Organization
Blackbaud, Inc.
BLACKBAUD-ASN
Registered
Mar 27, 2000
26 years ago
IPv4 Prefixes
4
1,536 addresses
IPv6 Prefixes
0
BGP Neighbours
1
1 upstream/peer · 0 downstream
Registration
AS Number AS15148 AS Name BLACKBAUD-ASN Organization Blackbaud, Inc. Organization ID BLACKB-4 Address 2000 Daniel Island Drive, Charleston, SC, 29492, United States Country United States (US) Registry ARIN Allocated Mar 27, 2000 Record Created Mar 27, 2000 Last Updated Mar 02, 2012 Status
active
WHOIS Server whois.arin.net AS Description BLACKBAUD-ASN - Blackbaud, Inc., US Abuse Email [email protected] Abuse Phone +1-512-420-4500 IPv4 Prefixes
4 prefixes · 1,536 addresses · 3 top-level Routing data as of 2026-10-15 16:00 UTC
| Prefix | Range | Addresses |
|---|---|---|
| 74.123.152.0/22 | 74.123.152.0 – 74.123.155.255 | 1,024 |
| 74.123.152.0/23 | 74.123.152.0 – 74.123.153.255 | 512 |
| 216.235.194.0/24 | 216.235.194.0 – 216.235.194.255 | 256 |
| 216.235.195.0/24 | 216.235.195.0 – 216.235.195.255 | 256 |
IPv6 Prefixes
This AS does not currently announce any IPv6 prefixes.
BGP Neighbours
1 unique neighbour · 1 upstream/peer · 0 downstream. A neighbour can be seen on more than one side. Rows are ordered by AS paths: the number of BGP paths seen by RIPE RIS that contain the adjacency. Sightings count each IPv4/IPv6 route with the adjacency once per RIS peer that sees it (routes × peers), so they show how widely it is seen, not how many distinct routes it carries. Networks seen to the left of this AS in BGP paths, toward the route collectors — typically its transit providers (upstreams) and peers. Upstream & peer side (1)
AS Name AS paths IPv4 sightings IPv6 sightings AS394901 AUS-ENT-DC-TX01 - NEW CCH, LLC 260 1,400 0
Raw RDAP Response
{
"endAutnum": 15148,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-03-04T09:17:51-05:00"
},
{
"eventAction": "registration",
"eventDate": "2012-04-26T21:14:51-04:00"
}
],
"handle": "NOC12595-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NOC12595-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/15148"
},
{
"href": "https://whois.arin.net/rest/poc/NOC12595-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/15148"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"abuse",
"noc",
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "65 Fairchild St\nCharleston\nSC\n29492\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Network Operations Center"
],
[
"org",
{},
"text",
"Blackbaud"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-512-420-4500"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2023-05-19T10:51:26-04:00"
},
{
"eventAction": "registration",
"eventDate": "1999-09-14T00:00:00-04:00"
}
],
"handle": "BLACKB-4",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/BLACKB-4",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/15148"
},
{
"href": "https://whois.arin.net/rest/org/BLACKB-4",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/15148"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Blackbaud, Inc."
],
[
"adr",
{
"label": "2000 Daniel Island Drive\nCharleston\nSC\n29492\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "1999-09-14T14:05:12-04:00"
},
{
"eventAction": "registration",
"eventDate": "1999-09-14T14:05:12-04:00"
}
],
"handle": "CH359-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/CH359-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/15148"
},
{
"href": "https://whois.arin.net/rest/poc/CH359-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/15148"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2010-06-10"
],
"title": "Unvalidated POC"
}
],
"roles": [
"technical"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2012-03-02T08:03:18-05:00"
},
{
"eventAction": "registration",
"eventDate": "2000-03-27T00:00:00-05:00"
}
],
"handle": "AS15148",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/15148",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/15148"
},
{
"href": "https://whois.arin.net/rest/asn/AS15148",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/15148"
}
],
"name": "BLACKBAUD-ASN",
"notices": [
{
"description": [
"By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use"
],
"links": [
{
"href": "https://www.arin.net/resources/registry/whois/tou/",
"rel": "terms-of-service",
"type": "text/html",
"value": "https://rdap.arin.net/registry/autnum/15148"
}
],
"title": "Terms of Service"
},
{
"description": [
"If you see inaccuracies in the results, please visit: "
],
"links": [
{
"href": "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/",
"rel": "inaccuracy-report",
"type": "text/html",
"value": "https://rdap.arin.net/registry/autnum/15148"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "autnum",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"nro_rdap_profile_asn_flat_0"
],
"startAutnum": 15148,
"status": [
"active"
]
} Contact details of private individuals are redacted.