Autonomous system
AS15148 BLACKBAUD-ASN - Blackbaud, Inc.
Unclassified ARIN
Summary
Blackbaud
business hosting
Three company names in one record, and only one of them is the holder's.
What it's used for
- A software company's network. Two IPv4 prefixes announced from the United States, no IPv6, and a single observed BGP neighbour.
Notable
- One block carries the netname
WHIPPLEHILL-NET0, an acquired company's name with a counter that starts at zero; the other isBLACKBAUD-BLK-1, the holder's name with a counter that starts at one. - Both are registered to the holder, so the registry is consistent about ownership and inconsistent about naming.
- Both sampled addresses that answered returned names under a third company's domain, in the form
cluster2.convio.net. - The AS handle appends the object type to the holder's name, making a fourth string.
Interesting
- Two counters starting at different numbers in the same record is a small thing that breaks ordering. One scheme counts from zero and the other from one, so the first block of each is not comparable to the first block of the other.
- The reverse names are the useful part. They name neither the holder nor the netname's company but a third acquisition, which means the machines were never renamed after either purchase. Acquisition history survives in DNS long after the corporate record has been tidied.
- One upstream for a company that hosts other organisations' data is the exposure worth stating plainly.
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
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS394901 | NEW CCH, LLC | 239 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-08, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 2 prefixes · 1.54K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 2 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS15148- Registry name
- BLACKBAUD-ASN
- Registrant
- Blackbaud, Inc.
- Abuse contact
- SDO-ARIN@blackbaud.com
- Registered
- 2000-03-27
- Last changed
- 2012-03-02
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 4 with no ROA
- ROAs
- 0 authorising AS15148
- ASPA
- no ASPA record
- IRR
- 100% registered · 4 of 4 announcements
- Route objects
- 8 naming AS15148
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: 455 networks and 1,854 prefixes, as published 2026-11-09. 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