IPv4 R&E Routing Table Report 20:15 GMT Tue 31 May, 2022 IPv4 BGP Table (R&E) as seen at KREONet2. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/ Analysis Summary ---------------- BGP routing table entries examined: 19389 Prefixes after maximum aggregation (per Origin AS): 10913 Deaggregation factor: 1.78 Unique aggregates announced (without unneeded subnets): 12126 Number of IPv4 prefixes with a valid ROA: 4628 Number of IPv4 prefixes with an invalid ROA: 48 Number of IPv4 prefixes with no ROA: 14713 Total ASes present in the Internet Routing Table: 2791 Prefixes per ASN: 6.95 Origin-only ASes present in the Internet Routing Table: 2391 Origin ASes announcing only one prefix: 1089 Transit ASes present in the Internet Routing Table: 400 Transit-only ASes present in the Internet Routing Table: 81 Average AS path length visible in the Internet Routing Table: 4.1 Max AS path length visible: 15 Max AS path prepend of ASN ( 1149) 11 Prefixes from unregistered ASNs in the Routing Table: 5 Number of instances of unregistered ASNs: 5 Number of 32-bit ASNs allocated by the RIRs: 39500 Number of 32-bit ASNs visible in the Routing Table: 626 Prefixes from 32-bit ASNs in the Routing Table: 1695 Number of bogon 32-bit ASNs visible in the Routing Table: 0 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 2 Number of addresses announced to Internet: 250227827 Equivalent to 14 /8s, 234 /16s and 44 /24s Percentage of available address space announced: 6.8 Percentage of allocated address space announced: 6.8 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: 2261 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 5094 Total APNIC prefixes after maximum aggregation: 2393 APNIC Deaggregation factor: 2.13 Prefixes being announced from the APNIC address blocks: 4956 Unique aggregates announced from the APNIC address blocks: 2686 APNIC Region origin ASes present in the Internet Routing Table: 580 APNIC Prefixes per ASN: 8.54 APNIC Region origin ASes announcing only one prefix: 252 APNIC Region transit ASes present in the Internet Routing Table: 77 Average APNIC Region AS path length visible: 4.0 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 225 Number of APNIC addresses announced to Internet: 47557228 Equivalent to 2 /8s, 213 /16s and 170 /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: 8311 Total ARIN prefixes after maximum aggregation: 4871 ARIN Deaggregation factor: 1.71 Prefixes being announced from the ARIN address blocks: 8421 Unique aggregates announced from the ARIN address blocks: 5481 ARIN Region origin ASes present in the Internet Routing Table: 1220 ARIN Prefixes per ASN: 6.90 ARIN Region origin ASes announcing only one prefix: 434 ARIN Region transit ASes present in the Internet Routing Table: 158 Average ARIN Region AS path length visible: 4.1 Max ARIN Region AS path length visible: 14 Number of ARIN region 32-bit ASNs visible in the Routing Table: 175 Number of ARIN addresses announced to Internet: 135425441 Equivalent to 8 /8s, 18 /16s and 109 /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: 3619 Total RIPE prefixes after maximum aggregation: 2872 RIPE Deaggregation factor: 1.26 Prefixes being announced from the RIPE address blocks: 3649 Unique aggregates announced from the RIPE address blocks: 2900 RIPE Region origin ASes present in the Internet Routing Table: 692 RIPE Prefixes per ASN: 5.27 RIPE Region origin ASes announcing only one prefix: 313 RIPE Region transit ASes present in the Internet Routing Table: 107 Average RIPE Region AS path length visible: 3.9 Max RIPE Region AS path length visible: 15 Number of RIPE region 32-bit ASNs visible in the Routing Table: 137 Number of RIPE addresses announced to Internet: 59712838 Equivalent to 3 /8s, 143 /16s and 37 /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: 1430 Total LACNIC prefixes after maximum aggregation: 570 LACNIC Deaggregation factor: 2.51 Prefixes being announced from the LACNIC address blocks: 1428 Unique aggregates announced from the LACNIC address blocks: 764 LACNIC Region origin ASes present in the Internet Routing Table: 164 LACNIC Prefixes per ASN: 8.71 LACNIC Region origin ASes announcing only one prefix: 66 LACNIC Region transit ASes present in the Internet Routing Table: 24 Average LACNIC Region AS path length visible: 5.0 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 64 Number of LACNIC addresses announced to Internet: 4741920 Equivalent to 0 /8s, 72 /16s and 91 /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: 930 Total AfriNIC prefixes after maximum aggregation: 202 AfriNIC Deaggregation factor: 4.60 Prefixes being announced from the AfriNIC address blocks: 933 Unique aggregates announced from the AfriNIC address blocks: 293 AfriNIC Region origin ASes present in the Internet Routing Table: 49 AfriNIC Prefixes per ASN: 19.04 AfriNIC Region origin ASes announcing only one prefix: 24 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 3.7 Max AfriNIC Region AS path length visible: 10 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 25 Number of AfriNIC addresses announced to Internet: 2789888 Equivalent to 0 /8s, 42 /16s and 146 /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 619 2140 456 SINET-AS Research Organization of Infor 7497 432 182 24 CSTNET-AS-AP Computer Network Informati 45102 277 467 87 ALIBABA-CN-NET Alibaba US Technology Co 1237 193 74 135 KREONET-AS-KR KISTI, KR 4538 189 4192 73 ERX-CERNET-BKB China Education and Rese 7575 176 330 122 AARNET-AS-AP Australian Academic and Re 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 55824 116 18 11 NKN-CORE-NW NKN Core Network, IN 4621 78 37 10 UNINET-AS-AP UNINET-, TH 4762 65 4 1 MAHIDOL-BORDER-AS Mahidol University, T Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8075 215 10878 193 MICROSOFT-CORP-MSN-AS-BLOCK, US 376 202 178 151 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 6939 171 121 121 HURRICANE, US 2152 156 507 90 CSUNET-NW, US 18558 131 18 4 NETBLK-RCOEK, US 270 120 329 88 AS270, US 23024 114 7 17 OCDE, US 2920 110 34 6 LACOE, US 32531 91 16 1 FORDHAM-UNIVERSITY, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 284 1967 251 DFN Verein zur Foerderung eines Deutsch 786 186 1774 183 JANET Jisc Services Limited, GB 8895 180 24 4 ISU Internet Services Unit ISU, SA 559 115 550 106 SWITCH Peering requests: peering@switch 1103 100 1520 86 SURFNET-NL SURFnet, The Netherlands, NL 2614 96 27 76 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 553 73 449 73 BELWUE BelWue-Koordination, DE 2200 63 583 58 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/KREONet2/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 180 213 52 Rede Nacional de Ensino e Pesquisa, BR 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 11340 94 24 54 Red Universitaria Nacional, CL 1251 60 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 19611 46 17 2 Associacao Antonio Vieira - Unisinos, B 61468 45 3 15 CEDIA, EC 4270 43 16 1 Red de Interconexion Universitaria, AR 28614 37 2 2 Fundacao Universidade Regional de Blume 263282 37 5 12 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 375 319 74 TENET-1, ZA 36914 215 82 3 KENET-AS, KE 2561 67 4 32 EUN, EG 8094 48 48 15 PUKNET, ZA 327687 37 28 3 RENU, UG 327700 33 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37182 18 8 1 TERNET, TZ 37074 13 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 619 2140 456 SINET-AS Research Organization of Infor 7497 432 182 24 CSTNET-AS-AP Computer Network Informati 2018 375 319 74 TENET-1, ZA 680 284 1967 251 DFN Verein zur Foerderung eines Deutsch 45102 277 467 87 ALIBABA-CN-NET Alibaba US Technology Co 8075 215 10878 193 MICROSOFT-CORP-MSN-AS-BLOCK, US 36914 215 82 3 KENET-AS, KE 376 202 178 151 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 1237 193 74 135 KREONET-AS-KR KISTI, KR Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 432 408 CSTNET-AS-AP Computer Network Information Cente 2018 375 301 TENET-1, ZA 36914 215 212 KENET-AS, KE 5786 200 199 UPRENET, PR 45102 277 190 ALIBABA-CN-NET Alibaba US Technology Co., Ltd., 8895 180 176 ISU Internet Services Unit ISU, SA 58647 175 173 KAGAWAU-AS Kagawa University, JP 1916 180 128 Rede Nacional de Ensino e Pesquisa, BR 18558 131 127 NETBLK-RCOEK, US 4538 189 116 ERX-CERNET-BKB China Education and Research Net Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US 22226 UNALLOCATED 156.1.0.0/16 2152 CSUNET-NW, US 19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US 395514 UNALLOCATED 205.213.88.0/24 2381 WISCNET1-AS, US 394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 1103 SURFNET-NL SURFnet, The Netherlands, NL Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 192.31.196.0/24 Origin: 112 UNASSIGNED 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 192.88.99.0/24 Origin: 1103 SURFNET-NL SURFnet, The Netherlands, NL 192.88.99.0/24 Transit: 17579 KREONET2-AS-KR KISTI, KR Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /10:4 /11:5 /12:21 /13:28 /14:56 /15:147 /16:2044 /17:451 /18:490 /19:611 /20:889 /21:883 /22:1456 /23:1615 /24:10330 /25:88 /26:58 /27:88 /28:26 /29:19 /30:19 /31:0 /32:60 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 202 215 KENET-AS, KE 8895 175 180 ISU Internet Services Unit ISU, SA 32440 73 88 LONI, US 6939 67 171 HURRICANE, US 23024 53 114 OCDE, US 28614 31 37 Fundacao Universidade Regional de Blumenau, BR 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 18632 29 55 VOLCANO-VISION, US 27609 29 45 USC-UNIVERSITY-HOSPITAL, US 40326 29 33 ECKERD-COLLEGE, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:3 5:17 8:6 12:1 13:1 14:86 18:43 23:16 24:3 31:7 35:4 37:8 38:9 40:1 41:124 42:15 44:5 45:44 46:6 47:40 49:10 50:4 52:2 58:10 59:21 60:4 61:3 62:7 63:38 64:58 65:7 66:52 67:14 68:8 69:19 70:2 71:1 72:18 74:20 76:34 77:7 78:3 79:10 80:18 81:28 82:5 83:6 84:9 85:45 86:6 87:1 88:1 89:10 91:44 93:10 94:4 95:4 96:5 97:1 98:2 101:8 102:13 103:314 104:78 107:16 108:8 109:10 110:6 111:17 113:1 114:23 116:7 117:61 118:33 119:23 121:28 122:8 123:8 124:39 125:4 128:86 129:36 130:93 131:88 132:58 133:145 134:97 136:200 137:76 138:9 139:5 140:42 141:1 142:43 143:30 144:25 145:2 146:129 147:56 148:192 149:12 150:132 151:6 152:77 153:13 154:29 155:53 156:66 157:21 158:44 159:116 160:26 161:28 162:22 163:60 164:19 165:57 166:2 167:17 168:124 169:10 170:68 171:1 172:3 173:7 175:31 176:8 177:11 178:1 179:9 180:21 181:1 182:6 184:7 185:50 186:3 187:19 188:13 189:5 190:34 191:34 192:1419 193:316 194:148 195:86 196:161 197:122 198:511 199:266 200:237 201:38 202:634 203:430 204:334 205:169 206:181 207:172 208:85 209:119 210:184 211:15 212:149 213:5 216:100 217:12 218:22 219:12 220:17 222:6 223:6 End of report