IPv4 R&E Routing Table Report 20:15 GMT Fri 10 Feb, 2023 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: 20587 Prefixes after maximum aggregation (per Origin AS): 11176 Deaggregation factor: 1.84 Unique aggregates announced (without unneeded subnets): 12487 Number of IPv4 prefixes with a valid ROA: 6075 Number of IPv4 prefixes with an invalid ROA: 91 Number of IPv4 prefixes with no ROA: 14421 Total ASes present in the Internet Routing Table: 2821 Prefixes per ASN: 7.30 Origin-only ASes present in the Internet Routing Table: 2426 Origin ASes announcing only one prefix: 1070 Transit ASes present in the Internet Routing Table: 395 Transit-only ASes present in the Internet Routing Table: 84 Paths with bogon ASNs present in the IPv4 Routing Table: 3 Average AS path length visible in the Internet Routing Table: 4.0 Max AS path length visible: 19 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: 41188 Number of 32-bit ASNs visible in the Routing Table: 645 Prefixes from 32-bit ASNs in the Routing Table: 1804 Number of bogon 32-bit ASNs visible in the Routing Table: 1 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 3 Number of addresses announced to Internet: 267658067 Equivalent to 15 /8s, 244 /16s and 35 /24s Percentage of available address space announced: 7.2 Percentage of allocated address space announced: 7.2 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: 2725 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 5155 Total APNIC prefixes after maximum aggregation: 2419 APNIC Deaggregation factor: 2.13 Prefixes being announced from the APNIC address blocks: 5017 Unique aggregates announced from the APNIC address blocks: 2753 APNIC Region origin ASes present in the Internet Routing Table: 582 APNIC Prefixes per ASN: 8.62 APNIC Region origin ASes announcing only one prefix: 245 APNIC Region transit ASes present in the Internet Routing Table: 69 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: 224 Number of APNIC addresses announced to Internet: 47630444 Equivalent to 2 /8s, 214 /16s and 200 /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: 9327 Total ARIN prefixes after maximum aggregation: 5080 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 9367 Unique aggregates announced from the ARIN address blocks: 5613 ARIN Region origin ASes present in the Internet Routing Table: 1243 ARIN Prefixes per ASN: 7.54 ARIN Region origin ASes announcing only one prefix: 433 ARIN Region transit ASes present in the Internet Routing Table: 162 Average ARIN Region AS path length visible: 3.8 Max ARIN Region AS path length visible: 19 Number of ARIN region 32-bit ASNs visible in the Routing Table: 187 Number of ARIN addresses announced to Internet: 145181985 Equivalent to 8 /8s, 167 /16s and 77 /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: 3695 Total RIPE prefixes after maximum aggregation: 2901 RIPE Deaggregation factor: 1.27 Prefixes being announced from the RIPE address blocks: 3795 Unique aggregates announced from the RIPE address blocks: 3043 RIPE Region origin ASes present in the Internet Routing Table: 701 RIPE Prefixes per ASN: 5.41 RIPE Region origin ASes announcing only one prefix: 313 RIPE Region transit ASes present in the Internet Routing Table: 105 Average RIPE Region AS path length visible: 3.9 Max RIPE Region AS path length visible: 13 Number of RIPE region 32-bit ASNs visible in the Routing Table: 145 Number of RIPE addresses announced to Internet: 67488070 Equivalent to 4 /8s, 5 /16s and 201 /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: 1391 Total LACNIC prefixes after maximum aggregation: 561 LACNIC Deaggregation factor: 2.48 Prefixes being announced from the LACNIC address blocks: 1388 Unique aggregates announced from the LACNIC address blocks: 777 LACNIC Region origin ASes present in the Internet Routing Table: 151 LACNIC Prefixes per ASN: 9.19 LACNIC Region origin ASes announcing only one prefix: 54 LACNIC Region transit ASes present in the Internet Routing Table: 23 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 60 Number of LACNIC addresses announced to Internet: 4565888 Equivalent to 0 /8s, 69 /16s and 171 /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: 1012 Total AfriNIC prefixes after maximum aggregation: 208 AfriNIC Deaggregation factor: 4.87 Prefixes being announced from the AfriNIC address blocks: 1017 Unique aggregates announced from the AfriNIC address blocks: 298 AfriNIC Region origin ASes present in the Internet Routing Table: 54 AfriNIC Prefixes per ASN: 18.83 AfriNIC Region origin ASes announcing only one prefix: 25 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 3.9 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 29 Number of AfriNIC addresses announced to Internet: 2790656 Equivalent to 0 /8s, 42 /16s and 149 /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 595 2157 463 SINET-AS Research Organization of Infor 7497 434 182 24 CSTNET-AS-AP Computer Network Informati 45102 320 510 100 ALIBABA-CN-NET Alibaba US Technology Co 1237 192 74 134 KREONET-AS-KR KISTI, KR 4538 191 4192 73 ERX-CERNET-BKB China Education and Rese 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 7575 173 329 119 AARNET-AS-AP Australian Academic and Re 55824 119 18 12 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 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 15169 799 2258 65 GOOGLE, US 8075 316 12787 270 MICROSOFT-CORP-MSN-AS-BLOCK, US 2152 215 507 92 CSUNET-NW, US 376 200 178 149 RISQ-AS, CA 5786 199 16 1 UPRENET, PR 6939 170 118 121 HURRICANE, US 18558 132 18 4 NETBLK-RCOEK, US 270 120 329 85 AS270, US 23024 113 7 17 OCDE, US 2920 109 34 7 LACOE, 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 680 281 1919 249 DFN Verein zur Foerderung eines Deutsch 786 186 1775 183 JANET Jisc Services Limited, GB 8895 176 24 4 ISU Internet Services Unit ISU, SA 559 114 550 105 SWITCH Peering requests: peering@switch 1103 96 1518 85 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 3267 67 64 28 RUNNET, RU 1930 65 81 60 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 180 208 44 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 11340 104 24 47 Red Universitaria Nacional, CL 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 1251 57 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 61468 46 3 14 CEDIA, EC 4270 45 16 1 Red de Interconexion Universitaria, AR 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 28571 37 40 18 UNIVERSIDADE DE SAO PAULO, BR 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 366 319 72 TENET-1, ZA 36914 251 82 3 KENET-AS, KE 2561 67 4 34 EUN, EG 8094 48 48 15 PUKNET, ZA 327687 44 28 3 RENU, UG 3208 32 2 1 ARN, DZ 327700 32 16 1 MoRENet, MZ 37182 31 8 1 TERNET, TZ 6879 24 2 9 ENSTINET-, EG 37074 13 8 2 UG-AS, GH 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 15169 799 2258 65 GOOGLE, US 2907 595 2157 463 SINET-AS Research Organization of Infor 7497 434 182 24 CSTNET-AS-AP Computer Network Informati 2018 366 319 72 TENET-1, ZA 45102 320 510 100 ALIBABA-CN-NET Alibaba US Technology Co 8075 316 12787 270 MICROSOFT-CORP-MSN-AS-BLOCK, US 680 281 1919 249 DFN Verein zur Foerderung eines Deutsch 36914 251 82 3 KENET-AS, KE 2152 215 507 92 CSUNET-NW, US 376 200 178 149 RISQ-AS, CA 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 434 410 CSTNET-AS-AP Computer Network Information Cente 2018 366 294 TENET-1, ZA 36914 251 248 KENET-AS, KE 45102 320 220 ALIBABA-CN-NET Alibaba US Technology Co., Ltd., 5786 199 198 UPRENET, PR 58647 175 173 KAGAWAU-AS Kagawa University, JP 8895 176 172 ISU Internet Services Unit ISU, SA 1916 180 136 Rede Nacional de Ensino e Pesquisa, BR 2907 595 132 SINET-AS Research Organization of Information a 18558 132 128 NETBLK-RCOEK, US 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 394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US 18621 UNALLOCATED 142.156.0.0/16 26677 ORION-ASN, CA 33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US 65591 UNALLOCATED 196.21.92.0/22 2018 TENET-1, ZA 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 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-spar 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 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: 6939 HURRICANE, US 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 /11:7 /12:23 /13:38 /14:68 /15:152 /16:2123 /17:475 /18:506 /19:737 /20:913 /21:906 /22:1538 /23:1654 /24:11119 /25:86 /26:59 /27:94 /28:19 /29:18 /30:21 /31:1 /32:25 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 15169 271 799 GOOGLE, US 36914 238 251 KENET-AS, KE 8895 171 176 ISU Internet Services Unit ISU, SA 32440 79 94 LONI, US 6939 65 170 HURRICANE, US 23024 52 113 OCDE, US 8075 51 316 MICROSOFT-CORP-MSN-AS-BLOCK, US 18632 34 65 VOLCANO-VISION, US 46115 32 35 LUTHER, US 25977 30 44 HCCS, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 2:1 5:18 8:8 12:1 13:1 14:89 23:16 24:3 31:7 34:2 35:7 38:9 40:1 41:139 42:15 43:6 44:5 45:41 46:6 47:42 49:10 50:5 52:2 58:12 59:21 60:4 61:3 62:21 63:38 64:86 65:8 66:56 67:45 68:8 69:26 70:10 71:1 72:17 74:116 76:39 77:8 78:4 79:10 80:19 81:28 82:6 83:6 84:14 85:44 86:10 87:1 89:10 91:48 92:2 93:4 94:8 95:2 96:5 97:2 98:2 101:8 102:15 103:331 104:78 107:16 108:44 109:11 110:4 111:17 113:4 114:23 116:6 117:61 118:33 119:21 121:28 122:8 123:8 124:39 125:4 128:86 129:42 130:88 131:67 132:63 133:149 134:101 136:199 137:79 138:11 139:7 140:47 141:1 142:235 143:30 144:25 145:4 146:132 147:56 148:193 149:12 150:132 151:7 152:78 153:14 154:30 155:57 156:69 157:29 158:38 159:114 160:27 161:26 162:22 163:75 164:10 165:51 166:2 167:15 168:114 169:10 170:76 171:1 172:92 173:84 175:31 176:10 177:9 178:1 179:9 180:17 181:1 182:1 184:5 185:65 186:3 187:19 188:13 189:3 190:15 191:36 192:1439 193:349 194:156 195:93 196:162 197:154 198:542 199:264 200:221 201:35 202:630 203:428 204:354 205:136 206:194 207:180 208:81 209:140 210:186 211:18 212:173 213:5 216:121 217:13 218:22 219:12 220:17 222:6 223:11 End of report