[REN-BGP-stats-all] IPv4 R&E Routing Table Report - AIT (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Fri Dec 15 20:25:40 UTC 2023
IPv4 R&E Routing Table Report 20:25 GMT Fri 15 Dec, 2023
IPv4 BGP Table (R&E) as seen at AIT.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/AIT/
Analysis Summary
----------------
BGP routing table entries examined: 22986
Prefixes after maximum aggregation (per Origin AS): 11161
Deaggregation factor: 2.06
Unique aggregates announced (without unneeded subnets): 12563
Number of IPv4 prefixes with a valid ROA: 9088
Number of IPv4 prefixes with an invalid ROA: 385
Number of IPv4 prefixes with no ROA: 13513
Total ASes present in the Internet Routing Table: 2963
Prefixes per ASN: 7.76
Origin-only ASes present in the Internet Routing Table: 2554
Origin ASes announcing only one prefix: 1154
Transit ASes present in the Internet Routing Table: 409
Transit-only ASes present in the Internet Routing Table: 72
Paths with bogon ASNs present in the IPv4 Routing Table: 16
Average AS path length visible in the Internet Routing Table: 6.6
Max AS path length visible: 18
Max AS path prepend of ASN ( 47805) 11
Prefixes from unregistered ASNs in the Routing Table: 22
Number of instances of unregistered ASNs: 22
Number of 32-bit ASNs allocated by the RIRs: 43226
Number of 32-bit ASNs visible in the Routing Table: 790
Prefixes from 32-bit ASNs in the Routing Table: 3425
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: 1
Number of addresses announced to Internet: 191852608
Equivalent to 11 /8s, 111 /16s and 112 /24s
Percentage of available address space announced: 5.2
Percentage of allocated address space announced: 5.2
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: 2472
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 8431
Total APNIC prefixes after maximum aggregation: 2917
APNIC Deaggregation factor: 2.89
Prefixes being announced from the APNIC address blocks: 8268
Unique aggregates announced from the APNIC address blocks: 3463
APNIC Region origin ASes present in the Internet Routing Table: 721
APNIC Prefixes per ASN: 11.47
APNIC Region origin ASes announcing only one prefix: 297
APNIC Region transit ASes present in the Internet Routing Table: 88
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 15
Number of APNIC region 32-bit ASNs visible in the Routing Table: 344
Number of APNIC addresses announced to Internet: 36041024
Equivalent to 2 /8s, 37 /16s and 241 /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: 8158
Total ARIN prefixes after maximum aggregation: 4620
ARIN Deaggregation factor: 1.77
Prefixes being announced from the ARIN address blocks: 8286
Unique aggregates announced from the ARIN address blocks: 5194
ARIN Region origin ASes present in the Internet Routing Table: 1248
ARIN Prefixes per ASN: 6.64
ARIN Region origin ASes announcing only one prefix: 454
ARIN Region transit ASes present in the Internet Routing Table: 166
Average ARIN Region AS path length visible: 7.9
Max ARIN Region AS path length visible: 18
Number of ARIN region 32-bit ASNs visible in the Routing Table: 199
Number of ARIN addresses announced to Internet: 91208960
Equivalent to 5 /8s, 111 /16s and 189 /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: 3646
Total RIPE prefixes after maximum aggregation: 2885
RIPE Deaggregation factor: 1.26
Prefixes being announced from the RIPE address blocks: 3695
Unique aggregates announced from the RIPE address blocks: 2947
RIPE Region origin ASes present in the Internet Routing Table: 699
RIPE Prefixes per ASN: 5.29
RIPE Region origin ASes announcing only one prefix: 312
RIPE Region transit ASes present in the Internet Routing Table: 104
Average RIPE Region AS path length visible: 7.0
Max RIPE Region AS path length visible: 18
Number of RIPE region 32-bit ASNs visible in the Routing Table: 151
Number of RIPE addresses announced to Internet: 57972736
Equivalent to 3 /8s, 116 /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,
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: 1388
Total LACNIC prefixes after maximum aggregation: 544
LACNIC Deaggregation factor: 2.55
Prefixes being announced from the LACNIC address blocks: 1386
Unique aggregates announced from the LACNIC address blocks: 723
LACNIC Region origin ASes present in the Internet Routing Table: 164
LACNIC Prefixes per ASN: 8.45
LACNIC Region origin ASes announcing only one prefix: 63
LACNIC Region transit ASes present in the Internet Routing Table: 24
Average LACNIC Region AS path length visible: 9.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 66
Number of LACNIC addresses announced to Internet: 3916288
Equivalent to 0 /8s, 59 /16s and 194 /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: 1341
Total AfriNIC prefixes after maximum aggregation: 176
AfriNIC Deaggregation factor: 7.62
Prefixes being announced from the AfriNIC address blocks: 1350
Unique aggregates announced from the AfriNIC address blocks: 235
AfriNIC Region origin ASes present in the Internet Routing Table: 53
AfriNIC Prefixes per ASN: 25.47
AfriNIC Region origin ASes announcing only one prefix: 28
AfriNIC Region transit ASes present in the Internet Routing Table: 10
Average AfriNIC Region AS path length visible: 7.2
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 30
Number of AfriNIC addresses announced to Internet: 2713344
Equivalent to 0 /8s, 41 /16s and 103 /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
7470 684 363 73 TRUEINTERNET-AS-AP TRUE INTERNET Co.,Lt
131090 579 55 9 CAT-IDC-4BYTENET-AS-AP CAT TELECOM Publ
45458 500 39 45 SBN-AWN-AS-02-AP SBN-ISPAWN-ISP and SBN
9931 494 71 36 CAT-AP The Communication Authoity of Th
7497 437 180 23 CSTNET-AS-AP Computer Network Informati
131293 276 23 65 TOT-LLI-AS-AP TOT Public Company Limite
1659 235 1466 35 ERX-TANET-ASN1 Taiwan Academic Network
4765 208 13 95 PACIFICINTERNET-AS-AP Pacific Internet
1237 193 74 142 KREONET-AS-KR KISTI, KR
7575 176 329 119 AARNET-AS-AP Australian Academic and Re
Complete listing at https://bgp.nsrc.org/REN/AIT/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2152 382 507 96 CSUNET-NW, US
668 204 652 173 DNIC-AS-00668, US
376 201 162 151 RISQ-AS, CA
5786 197 16 1 UPRENET, PR
18558 141 18 4 NETBLK-RCOEK, US
81 127 521 30 NCREN, US
23024 109 7 22 OCDE, US
2920 104 34 9 LACOE, US
21976 80 51 18 NJEDGE-NET, US
1736 79 16 1 MU-AS, US
Complete listing at https://bgp.nsrc.org/REN/AIT/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 285 1899 249 DFN Verein zur Foerderung eines Deutsch
786 189 1767 182 JANET Jisc Services Limited, GB
8895 130 24 5 ISU Internet Services Unit ISU, SA
559 114 533 104 SWITCH Peering requests: peering at switch
1103 96 1503 83 SURFNET-NL SURFnet, The Netherlands, NL
2614 95 27 74 ROEDUNET, RO
137 90 676 75 ASGARR Consortium GARR, IT
1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnol
553 76 462 76 BELWUE BelWue-Koordination, DE
2200 63 598 58 FR-RENATER Reseau National de telecommu
Complete listing at https://bgp.nsrc.org/REN/AIT/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 210 176 42 Rede Nacional de Ensino e Pesquisa, BR
28391 154 10 67 Universidad Juarez Autonoma de Tabasco,
11340 98 24 48 Red Universitaria Nacional, CL
271640 68 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
61468 43 3 14 CEDIA, EC
2715 42 67 32 Fundacao Carlos Chagas Filho de Amparo
28614 38 2 2 Fundacao Universidade Regional de Blume
1251 35 32 25 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
Complete listing at https://bgp.nsrc.org/REN/AIT/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
36914 529 82 3 KENET-AS, KE
2018 377 319 71 TENET-1, ZA
327687 160 28 3 RENU, UG
8094 47 48 18 PUKNET, ZA
327700 43 16 1 MoRENet, MZ
3208 32 2 1 ARN, DZ
6879 24 2 9 ENSTINET-, EG
37074 14 8 2 UG-AS, GH
37215 12 8 1 MAREN, MW
37501 11 49 6 UOFS, ZA
Complete listing at https://bgp.nsrc.org/REN/AIT/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
7470 684 363 73 TRUEINTERNET-AS-AP TRUE INTERNET Co.,Lt
131090 579 55 9 CAT-IDC-4BYTENET-AS-AP CAT TELECOM Publ
36914 529 82 3 KENET-AS, KE
45458 500 39 45 SBN-AWN-AS-02-AP SBN-ISPAWN-ISP and SBN
9931 494 71 36 CAT-AP The Communication Authoity of Th
7497 437 180 23 CSTNET-AS-AP Computer Network Informati
2152 382 507 96 CSUNET-NW, US
2018 377 319 71 TENET-1, ZA
680 285 1899 249 DFN Verein zur Foerderung eines Deutsch
131293 276 23 65 TOT-LLI-AS-AP TOT Public Company Limite
Complete listing at https://bgp.nsrc.org/REN/AIT/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
131090 579 570 CAT-IDC-4BYTENET-AS-AP CAT TELECOM Public Compa
36914 529 526 KENET-AS, KE
9931 494 458 CAT-AP The Communication Authoity of Thailand,
45458 500 455 SBN-AWN-AS-02-AP SBN-ISPAWN-ISP and SBN-NIXAWN-
7497 437 414 CSTNET-AS-AP Computer Network Information Cente
2018 377 306 TENET-1, ZA
2152 382 286 CSUNET-NW, US
131293 276 211 TOT-LLI-AS-AP TOT Public Company Limited, TH
1659 235 200 ERX-TANET-ASN1 Taiwan Academic Network TANet In
5786 197 196 UPRENET, PR
Complete listing at https://bgp.nsrc.org/REN/AIT/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 RESERVED, ZZ
65101 PRIVATE 64.54.9.0/24 5653 UCSF, US
65101 PRIVATE 64.54.18.0/24 5653 UCSF, US
65101 PRIVATE 64.54.128.0/24 5653 UCSF, US
65101 PRIVATE 64.54.149.0/24 5653 UCSF, US
65101 PRIVATE 64.54.162.0/24 5653 UCSF, US
65101 PRIVATE 64.54.196.0/24 5653 UCSF, US
65101 PRIVATE 64.54.197.0/24 5653 UCSF, US
394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US
65007 PRIVATE 134.204.208.0/24 18723 SEAGATE-USA-CA-1, US
Complete listing at https://bgp.nsrc.org/REN/AIT/data-badAS
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
192.31.196.0/24 Origin: 112 RESERVED, ZZ
192.31.196.0/24 Transit: 7500 M-ROOT-DNS WIDE Project, JP
Complete listing at https://bgp.nsrc.org/REN/AIT/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 /11:1 /12:9
/13:18 /14:31 /15:120 /16:1804 /17:434 /18:553
/19:630 /20:988 /21:931 /22:1818 /23:1797 /24:13844
/25:1 /26:2 /27:2 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 514 529 KENET-AS, KE
8895 125 130 ISU Internet Services Unit ISU, SA
23024 52 109 OCDE, US
134729 48 64 JPTL-AS-AP JOINT POWER TECHNOLOGY LIMITED, HK
2152 39 382 CSUNET-NW, US
32440 38 62 LONI, US
327700 37 43 MoRENet, MZ
18632 33 65 VOLCANO-VISION, US
200521 33 56 SEAP-AGE, ES
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
Complete listing at https://bgp.nsrc.org/REN/AIT/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:134 2:1 5:15 6:4 8:4 12:1
14:92 23:23 24:1 27:49 31:7 35:6
38:8 40:1 41:227 42:9 43:21 44:7
45:75 46:5 47:4 49:338 50:4 52:1
58:94 59:10 60:5 61:289 62:12 63:37
64:55 65:37 66:54 67:43 68:10 69:17
70:2 71:2 72:7 74:48 76:42 77:9
78:3 79:10 80:12 81:26 82:7 83:9
84:11 85:28 86:4 87:1 89:11 90:1
91:48 92:2 93:4 94:4 95:18 96:5
97:2 98:3 101:9 102:35 103:430 104:76
106:3 107:20 108:13 109:6 110:372 111:41
112:26 113:42 114:27 115:14 116:23 117:62
118:96 119:194 121:14 122:240 123:1 124:46
125:7 128:90 129:45 130:85 131:69 132:60
133:12 134:315 136:197 137:128 138:10 139:11
140:91 141:8 142:39 143:25 144:35 145:3
146:127 147:85 148:200 149:11 150:49 151:12
152:133 153:14 154:63 155:63 156:67 157:26
158:34 159:239 160:4 161:19 162:26 163:86
164:70 165:48 166:1 167:24 168:118 169:8
170:98 171:140 172:5 173:7 174:1 175:18
176:8 177:6 179:12 180:66 181:1 182:12
183:9 184:11 185:64 186:3 187:17 188:14
189:3 190:18 191:12 192:1280 193:307 194:132
195:97 196:200 197:329 198:537 199:267 200:324
201:37 202:597 203:789 204:369 205:152 206:197
207:221 208:75 209:168 210:258 211:16 212:159
213:5 214:8 216:85 217:9 218:23 220:16
221:36 222:2 223:58
End of report
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