IPv4 R&E Routing Table Report 20:15 GMT Fri 05 Aug, 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: 20335 Prefixes after maximum aggregation (per Origin AS): 11103 Deaggregation factor: 1.83 Unique aggregates announced (without unneeded subnets): 12370 Number of IPv4 prefixes with a valid ROA: 5521 Number of IPv4 prefixes with an invalid ROA: 67 Number of IPv4 prefixes with no ROA: 14747 Total ASes present in the Internet Routing Table: 2805 Prefixes per ASN: 7.25 Origin-only ASes present in the Internet Routing Table: 2405 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: 78 Paths with bogon ASNs present in the IPv4 Routing Table: 2 Average AS path length visible in the Internet Routing Table: 4.0 Max AS path length visible: 15 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 6 Number of instances of unregistered ASNs: 6 Number of 32-bit ASNs allocated by the RIRs: 39930 Number of 32-bit ASNs visible in the Routing Table: 640 Prefixes from 32-bit ASNs in the Routing Table: 1798 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: 264565043 Equivalent to 15 /8s, 196 /16s and 241 /24s Percentage of available address space announced: 7.1 Percentage of allocated address space announced: 7.1 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: 2676 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 5066 Total APNIC prefixes after maximum aggregation: 2391 APNIC Deaggregation factor: 2.12 Prefixes being announced from the APNIC address blocks: 4936 Unique aggregates announced from the APNIC address blocks: 2691 APNIC Region origin ASes present in the Internet Routing Table: 576 APNIC Prefixes per ASN: 8.57 APNIC Region origin ASes announcing only one prefix: 251 APNIC Region transit ASes present in the Internet Routing Table: 74 Average APNIC Region AS path length visible: 3.9 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 226 Number of APNIC addresses announced to Internet: 47680364 Equivalent to 2 /8s, 215 /16s and 139 /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: 9183 Total ARIN prefixes after maximum aggregation: 5021 ARIN Deaggregation factor: 1.83 Prefixes being announced from the ARIN address blocks: 9265 Unique aggregates announced from the ARIN address blocks: 5595 ARIN Region origin ASes present in the Internet Routing Table: 1242 ARIN Prefixes per ASN: 7.46 ARIN Region origin ASes announcing only one prefix: 441 ARIN Region transit ASes present in the Internet Routing Table: 161 Average ARIN Region AS path length visible: 3.9 Max ARIN Region AS path length visible: 14 Number of ARIN region 32-bit ASNs visible in the Routing Table: 183 Number of ARIN addresses announced to Internet: 149634913 Equivalent to 8 /8s, 235 /16s and 63 /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: 3677 Total RIPE prefixes after maximum aggregation: 2888 RIPE Deaggregation factor: 1.27 Prefixes being announced from the RIPE address blocks: 3725 Unique aggregates announced from the RIPE address blocks: 2977 RIPE Region origin ASes present in the Internet Routing Table: 691 RIPE Prefixes per ASN: 5.39 RIPE Region origin ASes announcing only one prefix: 308 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: 59687750 Equivalent to 3 /8s, 142 /16s and 195 /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: 1452 Total LACNIC prefixes after maximum aggregation: 580 LACNIC Deaggregation factor: 2.50 Prefixes being announced from the LACNIC address blocks: 1453 Unique aggregates announced from the LACNIC address blocks: 790 LACNIC Region origin ASes present in the Internet Routing Table: 162 LACNIC Prefixes per ASN: 8.97 LACNIC Region origin ASes announcing only one prefix: 64 LACNIC Region transit ASes present in the Internet Routing Table: 27 Average LACNIC Region AS path length visible: 5.0 Max LACNIC Region AS path length visible: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 67 Number of LACNIC addresses announced to Internet: 4794144 Equivalent to 0 /8s, 73 /16s and 39 /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: 951 Total AfriNIC prefixes after maximum aggregation: 217 AfriNIC Deaggregation factor: 4.38 Prefixes being announced from the AfriNIC address blocks: 954 Unique aggregates announced from the AfriNIC address blocks: 315 AfriNIC Region origin ASes present in the Internet Routing Table: 51 AfriNIC Prefixes per ASN: 18.71 AfriNIC Region origin ASes announcing only one prefix: 25 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 4.0 Max AfriNIC Region AS path length visible: 13 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 27 Number of AfriNIC addresses announced to Internet: 2767360 Equivalent to 0 /8s, 42 /16s and 58 /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 622 2156 457 SINET-AS Research Organization of Infor 7497 433 182 24 CSTNET-AS-AP Computer Network Informati 45102 284 475 90 ALIBABA-CN-NET Alibaba US Technology Co 1237 192 74 134 KREONET-AS-KR KISTI, KR 4538 189 4192 73 ERX-CERNET-BKB China Education and Rese 7575 175 329 121 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 15169 747 3282 69 GOOGLE, US 8075 250 10847 214 MICROSOFT-CORP-MSN-AS-BLOCK, US 376 203 178 152 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 2152 159 507 92 CSUNET-NW, US 6939 158 120 109 HURRICANE, US 18558 137 18 4 NETBLK-RCOEK, US 270 120 329 85 AS270, US 23024 114 7 17 OCDE, US 2920 111 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 680 283 1951 250 DFN Verein zur Foerderung eines Deutsch 786 186 1775 183 JANET Jisc Services Limited, GB 8895 179 24 4 ISU Internet Services Unit ISU, SA 559 115 550 106 SWITCH Peering requests: peering@switch 1103 99 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 3267 63 64 27 RUNNET, RU 2200 62 567 57 FR-RENATER Reseau National de telecommu 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 175 208 45 Rede Nacional de Ensino e Pesquisa, BR 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 11340 95 24 54 Red Universitaria Nacional, CL 2715 59 102 39 Fundacao Carlos Chagas Filho de Amparo 1251 58 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 61468 46 3 15 CEDIA, EC 4270 42 16 1 Red de Interconexion Universitaria, AR 28571 41 40 18 UNIVERSIDADE DE SAO PAULO, BR 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 28614 37 2 2 Fundacao Universidade Regional de Blume 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 376 319 73 TENET-1, ZA 36914 230 82 3 KENET-AS, KE 2561 67 4 32 EUN, EG 8094 48 48 15 PUKNET, ZA 327687 38 28 3 RENU, UG 327700 34 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37182 20 1 14 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 15169 747 3282 69 GOOGLE, US 2907 622 2156 457 SINET-AS Research Organization of Infor 7497 433 182 24 CSTNET-AS-AP Computer Network Informati 2018 376 319 73 TENET-1, ZA 45102 284 475 90 ALIBABA-CN-NET Alibaba US Technology Co 680 283 1951 250 DFN Verein zur Foerderung eines Deutsch 8075 250 10847 214 MICROSOFT-CORP-MSN-AS-BLOCK, US 36914 230 82 3 KENET-AS, KE 376 203 178 152 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 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 433 409 CSTNET-AS-AP Computer Network Information Cente 2018 376 303 TENET-1, ZA 36914 230 227 KENET-AS, KE 5786 200 199 UPRENET, PR 45102 284 194 ALIBABA-CN-NET Alibaba US Technology Co., Ltd., 8895 179 175 ISU Internet Services Unit ISU, SA 58647 175 173 KAGAWAU-AS Kagawa University, JP 2907 622 165 SINET-AS Research Organization of Information a 18558 137 133 NETBLK-RCOEK, US 1916 175 130 Rede Nacional de Ensino e Pesquisa, BR 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 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 /11:6 /12:23 /13:37 /14:82 /15:151 /16:2121 /17:464 /18:503 /19:737 /20:901 /21:906 /22:1475 /23:1643 /24:10927 /25:89 /26:56 /27:89 /28:22 /29:19 /30:19 /31:0 /32:60 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 15169 275 747 GOOGLE, US 36914 217 230 KENET-AS, KE 8895 174 179 ISU Internet Services Unit ISU, SA 32440 74 89 LONI, US 6939 61 158 HURRICANE, US 23024 53 114 OCDE, US 8075 37 250 MICROSOFT-CORP-MSN-AS-BLOCK, US 18632 34 63 VOLCANO-VISION, US 46115 32 35 LUTHER, US 25977 31 45 HCCS, 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 8:9 12:1 13:1 14:86 18:43 23:16 24:2 31:7 34:2 35:5 37:8 38:9 40:1 41:129 42:15 43:1 44:5 45:38 46:5 47:40 49:10 50:4 52:2 58:11 59:21 60:4 61:3 62:15 63:39 64:83 65:8 66:44 67:45 68:8 69:20 70:11 71:1 72:17 74:117 76:35 77:8 78:4 79:10 80:20 81:27 82:6 83:6 84:9 85:46 86:10 87:1 88:1 89:10 91:48 92:1 93:10 94:8 95:4 96:5 97:1 98:2 101:4 102:13 103:311 104:76 107:16 108:43 109:10 110:6 111:17 113:4 114:23 116:6 117:61 118:33 119:24 121:28 122:8 123:8 124:39 125:4 128:86 129:38 130:90 131:80 132:56 133:145 134:100 136:200 137:74 138:12 139:5 140:46 141:1 142:153 143:30 144:25 145:2 146:130 147:56 148:192 149:12 150:132 151:6 152:79 153:13 154:30 155:53 156:67 157:29 158:41 159:116 160:26 161:28 162:22 163:71 164:15 165:57 166:1 167:16 168:123 169:10 170:67 172:91 173:86 175:27 176:8 177:11 178:1 179:10 180:19 181:1 182:4 184:6 185:59 186:3 187:19 188:13 189:3 190:34 191:36 192:1444 193:314 194:150 195:94 196:162 197:136 198:525 199:266 200:219 201:38 202:625 203:438 204:350 205:128 206:194 207:172 208:86 209:133 210:183 211:13 212:176 213:5 216:122 217:12 218:22 219:12 220:17 222:6 223:7 End of report