IPv4 R&E Routing Table Report 18:50 GMT Fri 21 Jul, 2023 IPv4 BGP Table (R&E) as seen at KENET. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/KENET/ Analysis Summary ---------------- BGP routing table entries examined: 14944 Prefixes after maximum aggregation (per Origin AS): 8429 Deaggregation factor: 1.77 Unique aggregates announced (without unneeded subnets): 9260 Number of IPv4 prefixes with a valid ROA: 4559 Number of IPv4 prefixes with an invalid ROA: 7 Number of IPv4 prefixes with no ROA: 10378 Total ASes present in the Internet Routing Table: 2180 Prefixes per ASN: 6.86 Origin-only ASes present in the Internet Routing Table: 1855 Origin ASes announcing only one prefix: 822 Transit ASes present in the Internet Routing Table: 325 Transit-only ASes present in the Internet Routing Table: 68 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 5.0 Max AS path length visible: 20 Max AS path prepend of ASN ( 10497) 11 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: 42274 Number of 32-bit ASNs visible in the Routing Table: 490 Prefixes from 32-bit ASNs in the Routing Table: 1311 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: 2 Number of addresses announced to Internet: 183084032 Equivalent to 10 /8s, 233 /16s and 164 /24s Percentage of available address space announced: 4.9 Percentage of allocated address space announced: 4.9 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: 1862 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 3730 Total APNIC prefixes after maximum aggregation: 1962 APNIC Deaggregation factor: 1.90 Prefixes being announced from the APNIC address blocks: 3730 Unique aggregates announced from the APNIC address blocks: 2153 APNIC Region origin ASes present in the Internet Routing Table: 437 APNIC Prefixes per ASN: 8.54 APNIC Region origin ASes announcing only one prefix: 195 APNIC Region transit ASes present in the Internet Routing Table: 52 Average APNIC Region AS path length visible: 5.2 Max APNIC Region AS path length visible: 14 Number of APNIC region 32-bit ASNs visible in the Routing Table: 164 Number of APNIC addresses announced to Internet: 44311040 Equivalent to 2 /8s, 164 /16s and 34 /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: 5501 Total ARIN prefixes after maximum aggregation: 3076 ARIN Deaggregation factor: 1.79 Prefixes being announced from the ARIN address blocks: 5514 Unique aggregates announced from the ARIN address blocks: 3373 ARIN Region origin ASes present in the Internet Routing Table: 894 ARIN Prefixes per ASN: 6.17 ARIN Region origin ASes announcing only one prefix: 304 ARIN Region transit ASes present in the Internet Routing Table: 130 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 20 Number of ARIN region 32-bit ASNs visible in the Routing Table: 134 Number of ARIN addresses announced to Internet: 76784384 Equivalent to 4 /8s, 147 /16s and 163 /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: 3363 Total RIPE prefixes after maximum aggregation: 2681 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3352 Unique aggregates announced from the RIPE address blocks: 2698 RIPE Region origin ASes present in the Internet Routing Table: 609 RIPE Prefixes per ASN: 5.50 RIPE Region origin ASes announcing only one prefix: 262 RIPE Region transit ASes present in the Internet Routing Table: 98 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 12 Number of RIPE region 32-bit ASNs visible in the Routing Table: 123 Number of RIPE addresses announced to Internet: 56056064 Equivalent to 3 /8s, 87 /16s and 89 /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: 1383 Total LACNIC prefixes after maximum aggregation: 571 LACNIC Deaggregation factor: 2.42 Prefixes being announced from the LACNIC address blocks: 1382 Unique aggregates announced from the LACNIC address blocks: 810 LACNIC Region origin ASes present in the Internet Routing Table: 162 LACNIC Prefixes per ASN: 8.53 LACNIC Region origin ASes announcing only one prefix: 59 LACNIC Region transit ASes present in the Internet Routing Table: 25 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 14 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 67 Number of LACNIC addresses announced to Internet: 4200192 Equivalent to 0 /8s, 64 /16s and 23 /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: 965 Total AfriNIC prefixes after maximum aggregation: 137 AfriNIC Deaggregation factor: 7.04 Prefixes being announced from the AfriNIC address blocks: 964 Unique aggregates announced from the AfriNIC address blocks: 224 AfriNIC Region origin ASes present in the Internet Routing Table: 9 AfriNIC Prefixes per ASN: 107.11 AfriNIC Region origin ASes announcing only one prefix: 2 AfriNIC Region transit ASes present in the Internet Routing Table: 4 Average AfriNIC Region AS path length visible: 2.0 Max AfriNIC Region AS path length visible: 6 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 2 Number of AfriNIC addresses announced to Internet: 1731584 Equivalent to 0 /8s, 26 /16s and 108 /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 596 2147 465 SINET-AS Research Organization of Infor 7497 434 180 23 CSTNET-AS-AP Computer Network Informati 4538 196 4192 73 ERX-CERNET-BKB China Education and Rese 1237 191 74 139 KREONET-AS-KR KISTI, KR 58647 178 18 2 KAGAWAU-AS Kagawa University, JP 7575 175 329 119 AARNET-AS-AP Australian Academic and Re 55824 122 18 14 NKN-CORE-NW NKN Core Network, IN 4762 65 4 1 MAHIDOL-BORDER-AS Mahidol University, T 2697 57 4 33 ERX-ERNET-AS Education and Research Net 1659 51 1450 34 ERX-TANET-ASN1 Taiwan Academic Network Complete listing at https://bgp.nsrc.org/REN/KENET/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 5786 197 16 1 UPRENET, PR 2152 136 507 92 CSUNET-NW, US 18558 136 18 4 NETBLK-RCOEK, US 81 128 521 31 NCREN, US 270 117 329 82 AS270, US 23024 113 7 17 OCDE, US 2920 107 34 7 LACOE, US 21976 84 51 18 NJEDGE-NET, US 3477 71 62 41 NOAA-NWAVE, US 6325 67 169 13 ILLINOIS-CENTURY, US Complete listing at https://bgp.nsrc.org/REN/KENET/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 283 1903 249 DFN Verein zur Foerderung eines Deutsch 786 186 1767 183 JANET Jisc Services Limited, GB 8895 136 24 5 ISU Internet Services Unit ISU, SA 559 111 533 103 SWITCH Peering requests: peering@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/KENET/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 220 176 41 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 4270 48 16 1 Red de Interconexion Universitaria, AR 61468 42 3 14 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 3596 34 4 3 Universidad Autonoma Metropolitana, MX 263683 33 10 21 Universidad de Costa Rica, CR Complete listing at https://bgp.nsrc.org/REN/KENET/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 524 80 49 KENET-AS, KE 2018 372 319 72 TENET-1, ZA 3208 32 2 1 ARN, DZ 6879 24 2 9 ENSTINET-, EG 30983 4 4 1 MARWAN-AS, MA 327945 4 0 2 ILRI, KE 328225 3 0 1 Strathmore-University, KE 6149 1 0 1 TENET-2, ZA 37717 1 16 1 EL-Khawarizmi, TN Complete listing at https://bgp.nsrc.org/REN/KENET/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 596 2147 465 SINET-AS Research Organization of Infor 36914 524 80 49 KENET-AS, KE 7497 434 180 23 CSTNET-AS-AP Computer Network Informati 2018 372 319 72 TENET-1, ZA 680 283 1903 249 DFN Verein zur Foerderung eines Deutsch 1916 220 176 41 Rede Nacional de Ensino e Pesquisa, BR 5786 197 16 1 UPRENET, PR 4538 196 4192 73 ERX-CERNET-BKB China Education and Rese 1237 191 74 139 KREONET-AS-KR KISTI, KR 786 186 1767 183 JANET Jisc Services Limited, GB Complete listing at https://bgp.nsrc.org/REN/KENET/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 36914 524 475 KENET-AS, KE 7497 434 411 CSTNET-AS-AP Computer Network Information Cente 2018 372 300 TENET-1, ZA 5786 197 196 UPRENET, PR 1916 220 179 Rede Nacional de Ensino e Pesquisa, BR 58647 178 176 KAGAWAU-AS Kagawa University, JP 18558 136 132 NETBLK-RCOEK, US 8895 136 131 ISU Internet Services Unit ISU, SA 4538 196 123 ERX-CERNET-BKB China Education and Research Net 55824 122 108 NKN-CORE-NW NKN Core Network, IN Complete listing at https://bgp.nsrc.org/REN/KENET/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 394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US Complete listing at https://bgp.nsrc.org/REN/KENET/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 102.36.194.0/23 Origin: 2018 TENET-1, ZA 102.36.194.0/23 Transit: 11537 INTERNET2-RESEARCH-EDU, US 202.58.231.0/24 Origin: 134096 EHEALTHNSW-AS-AP eHealth NSW, AU 202.58.231.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res Complete listing at https://bgp.nsrc.org/REN/KENET/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 /12:10 /13:19 /14:34 /15:118 /16:1733 /17:370 /18:363 /19:454 /20:692 /21:724 /22:1128 /23:1287 /24:8008 /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 505 524 KENET-AS, KE 8895 131 136 ISU Internet Services Unit ISU, SA 23024 52 113 OCDE, US 32440 37 59 LONI, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 25977 30 44 HCCS, US 200521 27 48 SEAP-AGE, ES 26898 24 32 LNOCA-ORG, US 36794 24 26 SCOCA, US 1968 21 34 UMASSNET-AS1968, US Complete listing at https://bgp.nsrc.org/REN/KENET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1 5:15 8:2 14:89 23:5 24:3 31:7 35:2 38:6 41:187 42:16 44:5 45:33 46:5 49:9 50:1 52:1 58:12 59:9 60:4 61:3 62:10 63:4 64:30 65:1 66:11 67:39 68:1 69:19 70:2 72:7 74:13 76:40 77:9 78:2 79:10 80:13 81:23 82:7 83:6 84:3 85:29 86:10 87:1 89:9 91:44 92:2 93:3 94:4 95:1 97:1 98:2 101:4 103:214 104:79 108:2 109:9 110:1 111:10 116:6 118:18 119:18 121:15 122:8 123:8 124:38 125:4 128:65 129:37 130:86 131:35 132:51 133:155 134:38 136:197 137:42 138:10 139:4 140:35 141:1 143:14 144:23 145:1 146:130 147:25 148:191 149:12 150:35 151:11 152:136 153:14 154:24 155:59 156:68 157:17 158:37 159:114 160:27 161:20 162:12 163:73 164:10 165:8 166:1 167:9 168:115 169:7 170:62 171:1 172:3 173:6 175:27 176:8 177:5 179:12 180:15 181:1 182:1 184:1 185:42 186:3 187:17 188:13 189:3 190:18 191:12 192:1210 193:285 194:127 195:68 196:141 197:309 198:275 199:126 200:283 201:38 202:468 203:235 204:281 205:34 206:70 207:82 208:64 209:94 210:141 211:2 212:163 213:5 216:35 217:11 218:21 219:12 220:7 222:3 223:14 End of report