IPv4 R&E Routing Table Report 20:15 GMT Wed 12 Jul, 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: 21006 Prefixes after maximum aggregation (per Origin AS): 11356 Deaggregation factor: 1.85 Unique aggregates announced (without unneeded subnets): 12588 Number of IPv4 prefixes with a valid ROA: 6783 Number of IPv4 prefixes with an invalid ROA: 29 Number of IPv4 prefixes with no ROA: 14194 Total ASes present in the Internet Routing Table: 2823 Prefixes per ASN: 7.44 Origin-only ASes present in the Internet Routing Table: 2415 Origin ASes announcing only one prefix: 1062 Transit ASes present in the Internet Routing Table: 408 Transit-only ASes present in the Internet Routing Table: 102 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: 19 Max AS path prepend of ASN (395156) 12 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: 42266 Number of 32-bit ASNs visible in the Routing Table: 636 Prefixes from 32-bit ASNs in the Routing Table: 1934 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: 5 Number of addresses announced to Internet: 271034381 Equivalent to 16 /8s, 39 /16s and 168 /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: 2813 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 5001 Total APNIC prefixes after maximum aggregation: 2361 APNIC Deaggregation factor: 2.12 Prefixes being announced from the APNIC address blocks: 4860 Unique aggregates announced from the APNIC address blocks: 2689 APNIC Region origin ASes present in the Internet Routing Table: 541 APNIC Prefixes per ASN: 8.98 APNIC Region origin ASes announcing only one prefix: 225 APNIC Region transit ASes present in the Internet Routing Table: 66 Average APNIC Region AS path length visible: 3.7 Max APNIC Region AS path length visible: 13 Number of APNIC region 32-bit ASNs visible in the Routing Table: 204 Number of APNIC addresses announced to Internet: 47457900 Equivalent to 2 /8s, 212 /16s and 38 /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: 9752 Total ARIN prefixes after maximum aggregation: 5354 ARIN Deaggregation factor: 1.82 Prefixes being announced from the ARIN address blocks: 9769 Unique aggregates announced from the ARIN address blocks: 5838 ARIN Region origin ASes present in the Internet Routing Table: 1262 ARIN Prefixes per ASN: 7.74 ARIN Region origin ASes announcing only one prefix: 441 ARIN Region transit ASes present in the Internet Routing Table: 167 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: 193 Number of ARIN addresses announced to Internet: 148547329 Equivalent to 8 /8s, 218 /16s and 167 /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: 3690 Total RIPE prefixes after maximum aggregation: 2900 RIPE Deaggregation factor: 1.27 Prefixes being announced from the RIPE address blocks: 3808 Unique aggregates announced from the RIPE address blocks: 3059 RIPE Region origin ASes present in the Internet Routing Table: 701 RIPE Prefixes per ASN: 5.43 RIPE Region origin ASes announcing only one prefix: 308 RIPE Region transit ASes present in the Internet Routing Table: 113 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: 146 Number of RIPE addresses announced to Internet: 67494144 Equivalent to 4 /8s, 5 /16s and 225 /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: 1478 Total LACNIC prefixes after maximum aggregation: 563 LACNIC Deaggregation factor: 2.63 Prefixes being announced from the LACNIC address blocks: 1477 Unique aggregates announced from the LACNIC address blocks: 764 LACNIC Region origin ASes present in the Internet Routing Table: 164 LACNIC Prefixes per ASN: 9.01 LACNIC Region origin ASes announcing only one prefix: 63 LACNIC Region transit ASes present in the Internet Routing Table: 27 Average LACNIC Region AS path length visible: 5.1 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: 4735648 Equivalent to 0 /8s, 72 /16s and 66 /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: 1079 Total AfriNIC prefixes after maximum aggregation: 172 AfriNIC Deaggregation factor: 6.27 Prefixes being announced from the AfriNIC address blocks: 1087 Unique aggregates announced from the AfriNIC address blocks: 233 AfriNIC Region origin ASes present in the Internet Routing Table: 50 AfriNIC Prefixes per ASN: 21.74 AfriNIC Region origin ASes announcing only one prefix: 25 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: 26 Number of AfriNIC addresses announced to Internet: 2793984 Equivalent to 0 /8s, 42 /16s and 162 /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 606 2147 466 SINET-AS Research Organization of Infor 7497 431 180 23 CSTNET-AS-AP Computer Network Informati 45102 317 528 103 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 177 329 120 AARNET-AS-AP Australian Academic and Re 4538 130 4192 73 ERX-CERNET-BKB China Education and Rese 55824 121 18 14 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 829 2257 64 GOOGLE, US 8075 355 12789 300 MICROSOFT-CORP-MSN-AS-BLOCK, US 2152 274 507 94 CSUNET-NW, US 6939 239 125 190 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 680 283 1903 249 DFN Verein zur Foerderung eines Deutsch 786 186 1767 183 JANET Jisc Services Limited, GB 8895 163 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 258 176 42 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 56 36 15 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 4270 48 16 1 Red de Interconexion Universitaria, AR 61468 42 3 14 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 3596 35 4 3 Universidad Autonoma Metropolitana, MX 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 364 319 72 TENET-1, ZA 36914 259 82 3 KENET-AS, KE 327687 166 28 3 RENU, UG 8094 48 48 15 PUKNET, ZA 327700 39 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 829 2257 64 GOOGLE, US 2907 606 2147 466 SINET-AS Research Organization of Infor 7497 431 180 23 CSTNET-AS-AP Computer Network Informati 2018 364 319 72 TENET-1, ZA 8075 355 12789 300 MICROSOFT-CORP-MSN-AS-BLOCK, US 45102 317 528 103 ALIBABA-CN-NET Alibaba US Technology Co 680 283 1903 249 DFN Verein zur Foerderung eines Deutsch 2152 274 507 94 CSUNET-NW, US 36914 259 82 3 KENET-AS, KE 1916 258 176 42 Rede Nacional de Ensino e Pesquisa, BR 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 431 408 CSTNET-AS-AP Computer Network Information Cente 2018 364 292 TENET-1, ZA 36914 259 256 KENET-AS, KE 1916 258 216 Rede Nacional de Ensino e Pesquisa, BR 45102 317 214 ALIBABA-CN-NET Alibaba US Technology Co., Ltd., 5786 198 197 UPRENET, PR 2152 274 180 CSUNET-NW, US 58647 178 176 KAGAWAU-AS Kagawa University, JP 327687 166 163 RENU, UG 8895 163 158 ISU Internet Services Unit ISU, SA 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 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 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 202.58.231.0/24 Origin: 134096 EHEALTHNSW-AS-AP eHealth NSW, AU 202.58.231.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res 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 /17:484 /18:498 /19:739 /20:914 /21:938 /22:1566 /23:1674 /24:11433 /25:89 /26:65 /27:78 /28:18 /29:20 /30:16 /31:1 /32:17 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 15169 273 829 GOOGLE, US 36914 247 259 KENET-AS, KE 8895 158 163 ISU Internet Services Unit ISU, SA 6939 125 239 HURRICANE, US 32440 79 108 LONI, US 8075 62 355 MICROSOFT-CORP-MSN-AS-BLOCK, US 23024 52 113 OCDE, US 1916 39 258 Rede Nacional de Ensino e Pesquisa, BR 18632 34 66 VOLCANO-VISION, US 327700 34 39 MoRENet, MZ 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 23:14 24:3 31:7 34:2 35:3 38:9 40:1 41:143 42:10 43:7 44:6 45:48 46:6 47:38 49:9 50:4 52:2 58:1 59:19 60:4 61:3 62:20 63:38 64:86 65:8 66:57 67:44 68:8 69:25 70:12 71:1 72:17 74:118 76:41 77:10 78:3 79:10 80:12 81:26 82:7 83:6 84:12 85:43 86:15 87:1 89:11 91:50 92:4 93:4 94:8 95:2 97:2 98:2 101:2 102:33 103:285 104:86 107:54 108:48 109:10 110:2 111:17 113:4 114:23 116:6 117:61 118:32 119:18 121:28 122:8 123:8 124:37 125:4 128:87 129:42 130:89 131:60 132:62 133:155 134:107 135:1 136:201 137:134 138:11 139:6 140:49 141:1 142:262 143:21 144:28 145:4 146:131 147:59 148:193 149:12 150:45 151:11 152:136 153:14 154:33 155:65 156:68 157:23 158:38 159:115 160:27 161:37 162:22 163:80 164:10 165:46 166:2 167:16 168:116 169:8 170:89 171:1 172:92 173:86 175:27 176:9 177:5 178:1 179:12 180:15 181:5 182:1 184:4 185:77 186:3 187:17 188:13 189:3 190:18 191:14 192:1467 193:300 194:150 195:95 196:205 197:166 198:581 199:306 200:297 201:38 202:632 203:437 204:366 205:145 206:193 207:191 208:87 209:152 210:182 211:3 212:173 213:6 214:8 216:129 217:12 218:22 219:6 220:17 222:2 223:16 End of report