[REN-BGP-stats-all] IPv4 R&E Routing Table Report - Internet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Thu Nov 28 22:00:44 UTC 2024
IPv4 R&E Routing Table Report 22:00 GMT Thu 28 Nov, 2024
IPv4 BGP Table (R&E) as seen at Internet2.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/Internet2/
Analysis Summary
----------------
BGP routing table entries examined: 24379
Prefixes after maximum aggregation (per Origin AS): 13489
Deaggregation factor: 1.81
Unique aggregates announced (without unneeded subnets): 15833
Number of IPv4 prefixes with a valid ROA: 12504
Number of IPv4 prefixes with an invalid ROA: 21
Number of IPv4 prefixes with no ROA: 11854
Total ASes present in the Internet Routing Table: 2774
Prefixes per ASN: 8.79
Origin-only ASes present in the Internet Routing Table: 2400
Origin ASes announcing only one prefix: 1063
Transit ASes present in the Internet Routing Table: 374
Transit-only ASes present in the Internet Routing Table: 65
Paths with bogon ASNs present in the IPv4 Routing Table: 0
Average AS path length visible in the Internet Routing Table: 3.3
Max AS path length visible: 27
Max AS path prepend of ASN (138136) 20
Prefixes from unregistered ASNs in the Routing Table: 1
Number of instances of unregistered ASNs: 1
Number of 32-bit ASNs allocated by the RIRs: 45925
Number of 32-bit ASNs visible in the Routing Table: 675
Prefixes from 32-bit ASNs in the Routing Table: 1864
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: 8
Number of addresses announced to Internet: 241975376
Equivalent to 14 /8s, 108 /16s and 64 /24s
Percentage of available address space announced: 6.5
Percentage of allocated address space announced: 6.5
Percentage of available address space allocated: 100.1
Percentage of address space in use by end-sites: 99.6
Total number of prefixes smaller than registry allocations: 3357
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4633
Total APNIC prefixes after maximum aggregation: 2256
APNIC Deaggregation factor: 2.05
Prefixes being announced from the APNIC address blocks: 4738
Unique aggregates announced from the APNIC address blocks: 2722
APNIC Region origin ASes present in the Internet Routing Table: 558
APNIC Prefixes per ASN: 8.49
APNIC Region origin ASes announcing only one prefix: 236
APNIC Region transit ASes present in the Internet Routing Table: 59
Average APNIC Region AS path length visible: 3.9
Max APNIC Region AS path length visible: 27
Number of APNIC region 32-bit ASNs visible in the Routing Table: 210
Number of APNIC addresses announced to Internet: 45581376
Equivalent to 2 /8s, 183 /16s and 132 /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: 13552
Total ARIN prefixes after maximum aggregation: 7654
ARIN Deaggregation factor: 1.77
Prefixes being announced from the ARIN address blocks: 13277
Unique aggregates announced from the ARIN address blocks: 9014
ARIN Region origin ASes present in the Internet Routing Table: 1286
ARIN Prefixes per ASN: 10.32
ARIN Region origin ASes announcing only one prefix: 447
ARIN Region transit ASes present in the Internet Routing Table: 154
Average ARIN Region AS path length visible: 2.9
Max ARIN Region AS path length visible: 15
Number of ARIN region 32-bit ASNs visible in the Routing Table: 215
Number of ARIN addresses announced to Internet: 131115600
Equivalent to 7 /8s, 208 /16s and 170 /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, 45/8, 47/8, 48/8, 50/8, 52/8,
54/8, 55/8, 56/8, 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: 3590
Total RIPE prefixes after maximum aggregation: 2865
RIPE Deaggregation factor: 1.25
Prefixes being announced from the RIPE address blocks: 3746
Unique aggregates announced from the RIPE address blocks: 3141
RIPE Region origin ASes present in the Internet Routing Table: 657
RIPE Prefixes per ASN: 5.70
RIPE Region origin ASes announcing only one prefix: 294
RIPE Region transit ASes present in the Internet Routing Table: 107
Average RIPE Region AS path length visible: 3.7
Max RIPE Region AS path length visible: 13
Number of RIPE region 32-bit ASNs visible in the Routing Table: 155
Number of RIPE addresses announced to Internet: 58562688
Equivalent to 3 /8s, 125 /16s and 152 /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,
53/8, 57/8, 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: 1525
Total LACNIC prefixes after maximum aggregation: 540
LACNIC Deaggregation factor: 2.82
Prefixes being announced from the LACNIC address blocks: 1531
Unique aggregates announced from the LACNIC address blocks: 728
LACNIC Region origin ASes present in the Internet Routing Table: 155
LACNIC Prefixes per ASN: 9.88
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: 4.0
Max LACNIC Region AS path length visible: 13
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 65
Number of LACNIC addresses announced to Internet: 4232768
Equivalent to 0 /8s, 64 /16s and 150 /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: 1078
Total AfriNIC prefixes after maximum aggregation: 173
AfriNIC Deaggregation factor: 6.23
Prefixes being announced from the AfriNIC address blocks: 1079
Unique aggregates announced from the AfriNIC address blocks: 220
AfriNIC Region origin ASes present in the Internet Routing Table: 52
AfriNIC Prefixes per ASN: 20.75
AfriNIC Region origin ASes announcing only one prefix: 32
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 30
Number of AfriNIC addresses announced to Internet: 2479104
Equivalent to 0 /8s, 37 /16s and 212 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 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 598 2202 464 SINET-AS Research Organization of Informa
7497 447 180 24 CSTNET-AS-AP Computer Network Information
1237 193 74 145 KREONET-AS-KR KISTI, KR
58647 181 18 2 KAGAWAU-AS Kagawa University, JP
7575 171 313 114 AARNET-AS-AP Australian Academic and Rese
4538 139 4192 71 ERX-CERNET-BKB China Education and Resear
55824 132 18 18 NKN-CORE-NW NKN Core Network, IN
4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, Tha
4621 65 37 10 UNINET-AS-AP UNINET-, TH
2697 60 4 35 ERX-ERNET-AS Education and Research Netwo
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 4026 4853 1940 AMAZON-02, US
14618 1013 4443 764 AMAZON-AES, US
668 205 648 174 DNIC-AS-00668, US
376 201 162 150 RISQ-AS, CA
5786 198 16 1 UPRENET, PR
2920 175 34 7 LACOE, US
2152 152 507 97 CENIC-2152, US
18558 140 18 4 NETBLK-RCOEK, US
81 134 517 33 NCREN, US
1 128 2 49 LVLT-1, US
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 283 1899 249 DFN Verein zur Foerderung eines Deutschen
786 186 1767 183 JANET Jisc Services Limited, GB
8895 132 24 5 ISU Internet Services Unit ISU, SA
559 114 533 104 SWITCH Peering requests: peering at switch.c
1103 96 1743 83 SURFNET-NL SURFnet, The Netherlands, NL
2614 93 26 73 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
8987 80 226 57 AMAZON EXPANSION, IE
1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnolog
553 78 462 78 BELWUE BelWue-Koordination, DE
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 294 178 44 Rede Nacional de Ensino e Pesquisa, BR
28391 154 10 68 Universidad Juarez Autonoma de Tabasco, M
11340 110 25 53 Red Universitaria Nacional, CL
271640 67 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
61468 51 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 46 16 1 Red de Interconexion Universitaria, AR
3596 40 8 4 Universidad Autonoma Metropolitana, MX
28614 38 2 2 Fundacao Universidade Regional de Blumena
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
36914 471 82 3 KENET-AS, KE
2018 381 319 71 TENET-1, ZA
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
327700 14 16 1 MoRENet, MZ
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/Internet2/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 4026 4853 1940 AMAZON-02, US
14618 1013 4443 764 AMAZON-AES, US
2907 598 2202 464 SINET-AS Research Organization of Informa
36914 471 82 3 KENET-AS, KE
7497 447 180 24 CSTNET-AS-AP Computer Network Information
2018 381 319 71 TENET-1, ZA
1916 294 178 44 Rede Nacional de Ensino e Pesquisa, BR
680 283 1899 249 DFN Verein zur Foerderung eines Deutschen
668 205 648 174 DNIC-AS-00668, US
376 201 162 150 RISQ-AS, CA
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
36914 471 468 KENET-AS, KE
7497 447 423 CSTNET-AS-AP Computer Network Information Cente
2018 381 310 TENET-1, ZA
1916 294 250 Rede Nacional de Ensino e Pesquisa, BR
14618 1013 249 AMAZON-AES, US
5786 198 197 UPRENET, PR
58647 181 179 KAGAWAU-AS Kagawa University, JP
2920 175 168 LACOE, US
18558 140 136 NETBLK-RCOEK, US
2907 598 134 SINET-AS Research Organization of Information a
Complete listing at https://bgp.nsrc.org/REN/Internet2/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
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-badAS
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
64.186.3.0/24 Origin: 16509 AMAZON-02, US
64.186.3.0/24 Transit: 11537 INTERNET2-RESEARCH-EDU, US
103.165.160.0/24 Origin: 16509 AMAZON-02, US
103.165.160.0/24 Transit: 11537 INTERNET2-RESEARCH-EDU, US
164.160.192.0/21 Origin: 37661 NRaE1-AS, NG
164.160.192.0/21 Transit: 37288 WACREN, SN
198.135.168.0/24 Origin: 14618 AMAZON-AES, US
198.135.168.0/24 Transit: 16509 AMAZON-02, US
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
Complete listing at https://bgp.nsrc.org/REN/Internet2/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 /10:1 /11:3 /12:18
/13:28 /14:58 /15:172 /16:2070 /17:490 /18:507
/19:639 /20:996 /21:1105 /22:1710 /23:1842 /24:14445
/25:52 /26:71 /27:98 /28:11 /29:59 /30:0
/31:0 /32:3
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
16509 672 4026 AMAZON-02, US
36914 458 471 KENET-AS, KE
14618 325 1013 AMAZON-AES, US
8895 127 132 ISU Internet Services Unit ISU, SA
1916 76 294 Rede Nacional de Ensino e Pesquisa, BR
1 42 128 LVLT-1, US
23024 37 95 OCDE, US
32440 37 63 LONI, US
3267 34 76 NIKS, RU
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:3 3:167 4:2 5:20 6:4 8:2
12:2 13:56 14:93 15:105 16:129 18:156
23:48 24:3 31:3 34:2 35:37 37:8
38:11 40:5 41:160 42:11 44:6 45:74
46:10 47:1 49:10 50:12 52:831 54:178
58:1 59:19 60:5 61:3 62:7 63:38
64:142 65:25 66:96 67:69 68:27 69:56
70:25 71:16 72:19 74:82 75:1 76:49
77:11 78:3 79:10 80:12 81:25 82:7
83:7 84:11 85:49 86:5 87:2 88:1
89:19 91:53 92:4 93:45 94:2 95:2
96:7 97:1 98:14 99:68 101:1 102:14
103:331 104:131 107:8 108:37 109:7 111:21
113:1 114:24 115:1 116:14 117:66 118:33
119:24 121:28 122:11 123:8 124:42 125:5
128:56 129:40 130:164 131:72 132:65 133:154
134:112 135:2 136:224 137:68 138:66 139:20
140:50 141:13 142:73 143:33 144:42 145:4
146:138 147:75 148:206 149:19 150:43 151:36
152:149 153:14 154:40 155:103 156:136 157:42
158:41 159:169 160:35 161:40 162:74 163:75
164:23 165:75 166:5 167:22 168:174 169:15
170:183 171:1 172:19 173:38 174:2 175:16
176:4 177:6 178:1 179:14 180:16 181:1
182:11 184:9 185:86 186:3 187:21 188:15
189:2 190:18 191:13 192:1593 193:283 194:126
195:71 196:147 197:340 198:525 199:348 200:330
201:37 202:648 203:451 204:409 205:167 206:243
207:264 208:133 209:149 210:219 211:3 212:171
213:19 214:8 216:209 217:11 218:21 219:6
220:17 222:2 223:15
End of report
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