Datacamp (CDN77) IP Ranges
Datacamp Limited is the UK company behind the CDN77 content delivery network, RIPE organisation ORG-DL201-RIPE at 207 Regent Street in London with company number 07489096, and it has no connection to the data science learning site of the same name. AS212238 is not its main network: the aut-num was created on 2 December 2020 with the as-name CDNEXT and registers a routing policy of exactly one line each way, import from AS60068 accept ANY and export to AS60068 announce AS212238. AS60068 is the older CDN77 aut-num, created on 4 June 2014 under the same organisation. Most of what AS212238 originates is address space registered to other companies.
- Provider
- Datacamp (CDN77)
- Primary ASN
- AS212238
- Category
- CDN
- Headquarters
- London, UK
- Announced IPv4 prefixes
- 3491
- Registry
- RIPE
Known IP ranges
These prefixes are currently announced to the global routing table by AS212238 (CDNEXT Datacamp Limited). Prefix sets change over time - use WHOIS Lookup for the authoritative record on any specific address.
104.250.208.0/20
104.233.32.0/20
38.89.80.0/21
93.88.144.0/21
104.143.232.0/21
38.57.40.0/21
38.89.72.0/21
104.233.0.0/21
92.39.48.0/21
104.250.192.0/21
2a0d:3900::/29
2a11:3bc0::/29
2a12:8440::/29 (IPv6)
What does a Datacamp (CDN77) IP mean in a privacy test?
The operator name on this ASN is close to useless as an identifier, because the largest prefixes it originates sit in records held by different organisations in different registries. 104.250.208.0/20 and 104.250.192.0/21 fall inside the RIPE allocation 104.250.192.0/19, netname UK-FASTPLANET-20141222, held by FASTPLANET LTD, whose RIPE organisation object records the same street address and postcode as Datacamp Limited, 207 Regent Street, W1B 3HH. 92.39.48.0/21 is netname CH-SOLARCOM-20080221 held by Solar Communications GmbH of Zurich, and addresses in it still answer to hosted-by.solarcom.ch. 38.89.80.0/21 is an ARIN assignment made by Cogent Communications, LLC to a customer recorded as ThinkHuge, and the two largest IPv6 blocks are LIR allocations to UAB code200 and to trafficforce, UAB, both of Vilnius. Only part of the space carries a Datacamp netname, 156.146.32.0/19 as UK-DATACAMP-19900205 among it, so the question worth asking about one of these addresses is which record covers this exact prefix.
What CDN77 publishes, and what it makes you ask for
CDN77's own documentation is explicit that its edge address list is not public. The origin protection page in its knowledge base tells customers who need to allowlist the CDN to write in on live chat or to its support address, says it will then provide an automatically updating list, and recommends a daily check of that list so that newly added addresses are picked up. No URL, no API endpoint and no ASN appears on that page, so a firewall rule assembled from a third-party guess at CDN77 space will drift out of date. The registry objects do not fill the gap either: neither AS212238 nor AS60068 carries a geofeed attribute, and none of the allocations checked for this page publishes one.
What is published is routing metadata, and almost all of it belongs to the parent ASN rather than this one. The aut-num for AS60068 documents an action-community scheme of the form 60068:YYYYZ, where the four-digit field selects a destination and the trailing digit selects the action, zero for no-export and one through three for successive prepends, with 60068:666 for blackhole and 60068:60010 for do-not-export to the backbone, and it enumerates internet exchanges in a 60068:50xx range running from 5001 for Peering.cz to 5074 for SGIX in Singapore. AS212238 documents almost nothing by comparison: no descr, no remarks, and only the single import and export pair against AS60068. For who actually holds a prefix, the answer is always the inetnum or the ARIN net for that prefix, and on this ASN it rarely names Datacamp.
CDN77 edge servers against leased address space
Reverse DNS separates the two cleanly here, and it is the fastest check available. A CDN77 cache node answers with a numeric identifier, a three-letter point-of-presence code and the cdn77.com domain: 185.59.220.1 returns 205996287.fra.cdn77.com, 185.59.221.5 returns 600524417.lon.cdn77.com, 185.59.222.10 returns 397299411.ams.cdn77.com and 89.187.162.1 returns 148000054.sgp.cdn77.com, for Frankfurt, London, Amsterdam and Singapore. Those are the machines that sit in front of a customer website, and a request from one of them is the CDN fetching or serving content on somebody else's behalf.
Address space handed to tenants uses a different template entirely: the dashed literal address behind a unn- prefix, under either domain the group uses. 156.146.32.1 returns unn-156-146-32-1.cdn77.com, 212.102.35.1 returns unn-212-102-35-1.cdn77.com and 143.244.44.1 returns unn-143-244-44-1.datapacket.com. Much of what AS212238 originates has no reverse record at all: sampled addresses in 104.250.208.0/20, 104.233.32.0/20, 38.89.80.0/21, 93.88.144.0/21, 104.143.232.0/21, 38.57.40.0/21, 104.233.0.0/21 and 104.250.192.0/21 returned nothing, and the RIPE record for 104.233.32.0/20 is an ASSIGNED PA object with netname codesg and country SG, maintained by lir-uk-fastplanet-1-MNT, the same LIR maintainer as the FASTPLANET allocation above it. The rule for a log line, then: a point-of-presence name is CDN infrastructure, a unn- name or no name at all is a machine some other party runs, and neither is a residential connection.
Related tools
Frequently asked questions
Is this the same DataCamp as the online learning site?
No. Datacamp Limited here is a UK network operator, RIPE organisation ORG-DL201-RIPE, company number 07489096, registered at 207 Regent Street in London, and it is the company behind the CDN77 content delivery network. The data science education service is an unrelated business that happens to share the name.
Is AS212238 the same network as CDN77's AS60068?
They belong to the same RIPE organisation but they are distinct objects. AS60068 carries the as-name CDN77 and was created in June 2014; AS212238 carries the as-name CDNEXT, was created in December 2020, and its entire registered policy is one import from AS60068 and one export to it. The community documentation and the exchange list live on AS60068, not on this ASN.
How do I tell a CDN77 edge server from a rented machine?
By the shape of the reverse DNS name. Edge caches answer with a numeric identifier, a three-letter point-of-presence code and the cdn77.com domain, as in 205996287.fra.cdn77.com for Frankfurt. Address space allocated to tenants answers with the dashed address behind a unn- prefix, as in unn-156-146-32-1.cdn77.com or unn-143-244-44-1.datapacket.com, or with no name at all.
Does CDN77 publish a list of its IP addresses?
Not publicly. Its origin protection documentation asks customers who need to allowlist the CDN to request an automatically updating list over live chat or by email, and advises checking it daily because addresses get added. There is no published feed URL or API endpoint on that page, and no geofeed attribute on the registry objects either.
Why does whois name a different company for a Datacamp prefix?
Because AS212238 announces a great deal of address space allocated to other organisations. 92.39.48.0/21 belongs to Solar Communications GmbH in Switzerland, 38.89.80.0/21 is an ARIN assignment by Cogent Communications to a customer called ThinkHuge, 104.250.192.0/19 is held by FASTPLANET LTD, and the two largest IPv6 blocks are allocations to Lithuanian LIRs. The aut-num tells you who routes a prefix; the inetnum or ARIN net tells you who holds it.