AS27398 AITSL-27398 - Alyeska Information Technology Services LLC
🇺🇸ARINassigned
Announced Prefixes (BGP)
6total
4 IPv42 IPv6
IPv4 Addresses
Allocated (RIR)3,072
Announced (BGP)3,072
IPv6 Addresses
Allocated (RIR)4.9×10²⁷
Announced (BGP)4.8×10²⁴
Announced Prefixes
(BGP)6|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| Valid | ARINOther IRR | 2026-10-11 | |
| Valid | - | 2026-10-11 | |
| Valid | - | 2026-10-11 | |
| Valid | ARINOther IRR | 2026-10-11 | |
| Valid | - | 2026-10-11 | |
| Valid | - | 2026-10-11 |
Allocated Prefixes
(RIR)4Prefix | Country | RIR | Status |
|---|---|---|---|
| 74.123.136.0/22 | 🇺🇸 US | ARIN | allocated |
| 162.218.248.0/22 | 🇺🇸 US | ARIN | allocated |
| 206.81.160.0/22 | 🇺🇸 US | ARIN | allocated |
| 2602:fed5::/36 | 🇺🇸 US | ARIN | allocated |
All 6 announced prefixes of AS27398 →
BGP Neighbours
(seen in AS paths)Upstreams (1)
Networks AS27398 hands its own prefixes to: transit providers, or peers at an exchange.
- AS6939Hurricane Electric6
ASPA
No ASPA
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
- ASPA explainedWhy AS27398 should publish an ASPA object
- 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/27398Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/27398" | jq