Autonomous system
AS21693 BGP-ASN-21693
Unclassified ARIN
Summary
Xcel Energy
utility corporate business infrastructure
BGP-ASN-21693 is held by Xcel Energy Inc.
What it's used for
- The address space carries corporate and utility infrastructure, evidenced by netnames such as
XCELEN-2andPSCO(Public Service Company of Colorado). - With 134144 IPv4 addresses announced across 8 prefixes and only 2 observed neighbours, the ratio indicates an internal corporate estate rather than a transit or access network.
Notable
- Registrants align with the announcer, listing Xcel Energy Inc. and Public Service Company of Colorado, a subsidiary of Xcel Energy.
- Xcel Energy is a major American utility company that operates in multiple states, including Colorado where Public Service Company of Colorado is a regulated utility subsidiary.
- The inventory consists of two large /16 blocks and six smaller /22 and /24 blocks, all located in the United States.
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 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Midwest Internet Cooperative Exchange | Minneapolis, United States | 206.108.255.115 |
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS55002 | F5, Inc. | 812 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 8 prefixes · 134K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 8 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS21693- Registry name
- BGP-ASN-21693
- Registrant
- Xcel Energy Inc.
- Abuse contact
- inoc@xcelenergy.com
- Registered
- 2016-10-05
- Last changed
- 2016-10-05
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 14 valid, 0 with no ROA
- ROAs
- 16 authorising AS21693
- ASPA
- no ASPA record
- IRR
- 100% registered · 14 of 14 announcements
- Route objects
- 14 naming AS21693
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
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: 431 networks and 1,768 prefixes, as published 2026-10-12. 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