AS4186 ATTIS-ASN4186 - AT&T Enterprises, LLC
🇺🇸ARINassigned
Announced Prefixes (BGP)
0total
0 IPv40 IPv6
IPv4 Addresses
Allocated (RIR)0
Announced (BGP)0
IPv6 Addresses
Allocated (RIR)0
Announced (BGP)0
Routing hygiene
Score 65/100 · High riskRPKI ROA coverage
0%
no RPKI invalid prefixes
IRR route objects
0%
5 prefixes registered for another origin
Hijack signals
0
0 announced against others' ROAs, 0 own announced by others
Upstreams
1
diversity 0/100
- 100% of announced prefixes (13 of 13) have no valid ROA
- 100% of announced prefixes (13 of 13) have no IRR route object for this ASN
- 3 prefixes registered in IRR route objects for another active network and not authorized by a ROA
- Only one upstream seen in the AS paths of its routes
Based on 13 announced prefixes, updated daily (2026-10-16). How the score works · RPKI explained
No prefixes found for this ASN.
Downstream Customers(1)
| ASN | Name |
|---|---|
| AS401953 | 🇺🇸SBA1DC - U.S. Small Business Administration |
Transfer History
Registry transfers of AS4186 between organisations.
- AS4186M&A ·
- AS4186M&A ·
External Links
Learn more
- What is an ASN?Autonomous systems, ASN ranges and how they are assigned
- RPKI and route origin validationWhat the RPKI badges on the prefix list mean
- How to run an ASPA checkVerify the upstream providers listed above
- IPv4 transfers in the ARIN regionMonthly volume and the latest registry transfers
- ASN data in AI agents and SIEMMCP server and API integrations
API
Open https://api.ipctl.io/v1/asn/4186Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/4186" | jq