[REN-BGP-stats-all] IPv4 R&E Routing Table Report - CENIC (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Tue Oct 31 22:05:39 UTC 2023
IPv4 R&E Routing Table Report 22:05 GMT Tue 31 Oct, 2023
IPv4 BGP Table (R&E) as seen at CENIC.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/CENIC/
Analysis Summary
----------------
BGP routing table entries examined: 19318
Prefixes after maximum aggregation (per Origin AS): 11111
Deaggregation factor: 1.74
Unique aggregates announced (without unneeded subnets): 12274
Number of IPv4 prefixes with a valid ROA: 5703
Number of IPv4 prefixes with an invalid ROA: 9
Number of IPv4 prefixes with no ROA: 13606
Total ASes present in the Internet Routing Table: 2792
Prefixes per ASN: 6.92
Origin-only ASes present in the Internet Routing Table: 2412
Origin ASes announcing only one prefix: 1073
Transit ASes present in the Internet Routing Table: 380
Transit-only ASes present in the Internet Routing Table: 68
Paths with bogon ASNs present in the IPv4 Routing Table: 7
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 14
Max AS path prepend of ASN ( 10497) 11
Prefixes from unregistered ASNs in the Routing Table: 7
Number of instances of unregistered ASNs: 7
Number of 32-bit ASNs allocated by the RIRs: 42955
Number of 32-bit ASNs visible in the Routing Table: 640
Prefixes from 32-bit ASNs in the Routing Table: 1949
Number of bogon 32-bit ASNs visible in the Routing Table: 0
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 3
Number of addresses announced to Internet: 260770304
Equivalent to 15 /8s, 139 /16s and 10 /24s
Percentage of available address space announced: 7.0
Percentage of allocated address space announced: 7.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.6
Total number of prefixes smaller than registry allocations: 2133
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4639
Total APNIC prefixes after maximum aggregation: 2284
APNIC Deaggregation factor: 2.03
Prefixes being announced from the APNIC address blocks: 4675
Unique aggregates announced from the APNIC address blocks: 2646
APNIC Region origin ASes present in the Internet Routing Table: 540
APNIC Prefixes per ASN: 8.66
APNIC Region origin ASes announcing only one prefix: 227
APNIC Region transit ASes present in the Internet Routing Table: 59
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 14
Number of APNIC region 32-bit ASNs visible in the Routing Table: 204
Number of APNIC addresses announced to Internet: 47085312
Equivalent to 2 /8s, 206 /16s and 119 /24s
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-64098, 64297-64395, 131072-153913
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 8632
Total ARIN prefixes after maximum aggregation: 5222
ARIN Deaggregation factor: 1.65
Prefixes being announced from the ARIN address blocks: 8489
Unique aggregates announced from the ARIN address blocks: 5611
ARIN Region origin ASes present in the Internet Routing Table: 1280
ARIN Prefixes per ASN: 6.63
ARIN Region origin ASes announcing only one prefix: 455
ARIN Region transit ASes present in the Internet Routing Table: 165
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 14
Number of ARIN region 32-bit ASNs visible in the Routing Table: 197
Number of ARIN addresses announced to Internet: 138775296
Equivalent to 8 /8s, 69 /16s and 139 /24s
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 62464-63487, 64198-64296, 393216-401308
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 47/8, 48/8, 50/8, 52/8, 53/8,
54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8,
66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8,
73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8,
99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8,
130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8,
138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8,
147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8,
158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8,
166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8,
174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8,
206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 3557
Total RIPE prefixes after maximum aggregation: 2856
RIPE Deaggregation factor: 1.25
Prefixes being announced from the RIPE address blocks: 3666
Unique aggregates announced from the RIPE address blocks: 3022
RIPE Region origin ASes present in the Internet Routing Table: 686
RIPE Prefixes per ASN: 5.34
RIPE Region origin ASes announcing only one prefix: 303
RIPE Region transit ASes present in the Internet Routing Table: 102
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 13
Number of RIPE region 32-bit ASNs visible in the Routing Table: 146
Number of RIPE addresses announced to Internet: 67426048
Equivalent to 4 /8s, 4 /16s and 215 /24s
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
59392-61439, 61952-62463, 64396-64495
196608-216475
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 1426
Total LACNIC prefixes after maximum aggregation: 571
LACNIC Deaggregation factor: 2.50
Prefixes being announced from the LACNIC address blocks: 1425
Unique aggregates announced from the LACNIC address blocks: 767
LACNIC Region origin ASes present in the Internet Routing Table: 165
LACNIC Prefixes per ASN: 8.64
LACNIC Region origin ASes announcing only one prefix: 61
LACNIC Region transit ASes present in the Internet Routing Table: 26
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 13
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 67
Number of LACNIC addresses announced to Internet: 4624384
Equivalent to 0 /8s, 70 /16s and 144 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-273820 + ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 1057
Total AfriNIC prefixes after maximum aggregation: 171
AfriNIC Deaggregation factor: 6.18
Prefixes being announced from the AfriNIC address blocks: 1060
Unique aggregates announced from the AfriNIC address blocks: 225
AfriNIC Region origin ASes present in the Internet Routing Table: 50
AfriNIC Prefixes per ASN: 21.20
AfriNIC Region origin ASes announcing only one prefix: 27
AfriNIC Region transit ASes present in the Internet Routing Table: 9
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 10
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 26
Number of AfriNIC addresses announced to Internet: 2793216
Equivalent to 0 /8s, 42 /16s and 159 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 45/8, 102/8, 105/8, 154/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 593 2162 465 SINET-AS Research Organization of Infor
7497 437 180 23 CSTNET-AS-AP Computer Network Informati
1237 193 74 142 KREONET-AS-KR KISTI, KR
7575 177 329 120 AARNET-AS-AP Australian Academic and Re
58647 177 18 2 KAGAWAU-AS Kagawa University, JP
4538 130 4192 73 ERX-CERNET-BKB China Education and Rese
55824 127 19 17 NKN-CORE-NW NKN Core Network, IN
4621 69 37 10 UNINET-AS-AP UNINET-, TH
9411 66 16 2 NONTRINET-AS-AP Kasetsart University, T
4762 64 4 1 MAHIDOL-BORDER-AS Mahidol University, T
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8075 389 12792 329 MICROSOFT-CORP-MSN-AS-BLOCK, US
376 202 178 151 RISQ-AS, CA
668 202 636 171 DNIC-AS-00668, US
5786 197 16 1 UPRENET, PR
2152 143 507 90 CSUNET-NW, US
18558 141 18 4 NETBLK-RCOEK, US
81 127 521 30 NCREN, US
270 118 329 82 AS270, US
23024 113 7 17 OCDE, US
2920 101 34 7 LACOE, US
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 283 1903 249 DFN Verein zur Foerderung eines Deutsch
786 185 1767 182 JANET Jisc Services Limited, GB
8895 133 24 5 ISU Internet Services Unit ISU, SA
559 113 533 105 SWITCH Peering requests: peering at switch
1103 94 1502 83 SURFNET-NL SURFnet, The Netherlands, NL
2614 94 27 74 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
553 76 462 76 BELWUE BelWue-Koordination, DE
3267 66 69 49 RUNNET, RU
1930 65 81 60 RCCN Fundacao para a Ciencia e a Tecnol
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 209 176 42 Rede Nacional de Ensino e Pesquisa, BR
28391 153 10 67 Universidad Juarez Autonoma de Tabasco,
11340 104 24 48 Red Universitaria Nacional, CL
271640 70 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
4270 50 17 3 Red de Interconexion Universitaria, AR
19611 48 17 2 Associacao Antonio Vieira - Unisinos, B
2715 44 99 34 Fundacao Carlos Chagas Filho de Amparo
61468 43 3 14 CEDIA, EC
28614 38 2 2 Fundacao Universidade Regional de Blume
3596 34 4 3 Universidad Autonoma Metropolitana, MX
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2018 381 319 71 TENET-1, ZA
36914 249 82 3 KENET-AS, KE
327687 166 28 3 RENU, UG
8094 48 48 15 PUKNET, ZA
327700 41 16 1 MoRENet, MZ
3208 32 2 1 ARN, DZ
6879 24 2 9 ENSTINET-, EG
37074 14 8 2 UG-AS, GH
37501 11 49 6 UOFS, ZA
37654 10 1 6 RwEdNet-AS, RW
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 593 2162 465 SINET-AS Research Organization of Infor
7497 437 180 23 CSTNET-AS-AP Computer Network Informati
8075 389 12792 329 MICROSOFT-CORP-MSN-AS-BLOCK, US
2018 381 319 71 TENET-1, ZA
680 283 1903 249 DFN Verein zur Foerderung eines Deutsch
36914 249 82 3 KENET-AS, KE
1916 209 176 42 Rede Nacional de Ensino e Pesquisa, BR
376 202 178 151 RISQ-AS, CA
668 202 636 171 DNIC-AS-00668, US
5786 197 16 1 UPRENET, PR
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
7497 437 414 CSTNET-AS-AP Computer Network Information Cente
2018 381 310 TENET-1, ZA
36914 249 246 KENET-AS, KE
5786 197 196 UPRENET, PR
58647 177 175 KAGAWAU-AS Kagawa University, JP
1916 209 167 Rede Nacional de Ensino e Pesquisa, BR
327687 166 163 RENU, UG
18558 141 137 NETBLK-RCOEK, US
8895 133 128 ISU Internet Services Unit ISU, SA
55824 127 110 NKN-CORE-NW NKN Core Network, IN
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
65208 PRIVATE 63.225.1.0/24 11570 EASTERN-NEW-MEXICO-UNIVERITY
65101 PRIVATE 64.54.9.0/24 5653 UCSF, US
65101 PRIVATE 64.54.18.0/24 5653 UCSF, US
65101 PRIVATE 64.54.196.0/24 5653 UCSF, US
394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US
394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US
65208 PRIVATE 216.161.32.0/23 11570 EASTERN-NEW-MEXICO-UNIVERITY
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-badAS
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
134.208.0.0/16 Origin: 17711 NDHU-TW National Dong Hwa University, TW
134.208.0.0/16 Transit: 7539 TWAREN-TW National Center for High-perfo
192.31.196.0/24 Origin: 112 RESERVED, ZZ
192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL
202.58.231.0/24 Origin: 134096 EHEALTHNSW-AS-AP eHealth NSW, AU
202.58.231.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:0 /9:1 /10:4 /11:7 /12:22
/13:29 /14:58 /15:150 /16:2103 /17:454 /18:465
/19:593 /20:894 /21:880 /22:1532 /23:1577 /24:10549
/25:0 /26:0 /27:0 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 238 249 KENET-AS, KE
8895 128 133 ISU Internet Services Unit ISU, SA
8075 82 389 MICROSOFT-CORP-MSN-AS-BLOCK, US
23024 52 113 OCDE, US
32440 38 61 LONI, US
327700 37 41 MoRENet, MZ
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
46115 32 35 LUTHER, US
25977 30 44 HCCS, US
200521 30 52 SEAP-AGE, ES
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2 2:1 4:2 5:16 6:4 8:2
12:1 13:33 14:89 23:8 24:3 31:7
35:6 38:8 40:1 41:119 42:10 44:7
45:49 46:6 47:1 49:9 50:6 52:6
58:1 59:19 60:5 61:3 62:17 63:37
64:54 65:1 66:56 67:46 68:16 69:25
70:2 71:1 72:8 74:51 76:42 77:9
78:3 79:9 80:13 81:27 82:7 83:6
84:7 85:41 86:4 87:1 89:10 91:51
92:4 93:4 94:8 95:2 96:5 97:2
98:2 101:2 102:31 103:278 104:76 108:12
109:9 111:17 113:4 114:23 116:6 117:61
118:32 119:18 121:28 122:8 123:8 124:40
125:4 128:88 129:52 130:86 131:73 132:64
133:152 134:107 135:1 136:196 137:134 138:11
139:5 140:40 141:3 142:42 143:22 144:26
145:4 146:131 147:59 148:193 149:13 150:50
151:13 152:133 153:14 154:29 155:63 156:65
157:20 158:33 159:115 160:34 161:24 162:42
163:84 164:13 165:49 166:1 167:16 168:123
169:8 170:81 171:1 172:3 173:8 175:18
176:9 177:5 178:1 179:12 180:15 182:1
184:3 185:80 186:3 187:17 188:14 189:3
190:19 191:13 192:1482 193:288 194:141 195:84
196:197 197:163 198:518 199:291 200:322 201:38
202:617 203:432 204:363 205:136 206:193 207:153
208:81 209:117 210:192 211:14 212:164 213:6
214:8 216:91 217:10 218:22 219:5 220:16
222:2 223:14
End of report
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