AS62523 CIRBN-LLC - CIRBN, LLC
🇺🇸ARINassignedASPA Published
Announced Prefixes (BGP)
19total
18 IPv41 IPv6
IPv4 Addresses
Allocated (RIR)8,192
Announced (BGP)16,640
IPv6 Addresses
Allocated (RIR)7.9×10²⁸
Announced (BGP)7.9×10²⁸
Routing hygiene
Score 17/100 · Low riskRPKI ROA coverage
68.4%
no RPKI invalid prefixes
IRR route objects
100%
no origin mismatches
Hijack signals
0
0 announced against others' ROAs, 0 own announced by others
Upstreams
2
diversity 27/100
- 32% of announced prefixes (6 of 19) have no valid ROA
- Routes concentrated on one upstream (84% of routes)
Based on 19 announced prefixes, updated daily (2026-10-23). How the score works · RPKI explained
Announced Prefixes
(BGP)19|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| No ROA | Other IRR | 2026-10-24 | |
| Valid | Other IRR | 2026-10-24 | |
| Valid | ARIN | 2026-10-24 | |
| Valid | ARINOther IRR | 2026-10-24 | |
| No ROA | Other IRR | 2026-10-24 | |
| No ROA | - | 2026-10-24 | |
| No ROA | - | 2026-10-24 | |
| No ROA | - | 2026-10-24 | |
| No ROA | Other IRR | 2026-10-24 | |
| Valid | ARIN | 2026-10-24 |
1-10 of 19
1 / 2
Allocated Prefixes
(RIR)3Prefix | Country | RIR | Status |
|---|---|---|---|
| 107.152.0.0/20 | 🇺🇸 US | ARIN | allocated |
| 199.38.32.0/20 | 🇺🇸 US | ARIN | allocated |
| 2605:b180::/32 | 🇺🇸 US | ARIN | allocated |
All 19 announced prefixes of AS62523 →
Upstream Providers(3)
Downstream Customers(1)
| ASN | Name |
|---|---|
| AS399440 | 🇺🇸AS-HEARTLANDFIBER - Heartland Fiber, Inc. |
BGP Neighbours
(seen in AS paths)Upstreams (2)
Networks AS62523 hands its own prefixes to: transit providers, or peers at an exchange.
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/62523Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/62523" | jq