[REN-BGP-stats-all] IPv4 R&E Routing Table Report - CENIC (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Tue Sep 24 22:05:45 UTC 2024
IPv4 R&E Routing Table Report 22:05 GMT Tue 24 Sep, 2024
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: 19984
Prefixes after maximum aggregation (per Origin AS): 11408
Deaggregation factor: 1.75
Unique aggregates announced (without unneeded subnets): 12692
Number of IPv4 prefixes with a valid ROA: 7773
Number of IPv4 prefixes with an invalid ROA: 14
Number of IPv4 prefixes with no ROA: 12197
Total ASes present in the Internet Routing Table: 2798
Prefixes per ASN: 7.14
Origin-only ASes present in the Internet Routing Table: 2427
Origin ASes announcing only one prefix: 1071
Transit ASes present in the Internet Routing Table: 371
Transit-only ASes present in the Internet Routing Table: 62
Paths with bogon ASNs present in the IPv4 Routing Table: 3
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 19
Max AS path prepend of ASN (395156) 12
Prefixes from unregistered ASNs in the Routing Table: 2
Number of instances of unregistered ASNs: 2
Number of 32-bit ASNs allocated by the RIRs: 45416
Number of 32-bit ASNs visible in the Routing Table: 681
Prefixes from 32-bit ASNs in the Routing Table: 1915
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: 6
Number of addresses announced to Internet: 272836096
Equivalent to 16 /8s, 67 /16s and 38 /24s
Percentage of available address space announced: 7.4
Percentage of allocated address space announced: 7.4
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: 2406
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4703
Total APNIC prefixes after maximum aggregation: 2304
APNIC Deaggregation factor: 2.04
Prefixes being announced from the APNIC address blocks: 4756
Unique aggregates announced from the APNIC address blocks: 2706
APNIC Region origin ASes present in the Internet Routing Table: 579
APNIC Prefixes per ASN: 8.21
APNIC Region origin ASes announcing only one prefix: 245
APNIC Region transit ASes present in the Internet Routing Table: 61
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 14
Number of APNIC region 32-bit ASNs visible in the Routing Table: 226
Number of APNIC addresses announced to Internet: 47485184
Equivalent to 2 /8s, 212 /16s and 145 /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: 9188
Total ARIN prefixes after maximum aggregation: 5579
ARIN Deaggregation factor: 1.65
Prefixes being announced from the ARIN address blocks: 8842
Unique aggregates announced from the ARIN address blocks: 5857
ARIN Region origin ASes present in the Internet Routing Table: 1293
ARIN Prefixes per ASN: 6.84
ARIN Region origin ASes announcing only one prefix: 447
ARIN Region transit ASes present in the Internet Routing Table: 156
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 15
Number of ARIN region 32-bit ASNs visible in the Routing Table: 210
Number of ARIN addresses announced to Internet: 136350976
Equivalent to 8 /8s, 32 /16s and 141 /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, 393216-402332
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: 3510
Total RIPE prefixes after maximum aggregation: 2813
RIPE Deaggregation factor: 1.25
Prefixes being announced from the RIPE address blocks: 3795
Unique aggregates announced from the RIPE address blocks: 3181
RIPE Region origin ASes present in the Internet Routing Table: 656
RIPE Prefixes per ASN: 5.79
RIPE Region origin ASes announcing only one prefix: 294
RIPE Region transit ASes present in the Internet Routing Table: 103
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 14
Number of RIPE region 32-bit ASNs visible in the Routing Table: 153
Number of RIPE addresses announced to Internet: 81651968
Equivalent to 4 /8s, 221 /16s and 233 /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: 1413
Total LACNIC prefixes after maximum aggregation: 539
LACNIC Deaggregation factor: 2.62
Prefixes being announced from the LACNIC address blocks: 1414
Unique aggregates announced from the LACNIC address blocks: 724
LACNIC Region origin ASes present in the Internet Routing Table: 157
LACNIC Prefixes per ASN: 9.01
LACNIC Region origin ASes announcing only one prefix: 54
LACNIC Region transit ASes present in the Internet Routing Table: 23
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 14
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 64
Number of LACNIC addresses announced to Internet: 4731136
Equivalent to 0 /8s, 72 /16s and 49 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-274844 + 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: 1168
Total AfriNIC prefixes after maximum aggregation: 171
AfriNIC Deaggregation factor: 6.83
Prefixes being announced from the AfriNIC address blocks: 1171
Unique aggregates announced from the AfriNIC address blocks: 219
AfriNIC Region origin ASes present in the Internet Routing Table: 49
AfriNIC Prefixes per ASN: 23.90
AfriNIC Region origin ASes announcing only one prefix: 31
AfriNIC Region transit ASes present in the Internet Routing Table: 10
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 28
Number of AfriNIC addresses announced to Internet: 2606080
Equivalent to 0 /8s, 39 /16s and 196 /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 588 2169 464 SINET-AS Research Organization of Informa
7497 451 212 25 CSTNET-AS-AP Computer Network Information
1237 190 74 145 KREONET-AS-KR KISTI, KR
58647 180 18 2 KAGAWAU-AS Kagawa University, JP
7575 172 329 115 AARNET-AS-AP Australian Academic and Rese
55824 133 19 20 NKN-CORE-NW NKN Core Network, IN
4538 129 4192 72 ERX-CERNET-BKB China Education and Resear
4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, Tha
4621 69 37 10 UNINET-AS-AP UNINET-, TH
23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR
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 661 16043 560 MICROSOFT-CORP-MSN-AS-BLOCK, US
668 205 648 174 DNIC-AS-00668, US
376 200 162 149 RISQ-AS, CA
5786 197 16 1 UPRENET, PR
2920 175 34 7 LACOE, US
2152 154 507 97 CENIC-2152, US
18558 140 18 4 NETBLK-RCOEK, US
81 134 517 33 NCREN, US
270 117 328 81 AS270, US
23024 95 7 21 OCDE, 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
680 282 1899 249 DFN Verein zur Foerderung eines Deutschen
786 185 1767 182 JANET Jisc Services Limited, GB
8895 135 24 5 ISU Internet Services Unit ISU, SA
559 114 533 104 SWITCH Peering requests: peering at switch.c
1103 97 2015 84 SURFNET-NL SURFnet, The Netherlands, NL
2614 90 26 70 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnolog
553 78 462 78 BELWUE BelWue-Koordination, DE
3267 75 26 65 NIKS, RU
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 180 180 41 Rede Nacional de Ensino e Pesquisa, BR
28391 154 10 68 Universidad Juarez Autonoma de Tabasco, M
11340 109 25 52 Red Universitaria Nacional, CL
271640 67 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
61468 50 5 17 CEDIA, EC
2715 49 99 35 Fundacao Carlos Chagas Filho de Amparo a
19611 48 17 2 Associacao Antonio Vieira - Unisinos, BR
4270 45 16 1 Red de Interconexion Universitaria, AR
28614 38 2 2 Fundacao Universidade Regional de Blumena
3596 37 8 4 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
36914 531 82 3 KENET-AS, KE
2018 381 319 71 TENET-1, ZA
327700 48 16 1 MoRENet, MZ
8094 47 48 18 PUKNET, ZA
37215 32 8 1 MAREN, MW
6879 24 2 9 ENSTINET-, EG
37074 15 8 2 UG-AS, GH
37661 12 8 4 NRaE1-AS, NG
37501 11 49 6 UOFS, ZA
36982 8 33 8 UCT, ZA
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
8075 661 16043 560 MICROSOFT-CORP-MSN-AS-BLOCK, US
2907 588 2169 464 SINET-AS Research Organization of Informa
36914 531 82 3 KENET-AS, KE
7497 451 212 25 CSTNET-AS-AP Computer Network Information
2018 381 319 71 TENET-1, ZA
680 282 1899 249 DFN Verein zur Foerderung eines Deutschen
668 205 648 174 DNIC-AS-00668, US
376 200 162 149 RISQ-AS, CA
5786 197 16 1 UPRENET, PR
1237 190 74 145 KREONET-AS-KR KISTI, KR
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
36914 531 528 KENET-AS, KE
7497 451 426 CSTNET-AS-AP Computer Network Information Cente
2018 381 310 TENET-1, ZA
5786 197 196 UPRENET, PR
58647 180 178 KAGAWAU-AS Kagawa University, JP
2920 175 168 LACOE, US
1916 180 139 Rede Nacional de Ensino e Pesquisa, BR
18558 140 136 NETBLK-RCOEK, US
8895 135 130 ISU Internet Services Unit ISU, SA
2907 588 124 SINET-AS Research Organization of Information a
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
26971 UNALLOCATED 129.111.0.0/16 276 OTS-AS-276, US
65208 PRIVATE 206.206.156.0/22 11570 AS11570, US
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-badAS
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
164.160.192.0/21 Origin: 37661 NRaE1-AS, NG
164.160.192.0/21 Transit: 37288 WACREN, SN
202.14.117.0/24 Origin: 17827 STOU-AS-TH Sukhothai Thammathirat Open U
202.14.117.0/24 Transit: 4621 UNINET-AS-AP UNINET-, TH
202.46.0.0/20 Origin: 147171 IDNIC-BRIN-AS-ID Badan Riset dan Inovasi
202.46.0.0/20 Transit: 64302 IDNIC-IDREN-AS-ID IDREN - Indonesia Rese
202.46.240.0/20 Origin: 147171 IDNIC-BRIN-AS-ID Badan Riset dan Inovasi
202.46.240.0/20 Transit: 64302 IDNIC-IDREN-AS-ID IDREN - Indonesia Rese
202.46.245.0/24 Origin: 147171 IDNIC-BRIN-AS-ID Badan Riset dan Inovasi
202.46.245.0/24 Transit: 64302 IDNIC-IDREN-AS-ID IDREN - Indonesia Rese
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 /10:3 /11:8 /12:24
/13:31 /14:61 /15:158 /16:2216 /17:451 /18:475
/19:598 /20:887 /21:896 /22:1482 /23:1577 /24:11116
/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 510 531 KENET-AS, KE
8895 130 135 ISU Internet Services Unit ISU, SA
8075 116 661 MICROSOFT-CORP-MSN-AS-BLOCK, US
327700 42 48 MoRENet, MZ
23024 37 95 OCDE, US
32440 37 64 LONI, US
3267 34 75 NIKS, RU
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
46115 32 35 LUTHER, US
200521 32 55 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 13:31 14:92 23:9 24:3 31:1
35:7 37:8 38:10 40:1 41:252 42:10
44:5 45:57 46:5 47:1 49:11 50:7
52:6 58:1 59:19 60:6 61:3 62:14
63:38 64:51 65:1 66:54 67:47 68:18
69:27 70:2 71:1 72:8 74:57 76:43
77:10 78:3 79:10 80:12 81:26 82:5
83:7 84:5 85:43 86:5 87:1 89:11
91:48 92:4 93:13 94:6 95:3 96:5
97:1 98:2 101:1 102:14 103:326 104:81
107:2 108:11 109:4 111:17 113:6 114:24
116:9 117:61 118:34 119:25 121:26 122:8
123:8 124:42 125:5 128:52 129:38 130:96
131:72 132:65 133:154 134:109 135:4 136:197
137:55 138:62 139:6 140:36 141:4 142:56
143:26 144:32 145:6 146:135 147:65 148:195
149:14 150:46 151:11 152:140 153:15 154:38
155:71 156:133 157:28 158:33 159:122 160:30
161:26 162:40 163:65 164:20 165:48 166:3
167:29 168:119 169:7 170:105 171:1 172:2
173:8 175:17 176:1 177:6 178:2 179:13
180:16 181:1 182:9 184:7 185:80 186:3
187:21 188:14 189:3 190:18 191:13 192:1518
193:264 194:131 195:69 196:148 197:322 198:492
199:300 200:305 201:38 202:647 203:443 204:391
205:142 206:214 207:230 208:75 209:115 210:216
211:3 212:166 213:10 214:8 216:97 217:11
218:21 219:5 220:17 222:2 223:15
End of report
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