IPv4 R&E Routing Table Report 20:15 GMT Sat 24 Jun, 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: 20972 Prefixes after maximum aggregation (per Origin AS): 11340 Deaggregation factor: 1.85 Unique aggregates announced (without unneeded subnets): 12573 Number of IPv4 prefixes with a valid ROA: 6533 Number of IPv4 prefixes with an invalid ROA: 29 Number of IPv4 prefixes with no ROA: 14410 Total ASes present in the Internet Routing Table: 2803 Prefixes per ASN: 7.48 Origin-only ASes present in the Internet Routing Table: 2404 Origin ASes announcing only one prefix: 1059 Transit ASes present in the Internet Routing Table: 399 Transit-only ASes present in the Internet Routing Table: 94 Paths with bogon ASNs present in the IPv4 Routing Table: 2 Average AS path length visible in the Internet Routing Table: 3.9 Max AS path length visible: 15 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: 42149 Number of 32-bit ASNs visible in the Routing Table: 624 Prefixes from 32-bit ASNs in the Routing Table: 1928 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: 6 Number of addresses announced to Internet: 270949517 Equivalent to 16 /8s, 38 /16s and 92 /24s Percentage of available address space announced: 7.3 Percentage of allocated address space announced: 7.3 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: 2855 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4956 Total APNIC prefixes after maximum aggregation: 2340 APNIC Deaggregation factor: 2.12 Prefixes being announced from the APNIC address blocks: 4821 Unique aggregates announced from the APNIC address blocks: 2657 APNIC Region origin ASes present in the Internet Routing Table: 531 APNIC Prefixes per ASN: 9.08 APNIC Region origin ASes announcing only one prefix: 221 APNIC Region transit ASes present in the Internet Routing Table: 62 Average APNIC Region AS path length visible: 3.7 Max APNIC Region AS path length visible: 14 Number of APNIC region 32-bit ASNs visible in the Routing Table: 197 Number of APNIC addresses announced to Internet: 47474540 Equivalent to 2 /8s, 212 /16s and 103 /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: 9697 Total ARIN prefixes after maximum aggregation: 5342 ARIN Deaggregation factor: 1.82 Prefixes being announced from the ARIN address blocks: 9709 Unique aggregates announced from the ARIN address blocks: 5821 ARIN Region origin ASes present in the Internet Routing Table: 1259 ARIN Prefixes per ASN: 7.71 ARIN Region origin ASes announcing only one prefix: 440 ARIN Region transit ASes present in the Internet Routing Table: 165 Average ARIN Region AS path length visible: 3.8 Max ARIN Region AS path length visible: 15 Number of ARIN region 32-bit ASNs visible in the Routing Table: 189 Number of ARIN addresses announced to Internet: 148422529 Equivalent to 8 /8s, 216 /16s and 191 /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: 3717 Total RIPE prefixes after maximum aggregation: 2909 RIPE Deaggregation factor: 1.28 Prefixes being announced from the RIPE address blocks: 3833 Unique aggregates announced from the RIPE address blocks: 3067 RIPE Region origin ASes present in the Internet Routing Table: 705 RIPE Prefixes per ASN: 5.44 RIPE Region origin ASes announcing only one prefix: 313 RIPE Region transit ASes present in the Internet Routing Table: 114 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: 147 Number of RIPE addresses announced to Internet: 67499520 Equivalent to 4 /8s, 5 /16s and 246 /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: 1499 Total LACNIC prefixes after maximum aggregation: 568 LACNIC Deaggregation factor: 2.64 Prefixes being announced from the LACNIC address blocks: 1499 Unique aggregates announced from the LACNIC address blocks: 787 LACNIC Region origin ASes present in the Internet Routing Table: 158 LACNIC Prefixes per ASN: 9.49 LACNIC Region origin ASes announcing only one prefix: 58 LACNIC Region transit ASes present in the Internet Routing Table: 26 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: 63 Number of LACNIC addresses announced to Internet: 4744096 Equivalent to 0 /8s, 72 /16s and 99 /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: 1096 Total AfriNIC prefixes after maximum aggregation: 174 AfriNIC Deaggregation factor: 6.30 Prefixes being announced from the AfriNIC address blocks: 1104 Unique aggregates announced from the AfriNIC address blocks: 235 AfriNIC Region origin ASes present in the Internet Routing Table: 52 AfriNIC Prefixes per ASN: 21.23 AfriNIC Region origin ASes announcing only one prefix: 27 AfriNIC Region transit ASes present in the Internet Routing Table: 9 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: 28 Number of AfriNIC addresses announced to Internet: 2803200 Equivalent to 0 /8s, 42 /16s and 198 /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 607 2154 466 SINET-AS Research Organization of Infor 7497 435 180 23 CSTNET-AS-AP Computer Network Informati 45102 311 526 102 ALIBABA-CN-NET Alibaba US Technology Co 1237 197 74 139 KREONET-AS-KR KISTI, KR 58647 178 18 2 KAGAWAU-AS Kagawa University, JP 7575 176 329 120 AARNET-AS-AP Australian Academic and Re 4538 130 4192 73 ERX-CERNET-BKB China Education and Rese 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 826 2257 64 GOOGLE, US 8075 350 12789 295 MICROSOFT-CORP-MSN-AS-BLOCK, US 2152 260 507 94 CSUNET-NW, US 6939 237 124 188 HURRICANE, US 668 211 620 179 DNIC-AS-00668, US 376 202 178 150 RISQ-AS, CA 5786 198 16 1 UPRENET, PR 18558 134 18 4 NETBLK-RCOEK, US 81 128 521 31 NCREN, US 270 117 329 82 AS270, 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 1919 250 DFN Verein zur Foerderung eines Deutsch 786 186 1767 183 JANET Jisc Services Limited, GB 8895 177 24 5 ISU Internet Services Unit ISU, SA 559 112 533 104 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/KREONet2/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 259 192 43 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 1251 55 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 4270 48 16 1 Red de Interconexion Universitaria, AR 61468 43 3 15 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 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 380 319 72 TENET-1, ZA 36914 257 82 3 KENET-AS, KE 327687 164 28 3 RENU, UG 8094 48 48 15 PUKNET, ZA 327700 42 16 1 MoRENet, MZ 37215 37 8 1 MAREN, MW 3208 32 2 1 ARN, DZ 6879 24 2 9 ENSTINET-, EG 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 826 2257 64 GOOGLE, US 2907 607 2154 466 SINET-AS Research Organization of Infor 7497 435 180 23 CSTNET-AS-AP Computer Network Informati 2018 380 319 72 TENET-1, ZA 8075 350 12789 295 MICROSOFT-CORP-MSN-AS-BLOCK, US 45102 311 526 102 ALIBABA-CN-NET Alibaba US Technology Co 680 284 1919 250 DFN Verein zur Foerderung eines Deutsch 2152 260 507 94 CSUNET-NW, US 1916 259 192 43 Rede Nacional de Ensino e Pesquisa, BR 36914 257 82 3 KENET-AS, KE 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 435 412 CSTNET-AS-AP Computer Network Information Cente 2018 380 308 TENET-1, ZA 36914 257 254 KENET-AS, KE 1916 259 216 Rede Nacional de Ensino e Pesquisa, BR 45102 311 209 ALIBABA-CN-NET Alibaba US Technology Co., Ltd., 5786 198 197 UPRENET, PR 58647 178 176 KAGAWAU-AS Kagawa University, JP 8895 177 172 ISU Internet Services Unit ISU, SA 2152 260 166 CSUNET-NW, US 327687 164 161 RENU, UG 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 29867 UNALLOCATED 64.202.80.0/20 22742 CT-EDU-NET, US 138933 UNALLOCATED 103.137.86.0/24 24490 TEIN2-SG-AP Trans-Eurasia In 394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US 33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US 29867 UNALLOCATED 192.160.243.0/24 22742 CT-EDU-NET, US 29867 UNALLOCATED 192.160.244.0/24 22742 CT-EDU-NET, 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 64.202.80.0/20 Origin: 29867 UNASSIGNED 64.202.80.0/20 Transit: 22742 CT-EDU-NET, US 102.36.194.0/23 Origin: 2018 TENET-1, ZA 102.36.194.0/23 Transit: 20965 GEANT The GEANT IP Service, NL 103.137.86.0/24 Origin: 138933 UNASSIGNED 103.137.86.0/24 Transit: 24490 TEIN2-SG-AP Trans-Eurasia Information Ne 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 /13:37 /14:68 /15:155 /16:2161 /17:481 /18:496 /19:731 /20:908 /21:935 /22:1562 /23:1678 /24:11407 /25:90 /26:67 /27:89 /28:18 /29:20 /30:16 /31:1 /32:17 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 15169 273 826 GOOGLE, US 36914 245 257 KENET-AS, KE 8895 172 177 ISU Internet Services Unit ISU, SA 6939 124 237 HURRICANE, US 32440 79 108 LONI, US 8075 61 350 MICROSOFT-CORP-MSN-AS-BLOCK, US 23024 52 112 OCDE, US 1916 39 259 Rede Nacional de Ensino e Pesquisa, BR 327700 36 42 MoRENet, MZ 18632 34 65 VOLCANO-VISION, 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 5:16 6:4 8:8 12:1 13:1 14:89 23:13 24:3 31:7 34:2 35:3 38:9 40:1 41:146 42:10 43:7 44:6 45:46 46:6 47:38 49:6 50:4 52:2 59:19 60:4 61:3 62:21 63:38 64:86 65:8 66:57 67:44 68:8 69:25 70:12 71:1 72:17 74:118 76:41 77:9 78:3 79:10 80:16 81:26 82:7 83:6 84:14 85:43 86:15 87:1 89:11 91:49 92:4 93:4 94:8 95:2 97:2 98:2 101:2 102:33 103:259 104:85 107:54 108:48 109:10 110:2 111:17 113:4 114:23 116:6 117:61 118:32 119:18 121:29 122:8 123:8 124:38 125:4 128:87 129:42 130:86 131:61 132:64 133:155 134:107 135:1 136:201 137:132 138:12 139:7 140:49 141:1 142:259 143:21 144:25 145:4 146:131 147:57 148:193 149:12 150:42 151:11 152:144 153:14 154:33 155:67 156:68 157:23 158:38 159:115 160:27 161:33 162:22 163:79 164:10 165:51 166:2 167:16 168:123 169:8 170:87 171:1 172:92 173:85 175:19 176:9 177:4 178:1 179:12 180:15 181:5 182:1 184:4 185:75 186:3 187:17 188:13 189:3 190:18 191:37 192:1464 193:303 194:152 195:95 196:201 197:163 198:571 199:304 200:300 201:38 202:628 203:438 204:366 205:145 206:192 207:189 208:87 209:150 210:184 211:3 212:174 213:6 214:8 216:129 217:12 218:22 219:6 220:17 222:4 223:16 End of report