[REN-BGP-stats-all] IPv4 R&E Routing Table Report - CENIC (R&E) view
REN Routing Table Report
cscora at frr.nsrc.org
Mon Mar 14 22:05:31 UTC 2022
IPv4 R&E Routing Table Report 22:05 GMT Mon 14 Mar, 2022
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: 22352
Prefixes after maximum aggregation (per Origin AS): 12410
Deaggregation factor: 1.80
Unique aggregates announced (without unneeded subnets): 14561
Number of IPv4 prefixes with a valid ROA: 7300
Number of IPv4 prefixes with an invalid ROA: 14
Number of IPv4 prefixes with no ROA: 15038
Total ASes present in the Internet Routing Table: 2767
Prefixes per ASN: 8.08
Origin-only ASes present in the Internet Routing Table: 2393
Origin ASes announcing only one prefix: 1096
Transit ASes present in the Internet Routing Table: 374
Transit-only ASes present in the Internet Routing Table: 50
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 16
Max AS path prepend of ASN (211089) 11
Prefixes from unregistered ASNs in the Routing Table: 6
Number of instances of unregistered ASNs: 6
Number of 32-bit ASNs allocated by the RIRs: 38793
Number of 32-bit ASNs visible in the Routing Table: 608
Prefixes from 32-bit ASNs in the Routing Table: 1635
Number of bogon 32-bit ASNs visible in the Routing Table: 0
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 5
Number of addresses announced to Internet: 288266752
Equivalent to 17 /8s, 46 /16s and 154 /24s
Percentage of available address space announced: 7.8
Percentage of allocated address space announced: 7.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.5
Total number of prefixes smaller than registry allocations: 2948
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4641
Total APNIC prefixes after maximum aggregation: 2303
APNIC Deaggregation factor: 2.02
Prefixes being announced from the APNIC address blocks: 4711
Unique aggregates announced from the APNIC address blocks: 2681
APNIC Region origin ASes present in the Internet Routing Table: 576
APNIC Prefixes per ASN: 8.18
APNIC Region origin ASes announcing only one prefix: 246
APNIC Region transit ASes present in the Internet Routing Table: 63
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 13
Number of APNIC region 32-bit ASNs visible in the Routing Table: 217
Number of APNIC addresses announced to Internet: 46706944
Equivalent to 2 /8s, 200 /16s and 177 /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, 131072-151865
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: 11957
Total ARIN prefixes after maximum aggregation: 6565
ARIN Deaggregation factor: 1.82
Prefixes being announced from the ARIN address blocks: 11796
Unique aggregates announced from the ARIN address blocks: 7934
ARIN Region origin ASes present in the Internet Routing Table: 1254
ARIN Prefixes per ASN: 9.41
ARIN Region origin ASes announcing only one prefix: 449
ARIN Region transit ASes present in the Internet Routing Table: 165
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 14
Number of ARIN region 32-bit ASNs visible in the Routing Table: 167
Number of ARIN addresses announced to Internet: 174315264
Equivalent to 10 /8s, 99 /16s and 215 /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: 3426
Total RIPE prefixes after maximum aggregation: 2784
RIPE Deaggregation factor: 1.23
Prefixes being announced from the RIPE address blocks: 3516
Unique aggregates announced from the RIPE address blocks: 2882
RIPE Region origin ASes present in the Internet Routing Table: 666
RIPE Prefixes per ASN: 5.28
RIPE Region origin ASes announcing only one prefix: 311
RIPE Region transit ASes present in the Internet Routing Table: 97
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 16
Number of RIPE region 32-bit ASNs visible in the Routing Table: 133
Number of RIPE addresses announced to Internet: 59702784
Equivalent to 3 /8s, 142 /16s and 254 /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
196608-213403
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: 1396
Total LACNIC prefixes after maximum aggregation: 565
LACNIC Deaggregation factor: 2.47
Prefixes being announced from the LACNIC address blocks: 1396
Unique aggregates announced from the LACNIC address blocks: 765
LACNIC Region origin ASes present in the Internet Routing Table: 166
LACNIC Prefixes per ASN: 8.41
LACNIC Region origin ASes announcing only one prefix: 68
LACNIC Region transit ASes present in the Internet Routing Table: 22
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 12
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 65
Number of LACNIC addresses announced to Internet: 4672256
Equivalent to 0 /8s, 71 /16s and 75 /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: 926
Total AfriNIC prefixes after maximum aggregation: 187
AfriNIC Deaggregation factor: 4.95
Prefixes being announced from the AfriNIC address blocks: 928
Unique aggregates announced from the AfriNIC address blocks: 294
AfriNIC Region origin ASes present in the Internet Routing Table: 50
AfriNIC Prefixes per ASN: 18.56
AfriNIC Region origin ASes announcing only one prefix: 22
AfriNIC Region transit ASes present in the Internet Routing Table: 14
Average AfriNIC Region AS path length visible: 4.5
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: 2868224
Equivalent to 0 /8s, 43 /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 581 2124 458 SINET-AS Research Organization of Infor
7497 432 182 24 CSTNET-AS-AP Computer Network Informati
1237 186 74 135 KREONET-AS-KR KISTI, KR
7575 176 330 123 AARNET-AS-AP Australian Academic and Re
58647 167 18 2 KAGAWAU-AS Kagawa University, JP
55824 129 19 23 NKN-CORE-NW NKN Core Network, IN
4538 128 4192 72 ERX-CERNET-BKB China Education and Rese
4621 79 37 10 UNINET-AS-AP UNINET-, TH
4762 65 4 1 MAHIDOL-BORDER-AS Mahidol University, T
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
16509 2711 4306 1012 AMAZON-02, US
14618 582 3987 446 AMAZON-AES, US
7896 252 51 7 NU-AS, US
668 211 702 179 DNIC-AS-00668, US
8075 206 10885 187 MICROSOFT-CORP-MSN-AS-BLOCK, US
376 203 178 152 RISQ-AS, CA
5786 182 16 1 UPRENET, PR
2152 150 507 90 CSUNET-NW, US
18558 135 18 4 NETBLK-RCOEK, US
270 119 329 88 AS270, 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
680 279 1967 245 DFN Verein zur Foerderung eines Deutsch
786 186 1774 183 JANET Jisc Services Limited, GB
8895 141 24 4 ISU Internet Services Unit ISU, SA
559 115 550 106 SWITCH Peering requests: peering at switch
1103 99 1520 86 SURFNET-NL SURFnet, The Netherlands, NL
137 82 677 77 ASGARR Consortium GARR, IT
553 73 449 73 BELWUE BelWue-Koordination, DE
2614 69 30 59 ROEDUNET, RO
2200 65 615 60 FR-RENATER Reseau National de telecommu
1930 58 81 53 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 157 208 45 Rede Nacional de Ensino e Pesquisa, BR
28391 152 10 66 Universidad Juarez Autonoma de Tabasco,
11340 95 24 54 Red Universitaria Nacional, CL
1251 60 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo
19611 45 17 2 Associacao Antonio Vieira - Unisinos, B
4270 44 16 1 Red de Interconexion Universitaria, AR
61468 41 3 15 CEDIA, EC
28614 38 2 2 Fundacao Universidade Regional de Blume
263282 37 5 12 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA
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 373 319 74 TENET-1, ZA
36914 207 82 3 KENET-AS, KE
2561 72 5 31 EUN, EG
8094 50 48 4 PUKNET, ZA
327687 39 28 3 RENU, UG
327700 34 16 1 MoRENet, MZ
6879 24 2 9 ENSTINET-, EG
37182 17 8 1 TERNET, TZ
37074 13 8 2 UG-AS, GH
37501 11 49 6 UOFS, 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
16509 2711 4306 1012 AMAZON-02, US
14618 582 3987 446 AMAZON-AES, US
2907 581 2124 458 SINET-AS Research Organization of Infor
7497 432 182 24 CSTNET-AS-AP Computer Network Informati
2018 373 319 74 TENET-1, ZA
680 279 1967 245 DFN Verein zur Foerderung eines Deutsch
7896 252 51 7 NU-AS, US
668 211 702 179 DNIC-AS-00668, US
36914 207 82 3 KENET-AS, KE
8075 206 10885 187 MICROSOFT-CORP-MSN-AS-BLOCK, US
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 432 408 CSTNET-AS-AP Computer Network Information Cente
2018 373 299 TENET-1, ZA
7896 252 245 NU-AS, US
36914 207 204 KENET-AS, KE
5786 182 181 UPRENET, PR
58647 167 165 KAGAWAU-AS Kagawa University, JP
8895 141 137 ISU Internet Services Unit ISU, SA
14618 582 136 AMAZON-AES, US
18558 135 131 NETBLK-RCOEK, US
2907 581 123 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
394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US
22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US
22226 UNALLOCATED 156.1.0.0/16 2152 CSUNET-NW, US
19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US
395514 UNALLOCATED 205.213.88.0/24 2381 WISCNET1-AS, US
394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-badAS
Prefixes from the Special Purpose Address Registry (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.88.99.0/24 1103 SURFNET-NL SURFnet, The Netherlands, NL
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
103.151.24.0/24 Origin: 16509 AMAZON-02, US
103.151.24.0/24 Transit: 2152 CSUNET-NW, US
192.31.196.0/24 Origin: 112 UNASSIGNED
192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL
192.88.99.0/24 Origin: 1103 SURFNET-NL SURFnet, The Netherlands, NL
192.88.99.0/24 Transit: 11537 INTERNET2-RESEARCH-EDU, US
198.135.168.0/24 Origin: 14618 AMAZON-AES, US
198.135.168.0/24 Transit: 16509 AMAZON-02, US
216.169.147.0/24 Origin: 14618 AMAZON-AES, US
216.169.147.0/24 Transit: 16509 AMAZON-02, US
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 /12:28
/13:33 /14:80 /15:198 /16:2149 /17:457 /18:472
/19:612 /20:989 /21:1005 /22:1593 /23:1745 /24:12979
/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
16509 740 2711 AMAZON-02, US
36914 194 207 KENET-AS, KE
14618 193 582 AMAZON-AES, US
8895 136 141 ISU Internet Services Unit ISU, SA
23024 53 114 OCDE, US
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
25977 31 45 HCCS, US
263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN
327700 30 34 MoRENet, MZ
18632 29 55 VOLCANO-VISION, US
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:4 3:78 4:2 5:16 6:4 8:2
12:1 13:95 14:85 15:48 16:2 18:50
23:42 24:3 31:6 35:2 37:7 38:9
40:3 41:122 42:9 44:5 45:49 46:11
47:1 49:10 50:11 52:682 54:235 58:1
59:20 60:4 61:3 62:7 63:42 64:140
65:9 66:72 67:63 68:17 69:46 70:28
71:9 72:18 74:43 75:128 76:165 77:7
78:3 79:10 80:15 81:28 82:5 83:6
84:4 85:42 86:4 87:1 88:1 89:12
91:52 92:1 93:23 94:4 95:5 96:6
97:1 98:11 99:178 101:6 102:12 103:329
104:109 106:1 107:25 108:20 109:12 110:3
111:21 113:1 114:23 116:5 117:61 118:32
119:22 121:27 122:11 123:8 124:39 125:4
128:81 129:185 130:146 131:103 132:56 133:141
134:99 135:1 136:186 137:101 138:9 139:16
140:50 141:3 142:58 143:33 144:64 145:2
146:129 147:65 148:200 149:16 150:48 151:8
152:81 153:13 154:26 155:61 156:70 157:31
158:45 159:119 160:30 161:26 162:53 163:73
164:45 165:63 166:1 167:23 168:165 169:10
170:122 171:1 172:10 173:19 174:1 175:29
176:12 177:12 178:2 179:12 180:21 182:6
184:3 185:63 186:3 187:19 188:14 189:5
190:33 191:33 192:1504 193:276 194:126 195:79
196:163 197:116 198:527 199:322 200:243 201:39
202:642 203:430 204:335 205:195 206:217 207:191
208:112 209:137 210:183 211:13 212:147 213:16
214:7 216:142 217:11 218:22 219:6 220:16
222:5 223:3
End of report
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