.0/239.144.170.0/239.144.172.0/229.144.176.0/229.144.180.0/229.144.192.0/229.144.216.0/239.144.218.0/249.144.220.0/23
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IPv6 (51)
2606:5000:1000::/392606:5000:1400::/392606:5000:1c00::/392606:5000:1e00::/392606:5000:2800::/392606:5000:2c00::/392606:5000:3c00::/392606:5000:3e00::/392606:5000:4800::/392606:5000:4e00::/392606:5000:5000::/392606:5000:5200::/392606:5000:5400::/392606:5000:5600::/392606:5000:5800::/392606:5000:5c00::/392606:5000:5e00::/392606:5000:6000::/392607:6c40:1::/482607:6c40:2c00::/442607:6c40:3400::/442607:6c40:5400::/442607:6c40:5800::/442607:6c40:5c00::/442607:6c40:6000::/442607:6c40:6020::/442607:6c40:6040::/442607:6c40:6060::/442607:6c40:6080::/442607:6c40:6400::/442607:6c40:6800::/442607:6c40:c400::/442607:6c40:c420::/442607:6c40:c440::/442607:6c40:c800::/442607:6c40:c820::/442607:6c40:c840::/442607:6c40:d400::/442607:6c40:dc00::/442607:6c40:dc20::/442607:6c40:e400::/442607:6c40:e420::/442607:6c40:e440::/442607:6c40:ec00::/442607:6c40:ec20::/442607:6c40:f000::/442607:6c40:f400::/442607:6c40:f420::/442607:6c40:f440::/442607:6c40:f460::/442607:6c40:f800::/44

RPKI valid   RPKI invalid   no ROA covers it

Upstreams

Who AS19901 buys transit from

Inferred from the AS paths in the RouteViews tables and our own collectors’ feeds, refreshed every 4 hours, most-seen first. 5 upstreams; those marked ASPA are also named in its ASPA.

AS3356 LEVEL3 ASPAAS12129 123NET ASPAAS36086 TELX-LEGACY ASPAAS13335 CLOUDFLARENET ASPAAS49915 MEGAPORT ASPA
Downstreams

Who buys transit from AS19901

None seen: AS19901 does not appear to provide transit to anyone.

ASPA

Provider authorization

AS19901 publishes an ASPA naming these providers. Check a path.

AS3356 LEVEL3AS12129 123NETAS13335 CLOUDFLARENETAS36086 TELX-LEGACYAS49915 MEGAPORT
IRR

Routing registry objects

From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.

Sourceas-nameMaintained by
ALTDBTELX-AS19901MAINT-TELX

Route objects with origin AS19901: ARIN 161 · LEVEL3 8 · ALTDB 6

as-sets that list AS19901 (12)
AS-ALLSTREAM-CLIENTSAS-BRIGHTSPEEDAS-HURRICANEAS-HURRICANEV6AS-I123AS-LUMEN-CUSTOMERS-ASNSAS-ROGERS:AS-CUSTOMERSAS-TELSTRA-INTL-CUSTOMERSAS-TELXAS-TRANSROUTE-SPECAS13335:AS-CUSTOMERSAS49915:AS-CUSTOMERS
Tools

Check AS19901 live

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