IPv4 R&E Routing Table Report 18:50 GMT Thu 20 Oct, 2022 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: 15025 Prefixes after maximum aggregation (per Origin AS): 8468 Deaggregation factor: 1.77 Unique aggregates announced (without unneeded subnets): 9422 Number of IPv4 prefixes with a valid ROA: 4032 Number of IPv4 prefixes with an invalid ROA: 7 Number of IPv4 prefixes with no ROA: 10986 Total ASes present in the Internet Routing Table: 2224 Prefixes per ASN: 6.76 Origin-only ASes present in the Internet Routing Table: 1902 Origin ASes announcing only one prefix: 868 Transit ASes present in the Internet Routing Table: 322 Transit-only ASes present in the Internet Routing Table: 63 Paths with bogon ASNs present in the IPv4 Routing Table: 1 Average AS path length visible in the Internet Routing Table: 5.1 Max AS path length visible: 18 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 3 Number of instances of unregistered ASNs: 3 Number of 32-bit ASNs allocated by the RIRs: 40435 Number of 32-bit ASNs visible in the Routing Table: 514 Prefixes from 32-bit ASNs in the Routing Table: 1381 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: 0 Number of addresses announced to Internet: 183617536 Equivalent to 10 /8s, 241 /16s and 200 /24s Percentage of available address space announced: 5.0 Percentage of allocated address space announced: 5.0 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: 1796 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 3826 Total APNIC prefixes after maximum aggregation: 2024 APNIC Deaggregation factor: 1.89 Prefixes being announced from the APNIC address blocks: 3827 Unique aggregates announced from the APNIC address blocks: 2228 APNIC Region origin ASes present in the Internet Routing Table: 486 APNIC Prefixes per ASN: 7.87 APNIC Region origin ASes announcing only one prefix: 217 APNIC Region transit ASes present in the Internet Routing Table: 59 Average APNIC Region AS path length visible: 5.2 Max APNIC Region AS path length visible: 18 Number of APNIC region 32-bit ASNs visible in the Routing Table: 192 Number of APNIC addresses announced to Internet: 44638208 Equivalent to 2 /8s, 169 /16s and 32 /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: 5503 Total ARIN prefixes after maximum aggregation: 3071 ARIN Deaggregation factor: 1.79 Prefixes being announced from the ARIN address blocks: 5514 Unique aggregates announced from the ARIN address blocks: 3465 ARIN Region origin ASes present in the Internet Routing Table: 898 ARIN Prefixes per ASN: 6.14 ARIN Region origin ASes announcing only one prefix: 319 ARIN Region transit ASes present in the Internet Routing Table: 128 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 15 Number of ARIN region 32-bit ASNs visible in the Routing Table: 129 Number of ARIN addresses announced to Internet: 77107200 Equivalent to 4 /8s, 152 /16s and 144 /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: 3313 Total RIPE prefixes after maximum aggregation: 2640 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3307 Unique aggregates announced from the RIPE address blocks: 2674 RIPE Region origin ASes present in the Internet Routing Table: 604 RIPE Prefixes per ASN: 5.48 RIPE Region origin ASes announcing only one prefix: 268 RIPE Region transit ASes present in the Internet Routing Table: 91 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 14 Number of RIPE region 32-bit ASNs visible in the Routing Table: 123 Number of RIPE addresses announced to Internet: 55905536 Equivalent to 3 /8s, 85 /16s and 13 /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: 1428 Total LACNIC prefixes after maximum aggregation: 573 LACNIC Deaggregation factor: 2.49 Prefixes being announced from the LACNIC address blocks: 1425 Unique aggregates announced from the LACNIC address blocks: 784 LACNIC Region origin ASes present in the Internet Routing Table: 160 LACNIC Prefixes per ASN: 8.91 LACNIC Region origin ASes announcing only one prefix: 62 LACNIC Region transit ASes present in the Internet Routing Table: 24 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 67 Number of LACNIC addresses announced to Internet: 4214528 Equivalent to 0 /8s, 64 /16s and 79 /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: 952 Total AfriNIC prefixes after maximum aggregation: 157 AfriNIC Deaggregation factor: 6.06 Prefixes being announced from the AfriNIC address blocks: 952 Unique aggregates announced from the AfriNIC address blocks: 271 AfriNIC Region origin ASes present in the Internet Routing Table: 10 AfriNIC Prefixes per ASN: 95.20 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: 2.2 Max AfriNIC Region AS path length visible: 6 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 3 Number of AfriNIC addresses announced to Internet: 1752064 Equivalent to 0 /8s, 26 /16s and 188 /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 570 2156 457 SINET-AS Research Organization of Infor 7497 431 182 24 CSTNET-AS-AP Computer Network Informati 4538 190 4192 73 ERX-CERNET-BKB China Education and Rese 1237 186 74 134 KREONET-AS-KR KISTI, KR 7575 176 329 121 AARNET-AS-AP Australian Academic and Re 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 55824 113 18 10 NKN-CORE-NW NKN Core Network, IN 4762 65 4 1 MAHIDOL-BORDER-AS Mahidol University, T 2697 54 3 32 ERX-ERNET-AS Education and Research Net 1659 52 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 200 16 1 UPRENET, PR 2152 148 507 90 CSUNET-NW, US 18558 134 18 4 NETBLK-RCOEK, US 270 120 329 85 AS270, US 23024 115 7 13 OCDE, US 2920 108 34 7 LACOE, US 32531 90 6 60 FORDHAM-UNIVERSITY, US 21976 85 51 18 NJEDGE-NET, US 3 78 496 15 MIT-GATEWAYS, US 3477 70 74 38 NOAA-NWAVE, 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 680 276 1934 245 DFN Verein zur Foerderung eines Deutsch 786 186 1775 183 JANET Jisc Services Limited, GB 8895 134 24 4 ISU Internet Services Unit ISU, SA 559 115 550 106 SWITCH Peering requests: peering@switch 1103 98 1520 86 SURFNET-NL SURFnet, The Netherlands, NL 2614 95 27 75 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 553 73 449 73 BELWUE BelWue-Koordination, DE 2200 62 583 57 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/KENET/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 157 208 43 Rede Nacional de Ensino e Pesquisa, BR 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 11340 96 24 54 Red Universitaria Nacional, CL 1251 58 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 4270 44 16 1 Red de Interconexion Universitaria, AR 61468 42 3 15 CEDIA, EC 28571 40 40 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/KENET/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 471 81 36 KENET-AS, KE 2018 376 319 72 TENET-1, ZA 2561 67 4 32 EUN, EG 6879 24 2 9 ENSTINET-, EG 30983 4 4 1 MARWAN-AS, MA 327945 4 0 2 ILRI, KE 328225 2 0 1 Strathmore-University, KE 328762 2 0 2 Mansoora-University, EG 3208 1 2 1 ARN, DZ 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 570 2156 457 SINET-AS Research Organization of Infor 36914 471 81 36 KENET-AS, KE 7497 431 182 24 CSTNET-AS-AP Computer Network Informati 2018 376 319 72 TENET-1, ZA 680 276 1934 245 DFN Verein zur Foerderung eines Deutsch 5786 200 16 1 UPRENET, PR 4538 190 4192 73 ERX-CERNET-BKB China Education and Rese 786 186 1775 183 JANET Jisc Services Limited, GB 1237 186 74 134 KREONET-AS-KR KISTI, KR 7575 176 329 121 AARNET-AS-AP Australian Academic and Re 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 471 435 KENET-AS, KE 7497 431 407 CSTNET-AS-AP Computer Network Information Cente 2018 376 304 TENET-1, ZA 5786 200 199 UPRENET, PR 58647 175 173 KAGAWAU-AS Kagawa University, JP 8895 134 130 ISU Internet Services Unit ISU, SA 18558 134 130 NETBLK-RCOEK, US 4538 190 117 ERX-CERNET-BKB China Education and Research Net 1916 157 114 Rede Nacional de Ensino e Pesquisa, BR 55824 113 103 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 65216 PRIVATE 91.196.28.0/22 199713 MLL-AS, GB 22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US 394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US Complete listing at https://bgp.nsrc.org/REN/KENET/data-badAS 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 /16:1740 /17:376 /18:373 /19:448 /20:702 /21:754 /22:1131 /23:1283 /24:8033 /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 451 471 KENET-AS, KE 8895 129 134 ISU Internet Services Unit ISU, SA 23024 53 115 OCDE, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 32440 32 47 LONI, US 25977 30 44 HCCS, US 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 200521 28 49 SEAP-AGE, ES 1968 22 34 UMASSNET-AS1968, US 3267 22 56 RUNNET, RU Complete listing at https://bgp.nsrc.org/REN/KENET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:3 5:15 8:2 14:85 18:43 23:5 24:2 31:7 35:4 38:6 41:185 42:15 44:4 45:28 46:5 49:10 52:1 58:12 59:9 60:4 61:3 62:9 63:3 64:23 65:1 66:11 67:41 68:1 69:21 70:2 72:7 74:13 76:37 77:8 78:2 79:10 80:18 81:25 82:8 83:6 84:4 85:30 86:6 87:1 88:1 89:9 91:43 92:1 93:4 94:4 95:1 97:2 98:2 101:8 102:1 103:270 104:73 108:2 109:10 110:4 111:10 116:6 118:18 119:23 121:19 122:8 123:8 124:39 125:4 128:65 129:35 130:88 131:42 132:51 133:146 134:32 136:200 137:48 138:9 139:5 140:41 141:1 143:24 144:23 146:129 147:26 148:190 149:12 150:122 151:6 152:71 153:14 154:22 155:48 156:67 157:23 158:42 159:115 160:26 161:18 162:12 163:65 164:10 165:11 166:1 167:12 168:117 169:9 170:54 171:1 172:2 173:6 175:30 176:8 177:11 179:10 180:18 181:1 182:3 185:34 186:3 187:17 188:13 189:3 190:33 191:36 192:1183 193:298 194:129 195:87 196:138 197:256 198:277 199:121 200:227 201:38 202:468 203:236 204:269 205:34 206:68 207:84 208:60 209:82 210:137 211:12 212:165 213:5 216:33 217:11 218:21 219:12 220:6 222:6 223:4 End of report