AS23028 TEAM-CYMRU - Team Cymru Inc.
🇺🇸ARINassignedASPA Published
Announced Prefixes (BGP)
47total
30 IPv417 IPv6
IPv4 Addresses
Allocated (RIR)16,896
Announced (BGP)23,808
IPv6 Addresses
Allocated (RIR)7.9×10²⁸
Announced (BGP)7.9×10²⁸
Routing hygiene
Score 20/100 · Low riskRPKI ROA coverage
46.8%
no RPKI invalid prefixes
IRR route objects
100%
no origin mismatches
Hijack signals
1
0 announced against others' ROAs, 1 own announced by others
Upstreams
7
diversity 66/100
- 53% of announced prefixes (25 of 47) have no valid ROA
Based on 47 announced prefixes, updated daily (2026-10-27). How the score works · RPKI explained
Announced Prefixes
(BGP)47|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| No ROA | Other IRR | 2026-10-28 | |
| No ROA | Other IRR | 2026-10-28 | |
| No ROA | Other IRR | 2026-10-28 | |
| No ROA | Other IRR | 2026-10-28 | |
| No ROA | Other IRR | 2026-10-28 | |
| No ROA | Other IRR | 2026-10-28 | |
| No ROA | ARINOther IRR | 2026-10-28 | |
| Valid | ARIN | 2026-10-28 | |
| Valid | ARIN | 2026-10-28 | |
| Valid | ARIN | 2026-10-28 |
1-10 of 47
1 / 5
Allocated Prefixes
(RIR)5Prefix | Country | RIR | Status |
|---|---|---|---|
| 192.138.226.0/24 | 🇺🇸 US | ARIN | allocated |
| 203.28.18.0/24 | 🇦🇺 AU | APNIC | assigned |
| 216.31.0.0/18 | 🇺🇸 US | ARIN | allocated |
| 2604:8800::/32 | 🇺🇸 US | ARIN | allocated |
| 2620:0:6b0::/48 | 🇺🇸 US | ARIN | allocated |
All 47 announced prefixes of AS23028 →
Upstream Providers(9)
| ASN | Name |
|---|---|
| AS174 | 🇺🇸COGENT-174 - Cogent Communications, LLC |
| AS2914 | 🇺🇸NTT-DATA-2914 - NTT America, Inc. |
| AS6461 | 🇺🇸ZAYO-6461 - Zayo Bandwidth |
| AS6939 | 🇺🇸HURRICANE - Hurricane Electric LLC |
| AS7018 | 🇺🇸ATT-INTERNET4 - AT&T Enterprises, LLC |
| AS8220 | 🇬🇧COLT COLT Technology Services Group Limited |
| AS14618 | 🇺🇸AMAZON-AES - Amazon.com, Inc. |
| AS16509 | 🇺🇸AMAZON-02 - Amazon.com, Inc. |
| AS23352 | 🇺🇸SERVERCENTRAL - DEFT.COM |
ASPA
Published9 upstreams, 0 downstreams
Authorized Upstream Providers
Expires 2026-10-30
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/23028Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/23028" | jq