IPv4 R&E Routing Table Report 22:10 GMT Wed 20 Dec, 2023 IPv4 BGP Table (R&E) as seen at CEDIA. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/CEDIA/ Analysis Summary ---------------- BGP routing table entries examined: 25801 Prefixes after maximum aggregation (per Origin AS): 12559 Deaggregation factor: 2.05 Unique aggregates announced (without unneeded subnets): 14166 Number of IPv4 prefixes with a valid ROA: 12729 Number of IPv4 prefixes with an invalid ROA: 202 Number of IPv4 prefixes with no ROA: 12870 Total ASes present in the Internet Routing Table: 2771 Prefixes per ASN: 9.31 Origin-only ASes present in the Internet Routing Table: 2385 Origin ASes announcing only one prefix: 1067 Transit ASes present in the Internet Routing Table: 386 Transit-only ASes present in the Internet Routing Table: 71 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 16 Max AS path prepend of ASN ( 47805) 11 Prefixes from unregistered ASNs in the Routing Table: 11 Number of instances of unregistered ASNs: 11 Number of 32-bit ASNs allocated by the RIRs: 43244 Number of 32-bit ASNs visible in the Routing Table: 657 Prefixes from 32-bit ASNs in the Routing Table: 4773 Number of bogon 32-bit ASNs visible in the Routing Table: 0 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 7 Number of addresses announced to Internet: 241865840 Equivalent to 14 /8s, 106 /16s and 148 /24s Percentage of available address space announced: 6.5 Percentage of allocated address space announced: 6.5 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: 3621 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4651 Total APNIC prefixes after maximum aggregation: 2281 APNIC Deaggregation factor: 2.04 Prefixes being announced from the APNIC address blocks: 4701 Unique aggregates announced from the APNIC address blocks: 2628 APNIC Region origin ASes present in the Internet Routing Table: 543 APNIC Prefixes per ASN: 8.66 APNIC Region origin ASes announcing only one prefix: 232 APNIC Region transit ASes present in the Internet Routing Table: 59 Average APNIC Region AS path length visible: 5.9 Max APNIC Region AS path length visible: 16 Number of APNIC region 32-bit ASNs visible in the Routing Table: 208 Number of APNIC addresses announced to Internet: 45512512 Equivalent to 2 /8s, 182 /16s and 119 /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: 14524 Total ARIN prefixes after maximum aggregation: 6495 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 14320 Unique aggregates announced from the ARIN address blocks: 7296 ARIN Region origin ASes present in the Internet Routing Table: 1234 ARIN Prefixes per ASN: 11.60 ARIN Region origin ASes announcing only one prefix: 434 ARIN Region transit ASes present in the Internet Routing Table: 163 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 15 Number of ARIN region 32-bit ASNs visible in the Routing Table: 200 Number of ARIN addresses announced to Internet: 131408769 Equivalent to 7 /8s, 213 /16s and 35 /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: 3657 Total RIPE prefixes after maximum aggregation: 2906 RIPE Deaggregation factor: 1.26 Prefixes being announced from the RIPE address blocks: 3812 Unique aggregates announced from the RIPE address blocks: 3134 RIPE Region origin ASes present in the Internet Routing Table: 702 RIPE Prefixes per ASN: 5.43 RIPE Region origin ASes announcing only one prefix: 318 RIPE Region transit ASes present in the Internet Routing Table: 104 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 15 Number of RIPE region 32-bit ASNs visible in the Routing Table: 151 Number of RIPE addresses announced to Internet: 58054656 Equivalent to 3 /8s, 117 /16s and 216 /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 196608-216475 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: 1615 Total LACNIC prefixes after maximum aggregation: 692 LACNIC Deaggregation factor: 2.33 Prefixes being announced from the LACNIC address blocks: 1617 Unique aggregates announced from the LACNIC address blocks: 874 LACNIC Region origin ASes present in the Internet Routing Table: 166 LACNIC Prefixes per ASN: 9.74 LACNIC Region origin ASes announcing only one prefix: 55 LACNIC Region transit ASes present in the Internet Routing Table: 29 Average LACNIC Region AS path length visible: 4.6 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 68 Number of LACNIC addresses announced to Internet: 4242095 Equivalent to 0 /8s, 64 /16s and 186 /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: 1343 Total AfriNIC prefixes after maximum aggregation: 176 AfriNIC Deaggregation factor: 7.63 Prefixes being announced from the AfriNIC address blocks: 1344 Unique aggregates announced from the AfriNIC address blocks: 227 AfriNIC Region origin ASes present in the Internet Routing Table: 53 AfriNIC Prefixes per ASN: 25.36 AfriNIC Region origin ASes announcing only one prefix: 28 AfriNIC Region transit ASes present in the Internet Routing Table: 9 Average AfriNIC Region AS path length visible: 4.4 Max AfriNIC Region AS path length visible: 9 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 30 Number of AfriNIC addresses announced to Internet: 2646016 Equivalent to 0 /8s, 40 /16s and 96 /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 603 2162 466 SINET-AS Research Organization of Infor 7497 437 180 23 CSTNET-AS-AP Computer Network Informati 1237 196 74 142 KREONET-AS-KR KISTI, KR 58647 180 18 2 KAGAWAU-AS Kagawa University, JP 7575 176 329 119 AARNET-AS-AP Australian Academic and Re 4538 130 4192 73 ERX-CERNET-BKB China Education and Rese 55824 126 19 17 NKN-CORE-NW NKN Core Network, IN 4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, T 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/CEDIA/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 396982 2739 3638 385 GOOGLE-CLOUD-PLATFORM, US 16509 2196 1649 892 AMAZON-02, US 14618 844 4032 636 AMAZON-AES, US 15169 832 1997 60 GOOGLE, US 376 201 162 151 RISQ-AS, CA 5786 194 16 1 UPRENET, PR 36492 165 12 38 GOOGLEWIFI, US 2152 145 507 93 CSUNET-NW, US 18558 141 18 4 NETBLK-RCOEK, US 81 127 521 30 NCREN, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 283 1899 249 DFN Verein zur Foerderung eines Deutsch 786 185 1767 182 JANET Jisc Services Limited, GB 8895 158 24 5 ISU Internet Services Unit ISU, SA 559 114 533 104 SWITCH Peering requests: peering@switch 1103 95 1503 83 SURFNET-NL SURFnet, The Netherlands, NL 2614 94 27 74 ROEDUNET, RO 137 81 676 77 ASGARR Consortium GARR, IT 1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnol 553 76 462 76 BELWUE BelWue-Koordination, DE 2200 63 598 58 FR-RENATER Reseau National de telecommu Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 250 176 43 Rede Nacional de Ensino e Pesquisa, BR 28391 154 10 67 Universidad Juarez Autonoma de Tabasco, 27947 121 0 92 Telconet S.A, EC 11340 116 25 53 Red Universitaria Nacional, CL 271640 68 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 4270 51 17 4 Red de Interconexion Universitaria, AR 19611 48 17 2 Associacao Antonio Vieira - Unisinos, B 2715 44 99 34 Fundacao Carlos Chagas Filho de Amparo 28614 38 2 2 Fundacao Universidade Regional de Blume 1251 35 32 25 FUNDACAO DE AMPARO A PESQUISA DO ESTADO Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 522 82 3 KENET-AS, KE 2018 381 319 71 TENET-1, ZA 327687 162 28 3 RENU, UG 8094 47 48 18 PUKNET, ZA 327700 47 16 1 MoRENet, MZ 3208 32 2 1 ARN, DZ 6879 24 2 9 ENSTINET-, EG 37074 14 8 2 UG-AS, GH 37215 12 8 1 MAREN, MW 37501 11 49 6 UOFS, ZA Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 396982 2739 3638 385 GOOGLE-CLOUD-PLATFORM, US 16509 2196 1649 892 AMAZON-02, US 14618 844 4032 636 AMAZON-AES, US 15169 832 1997 60 GOOGLE, US 2907 603 2162 466 SINET-AS Research Organization of Infor 36914 522 82 3 KENET-AS, KE 7497 437 180 23 CSTNET-AS-AP Computer Network Informati 2018 381 319 71 TENET-1, ZA 680 283 1899 249 DFN Verein zur Foerderung eines Deutsch 1916 250 176 43 Rede Nacional de Ensino e Pesquisa, BR Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 16509 2196 1304 AMAZON-02, US 15169 832 772 GOOGLE, US 36914 522 519 KENET-AS, KE 7497 437 414 CSTNET-AS-AP Computer Network Information Cente 2018 381 310 TENET-1, ZA 14618 844 208 AMAZON-AES, US 1916 250 207 Rede Nacional de Ensino e Pesquisa, BR 5786 194 193 UPRENET, PR 58647 180 178 KAGAWAU-AS Kagawa University, JP 327687 162 159 RENU, UG Complete listing at https://bgp.nsrc.org/REN/CEDIA/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 11570 UNALLOCATED 192.94.216.0/24 40498 ABQG, US 11570 UNALLOCATED 192.207.226.0/24 40498 ABQG, US 11570 UNALLOCATED 198.59.106.0/24 40498 ABQG, US 11570 UNALLOCATED 198.59.107.0/24 40498 ABQG, US 11570 UNALLOCATED 198.59.108.0/24 40498 ABQG, US 11570 UNALLOCATED 198.59.188.0/24 40498 ABQG, US 11570 UNALLOCATED 198.59.189.0/24 40498 ABQG, US 11570 UNALLOCATED 198.59.190.0/24 40498 ABQG, US 11570 UNALLOCATED 204.134.85.0/24 40498 ABQG, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 170.39.88.0/24 Origin: 14618 AMAZON-AES, US 170.39.88.0/24 Transit: 16509 AMAZON-02, US 192.31.196.0/24 Origin: 112 RESERVED, ZZ 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 198.135.168.0/24 Origin: 14618 AMAZON-AES, US 198.135.168.0/24 Transit: 16509 AMAZON-02, US 216.117.204.0/24 Origin: 14618 AMAZON-AES, US 216.117.204.0/24 Transit: 16509 AMAZON-02, US 216.117.205.0/24 Origin: 14618 AMAZON-AES, US 216.117.205.0/24 Transit: 16509 AMAZON-02, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/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 /10:2 /11:4 /12:19 /13:34 /14:81 /15:161 /16:2104 /17:512 /18:491 /19:743 /20:2795 /21:1043 /22:1677 /23:1740 /24:13978 /25:90 /26:66 /27:74 /28:21 /29:84 /30:37 /31:35 /32:9 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 507 522 KENET-AS, KE 16509 303 2196 AMAZON-02, US 15169 276 832 GOOGLE, US 14618 269 844 AMAZON-AES, US 396982 204 2739 GOOGLE-CLOUD-PLATFORM, US 8895 153 158 ISU Internet Services Unit ISU, SA 27947 98 121 Telconet S.A, EC 32440 81 113 LONI, US 23024 52 109 OCDE, US 327700 41 47 MoRENet, MZ Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 3:82 5:20 8:28 12:1 13:45 14:88 15:70 16:112 18:66 23:111 24:3 31:9 34:23 35:51 38:9 40:5 41:229 42:10 43:2 44:9 45:58 46:11 47:1 49:9 50:3 52:558 54:228 58:1 59:19 60:5 61:3 62:11 63:35 64:162 65:13 66:73 67:61 68:14 69:36 70:44 71:3 72:13 74:145 76:47 77:11 78:3 79:10 80:13 81:25 82:7 83:7 84:10 85:32 86:4 87:4 88:1 89:19 91:58 92:5 93:4 94:4 95:2 96:7 97:1 98:11 99:47 101:3 102:38 103:297 104:219 107:33 108:104 109:10 111:16 114:31 115:1 116:10 117:61 118:32 119:18 121:28 122:8 123:8 124:40 125:5 128:87 129:48 130:137 131:68 132:63 133:155 134:109 135:3 136:292 137:142 138:11 139:17 140:40 141:7 142:284 143:23 144:41 145:3 146:145 147:63 148:202 149:17 150:44 151:16 152:135 153:14 154:30 155:73 156:68 157:24 158:41 159:148 160:30 161:28 162:92 163:85 164:20 165:52 166:1 167:24 168:152 169:12 170:144 171:1 172:114 173:117 174:2 175:18 176:11 177:6 178:1 179:9 180:15 182:1 184:2 185:111 186:3 187:18 188:20 189:3 190:4 191:13 192:1479 193:316 194:122 195:96 196:202 197:323 198:471 199:307 200:319 201:35 202:625 203:425 204:370 205:149 206:204 207:179 208:133 209:165 210:195 211:14 212:160 213:15 216:169 217:12 218:22 219:5 220:16 222:2 223:14 End of report