Autonomous system
AS19901 BRSPD-PUBLIC
Residential APNIC
Summary
Brightspeed
residential fiber isp us
BRSPD-PUBLIC is the public AS for Brightspeed, a US residential broadband provider.
What it's used for
- The address space carries residential customer traffic, evidenced by reverse DNS entries like
dhcp-9-138-128-0.gobrightspeed.netand legacyqwest.net/centurylink.nethostnames. - With 3,054,592 IPv4 addresses announced across 588 prefixes and only 6 observed neighbours, the high address-to-neighbour ratio indicates an access/eyeball network rather than a transit provider.
Notable
- Registrants include both Brightspeed and CenturyLink Communications, LLC, reflecting the company's history of acquiring Qwest and CenturyLink assets.
- The inventory includes large legacy blocks such as
9.138.0.0/15and9.244.0.0/15registered to Brightspeed, alongside numerous/16blocks still registered to CenturyLink Communications, LLC. - The address inventory is finely subdivided into 588 IPv4 prefixes and 43 IPv6 prefixes, consistent with a large-scale residential deployment.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 2 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Detroit Internet Exchange | Detroit, United States | 209.124.52.24 |
| Kansas City Internet Exchange | Kansas City, United States | 206.51.7.101 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 517 prefixes · 3.04M addresses IPv6 44 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 561 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS19901- Registry name
- BRIGHTSPEED
- Registrant
- Brightspeed
- Abuse contact
- arin-abuse@brightspeed.com
- Registered
- 2022-11-07
- Last changed
- 2025-08-12
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 15% valid · 198 valid, 1,128 with no ROA
- ROAs
- 160 authorising AS19901
- ASPA
- 5 declared providers
- IRR
- 15% registered · 198 of 1,326 announcements
- Route objects
- 167 naming AS19901
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,772 prefixes, as published 2026-10-15. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere