[REN-BGP-stats-all] IPv4 R&E Routing Table Report - Internet2 (R&E) view
REN Routing Table Report
cscora at frr.nsrc.org
Thu Jul 6 22:00:42 UTC 2023
IPv4 R&E Routing Table Report 22:00 GMT Thu 06 Jul, 2023
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: 23227
Prefixes after maximum aggregation (per Origin AS): 12688
Deaggregation factor: 1.83
Unique aggregates announced (without unneeded subnets): 14752
Number of IPv4 prefixes with a valid ROA: 9017
Number of IPv4 prefixes with an invalid ROA: 22
Number of IPv4 prefixes with no ROA: 14188
Total ASes present in the Internet Routing Table: 2739
Prefixes per ASN: 8.48
Origin-only ASes present in the Internet Routing Table: 2362
Origin ASes announcing only one prefix: 1034
Transit ASes present in the Internet Routing Table: 377
Transit-only ASes present in the Internet Routing Table: 73
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: 18
Max AS path prepend of ASN (395156) 12
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: 42238
Number of 32-bit ASNs visible in the Routing Table: 621
Prefixes from 32-bit ASNs in the Routing Table: 1851
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: 242235128
Equivalent to 14 /8s, 112 /16s and 54 /24s
Percentage of available address space announced: 6.5
Percentage of allocated address space announced: 6.5
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: 3052
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4600
Total APNIC prefixes after maximum aggregation: 2239
APNIC Deaggregation factor: 2.05
Prefixes being announced from the APNIC address blocks: 4675
Unique aggregates announced from the APNIC address blocks: 2638
APNIC Region origin ASes present in the Internet Routing Table: 534
APNIC Prefixes per ASN: 8.75
APNIC Region origin ASes announcing only one prefix: 224
APNIC Region transit ASes present in the Internet Routing Table: 57
Average APNIC Region AS path length visible: 3.8
Max APNIC Region AS path length visible: 13
Number of APNIC region 32-bit ASNs visible in the Routing Table: 200
Number of APNIC addresses announced to Internet: 45779008
Equivalent to 2 /8s, 186 /16s and 136 /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: 12416
Total ARIN prefixes after maximum aggregation: 6864
ARIN Deaggregation factor: 1.81
Prefixes being announced from the ARIN address blocks: 12197
Unique aggregates announced from the ARIN address blocks: 8071
ARIN Region origin ASes present in the Internet Routing Table: 1238
ARIN Prefixes per ASN: 9.85
ARIN Region origin ASes announcing only one prefix: 427
ARIN Region transit ASes present in the Internet Routing Table: 163
Average ARIN Region AS path length visible: 2.9
Max ARIN Region AS path length visible: 18
Number of ARIN region 32-bit ASNs visible in the Routing Table: 187
Number of ARIN addresses announced to Internet: 131588632
Equivalent to 7 /8s, 215 /16s and 226 /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: 3632
Total RIPE prefixes after maximum aggregation: 2861
RIPE Deaggregation factor: 1.27
Prefixes being announced from the RIPE address blocks: 3771
Unique aggregates announced from the RIPE address blocks: 3076
RIPE Region origin ASes present in the Internet Routing Table: 679
RIPE Prefixes per ASN: 5.55
RIPE Region origin ASes announcing only one prefix: 297
RIPE Region transit ASes present in the Internet Routing Table: 106
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 12
Number of RIPE region 32-bit ASNs visible in the Routing Table: 143
Number of RIPE addresses announced to Internet: 57988096
Equivalent to 3 /8s, 116 /16s and 212 /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: 1477
Total LACNIC prefixes after maximum aggregation: 544
LACNIC Deaggregation factor: 2.72
Prefixes being announced from the LACNIC address blocks: 1482
Unique aggregates announced from the LACNIC address blocks: 734
LACNIC Region origin ASes present in the Internet Routing Table: 160
LACNIC Prefixes per ASN: 9.26
LACNIC Region origin ASes announcing only one prefix: 60
LACNIC Region transit ASes present in the Internet Routing Table: 25
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 12
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 64
Number of LACNIC addresses announced to Internet: 4205216
Equivalent to 0 /8s, 64 /16s and 42 /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: 1095
Total AfriNIC prefixes after maximum aggregation: 173
AfriNIC Deaggregation factor: 6.33
Prefixes being announced from the AfriNIC address blocks: 1094
Unique aggregates announced from the AfriNIC address blocks: 225
AfriNIC Region origin ASes present in the Internet Routing Table: 51
AfriNIC Prefixes per ASN: 21.45
AfriNIC Region origin ASes announcing only one prefix: 26
AfriNIC Region transit ASes present in the Internet Routing Table: 9
Average AfriNIC Region AS path length visible: 2.9
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 27
Number of AfriNIC addresses announced to Internet: 2668032
Equivalent to 0 /8s, 40 /16s and 182 /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 597 2147 466 SINET-AS Research Organization of Infor
7497 434 180 23 CSTNET-AS-AP Computer Network Informati
1237 192 74 139 KREONET-AS-KR KISTI, KR
58647 178 18 2 KAGAWAU-AS Kagawa University, JP
7575 177 329 120 AARNET-AS-AP Australian Academic and Re
4538 130 4192 73 ERX-CERNET-BKB China Education and Rese
55824 120 18 13 NKN-CORE-NW NKN Core Network, IN
4621 70 37 10 UNINET-AS-AP UNINET-, TH
9411 66 16 2 NONTRINET-AS-AP Kasetsart University, T
4762 65 4 1 MAHIDOL-BORDER-AS Mahidol University, T
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 3433 4677 1488 AMAZON-02, US
14618 791 4013 589 AMAZON-AES, US
668 217 636 180 DNIC-AS-00668, US
376 202 178 150 RISQ-AS, CA
5786 198 16 1 UPRENET, PR
2152 143 507 93 CSUNET-NW, US
18558 134 18 4 NETBLK-RCOEK, US
81 128 521 31 NCREN, US
1 122 2 46 LVLT-1, US
270 117 329 82 AS270, 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
680 284 1919 250 DFN Verein zur Foerderung eines Deutsch
786 186 1767 183 JANET Jisc Services Limited, GB
8895 176 24 5 ISU Internet Services Unit ISU, SA
559 112 533 104 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 74 465 74 BELWUE BelWue-Koordination, DE
1930 65 81 60 RCCN Fundacao para a Ciencia e a Tecnol
2200 64 599 59 FR-RENATER Reseau National de telecommu
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 258 192 43 Rede Nacional de Ensino e Pesquisa, BR
28391 153 10 67 Universidad Juarez Autonoma de Tabasco,
11340 103 24 47 Red Universitaria Nacional, CL
2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo
1251 57 36 15 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
4270 48 16 1 Red de Interconexion Universitaria, AR
61468 42 3 14 CEDIA, EC
28571 40 39 18 UNIVERSIDADE DE SAO PAULO, BR
28614 38 2 2 Fundacao Universidade Regional de Blume
19611 37 17 2 Associacao Antonio Vieira - Unisinos, B
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
2018 382 319 72 TENET-1, ZA
36914 259 82 3 KENET-AS, KE
327687 161 28 3 RENU, UG
8094 48 48 15 PUKNET, ZA
327700 41 16 1 MoRENet, MZ
37215 37 8 1 MAREN, MW
3208 32 2 1 ARN, DZ
6879 24 2 9 ENSTINET-, EG
37074 13 8 2 UG-AS, GH
37501 11 49 6 UOFS, 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 3433 4677 1488 AMAZON-02, US
14618 791 4013 589 AMAZON-AES, US
2907 597 2147 466 SINET-AS Research Organization of Infor
7497 434 180 23 CSTNET-AS-AP Computer Network Informati
2018 382 319 72 TENET-1, ZA
680 284 1919 250 DFN Verein zur Foerderung eines Deutsch
36914 259 82 3 KENET-AS, KE
1916 258 192 43 Rede Nacional de Ensino e Pesquisa, BR
668 217 636 180 DNIC-AS-00668, US
376 202 178 150 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
7497 434 411 CSTNET-AS-AP Computer Network Information Cente
2018 382 310 TENET-1, ZA
36914 259 256 KENET-AS, KE
1916 258 215 Rede Nacional de Ensino e Pesquisa, BR
14618 791 202 AMAZON-AES, US
5786 198 197 UPRENET, PR
58647 178 176 KAGAWAU-AS Kagawa University, JP
8895 176 171 ISU Internet Services Unit ISU, SA
327687 161 158 RENU, UG
2907 597 131 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
29867 UNALLOCATED 64.202.80.0/20 22742 CT-EDU-NET, US
138933 UNALLOCATED 103.137.86.0/24 24490 TEIN2-SG-AP Trans-Eurasia In
394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US
33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US
29867 UNALLOCATED 192.160.243.0/24 22742 CT-EDU-NET, US
29867 UNALLOCATED 192.160.244.0/24 22742 CT-EDU-NET, US
394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, 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
64.202.80.0/20 Origin: 29867 UNASSIGNED
64.202.80.0/20 Transit: 22742 CT-EDU-NET, US
76.76.19.0/24 Origin: 16509 AMAZON-02, US
76.76.19.0/24 Transit: 11537 INTERNET2-RESEARCH-EDU, US
102.36.194.0/23 Origin: 2018 TENET-1, ZA
102.36.194.0/23 Transit: 11537 INTERNET2-RESEARCH-EDU, US
103.137.86.0/24 Origin: 138933 UNASSIGNED
103.137.86.0/24 Transit: 24490 TEIN2-SG-AP Trans-Eurasia Information Ne
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 /10:2 /11:3 /12:17
/13:25 /14:58 /15:175 /16:2068 /17:483 /18:471
/19:613 /20:985 /21:1046 /22:1707 /23:1794 /24:13405
/25:89 /26:67 /27:149 /28:7 /29:56 /30:0
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
16509 506 3433 AMAZON-02, US
14618 256 791 AMAZON-AES, US
36914 247 259 KENET-AS, KE
8895 171 176 ISU Internet Services Unit ISU, SA
32440 79 108 LONI, US
23024 52 113 OCDE, US
1 40 122 LVLT-1, US
1916 39 258 Rede Nacional de Ensino e Pesquisa, BR
327700 35 41 MoRENet, MZ
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 3:103 4:2 5:19 6:4 8:2
12:1 13:60 14:89 15:95 16:112 18:102
23:48 24:3 31:7 34:2 35:13 38:9
40:1 41:146 42:10 44:8 45:59 46:10
47:1 49:9 50:9 52:842 54:248 58:2
59:19 60:4 61:3 62:11 63:37 64:156
65:13 66:72 67:63 68:18 69:45 70:27
71:16 72:16 74:77 76:48 77:11 78:3
79:10 80:13 81:26 82:7 83:6 84:14
85:44 86:10 87:2 88:1 89:13 91:55
92:2 93:4 94:4 95:2 96:7 97:1
98:13 99:67 101:2 102:30 103:283 104:119
107:1 108:33 109:11 111:16 114:23 115:1
116:10 117:61 118:32 119:18 121:29 122:11
123:8 124:38 125:4 128:87 129:49 130:141
131:61 132:62 133:152 134:107 135:3 136:215
137:146 138:13 139:17 140:55 141:5 142:57
143:36 144:40 145:2 146:132 147:66 148:204
149:16 150:40 151:17 152:148 153:14 154:31
155:83 156:70 157:34 158:43 159:164 160:33
161:40 162:66 163:80 164:22 165:57 166:2
167:22 168:179 169:12 170:141 171:1 172:10
173:23 174:2 175:19 176:12 177:6 178:1
179:13 180:15 181:1 182:1 184:4 185:81
186:3 187:17 188:15 189:3 190:17 191:13
192:1520 193:312 194:129 195:83 196:201 197:164
198:508 199:337 200:310 201:38 202:640 203:440
204:377 205:157 206:208 207:200 208:113 209:142
210:184 211:3 212:168 213:16 214:8 216:167
217:10 218:22 219:6 220:16 222:2 223:14
End of report
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