IPv4 R&E Routing Table Report 22:10 GMT Mon 15 May, 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: 25085 Prefixes after maximum aggregation (per Origin AS): 12365 Deaggregation factor: 2.03 Unique aggregates announced (without unneeded subnets): 14014 Number of IPv4 prefixes with a valid ROA: 10918 Number of IPv4 prefixes with an invalid ROA: 187 Number of IPv4 prefixes with no ROA: 13980 Total ASes present in the Internet Routing Table: 2729 Prefixes per ASN: 9.19 Origin-only ASes present in the Internet Routing Table: 2350 Origin ASes announcing only one prefix: 1040 Transit ASes present in the Internet Routing Table: 379 Transit-only ASes present in the Internet Routing Table: 66 Paths with bogon ASNs present in the IPv4 Routing Table: 1 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 20 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: 41869 Number of 32-bit ASNs visible in the Routing Table: 630 Prefixes from 32-bit ASNs in the Routing Table: 4493 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: 4 Number of addresses announced to Internet: 243160890 Equivalent to 14 /8s, 126 /16s and 87 /24s Percentage of available address space announced: 6.6 Percentage of allocated address space announced: 6.6 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: 3325 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4629 Total APNIC prefixes after maximum aggregation: 2260 APNIC Deaggregation factor: 2.05 Prefixes being announced from the APNIC address blocks: 4677 Unique aggregates announced from the APNIC address blocks: 2621 APNIC Region origin ASes present in the Internet Routing Table: 535 APNIC Prefixes per ASN: 8.74 APNIC Region origin ASes announcing only one prefix: 224 APNIC Region transit ASes present in the Internet Routing Table: 58 Average APNIC Region AS path length visible: 5.5 Max APNIC Region AS path length visible: 16 Number of APNIC region 32-bit ASNs visible in the Routing Table: 201 Number of APNIC addresses announced to Internet: 45755456 Equivalent to 2 /8s, 186 /16s and 44 /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: 14228 Total ARIN prefixes after maximum aggregation: 6361 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 14031 Unique aggregates announced from the ARIN address blocks: 7171 ARIN Region origin ASes present in the Internet Routing Table: 1225 ARIN Prefixes per ASN: 11.45 ARIN Region origin ASes announcing only one prefix: 426 ARIN Region transit ASes present in the Internet Routing Table: 162 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 20 Number of ARIN region 32-bit ASNs visible in the Routing Table: 190 Number of ARIN addresses announced to Internet: 132593313 Equivalent to 7 /8s, 231 /16s and 54 /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: 3639 Total RIPE prefixes after maximum aggregation: 2878 RIPE Deaggregation factor: 1.26 Prefixes being announced from the RIPE address blocks: 3788 Unique aggregates announced from the RIPE address blocks: 3094 RIPE Region origin ASes present in the Internet Routing Table: 686 RIPE Prefixes per ASN: 5.52 RIPE Region origin ASes announcing only one prefix: 307 RIPE Region transit ASes present in the Internet Routing Table: 105 Average RIPE Region AS path length visible: 4.9 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: 58101760 Equivalent to 3 /8s, 118 /16s and 144 /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: 1639 Total LACNIC prefixes after maximum aggregation: 682 LACNIC Deaggregation factor: 2.40 Prefixes being announced from the LACNIC address blocks: 1642 Unique aggregates announced from the LACNIC address blocks: 892 LACNIC Region origin ASes present in the Internet Routing Table: 161 LACNIC Prefixes per ASN: 10.20 LACNIC Region origin ASes announcing only one prefix: 57 LACNIC Region transit ASes present in the Internet Routing Table: 25 Average LACNIC Region AS path length visible: 4.5 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 66 Number of LACNIC addresses announced to Internet: 4037721 Equivalent to 0 /8s, 61 /16s and 156 /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: 944 Total AfriNIC prefixes after maximum aggregation: 178 AfriNIC Deaggregation factor: 5.30 Prefixes being announced from the AfriNIC address blocks: 943 Unique aggregates announced from the AfriNIC address blocks: 232 AfriNIC Region origin ASes present in the Internet Routing Table: 52 AfriNIC Prefixes per ASN: 18.13 AfriNIC Region origin ASes announcing only one prefix: 26 AfriNIC Region transit ASes present in the Internet Routing Table: 10 Average AfriNIC Region AS path length visible: 4.4 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: 2671360 Equivalent to 0 /8s, 40 /16s and 195 /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 435 182 24 CSTNET-AS-AP Computer Network Informati 1237 194 74 140 KREONET-AS-KR KISTI, KR 58647 178 18 2 KAGAWAU-AS Kagawa University, JP 7575 173 329 119 AARNET-AS-AP Australian Academic and Re 4538 130 4192 73 ERX-CERNET-BKB China Education and Rese 55824 118 18 11 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 4762 65 4 1 MAHIDOL-BORDER-AS Mahidol 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 2643 3591 370 GOOGLE-CLOUD-PLATFORM, US 16509 2070 1642 799 AMAZON-02, US 15169 802 2254 63 GOOGLE, US 14618 771 4014 573 AMAZON-AES, US 376 202 178 150 RISQ-AS, CA 5786 198 16 1 UPRENET, PR 2152 140 507 92 CSUNET-NW, US 18558 134 18 4 NETBLK-RCOEK, US 81 129 521 32 NCREN, US 36492 125 9 32 GOOGLEWIFI, 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 1919 249 DFN Verein zur Foerderung eines Deutsch 786 186 1775 183 JANET Jisc Services Limited, GB 8895 174 24 3 ISU Internet Services Unit ISU, SA 559 112 533 104 SWITCH Peering requests: peering@switch 1103 95 1518 84 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/CEDIA/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 260 208 44 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 27947 119 0 89 Telconet S.A, EC 11340 114 25 51 Red Universitaria Nacional, CL 1251 59 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 4270 45 16 1 Red de Interconexion Universitaria, AR 28614 38 2 2 Fundacao Universidade Regional de Blume 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 28571 37 40 18 UNIVERSIDADE DE SAO PAULO, BR 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 2018 372 319 72 TENET-1, ZA 36914 256 82 3 KENET-AS, KE 327687 57 28 3 RENU, UG 8094 48 48 15 PUKNET, ZA 327700 35 16 1 MoRENet, MZ 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 37654 10 1 6 RwEdNet-AS, RW 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 2643 3591 370 GOOGLE-CLOUD-PLATFORM, US 16509 2070 1642 799 AMAZON-02, US 15169 802 2254 63 GOOGLE, US 14618 771 4014 573 AMAZON-AES, US 2907 607 2154 466 SINET-AS Research Organization of Infor 7497 435 182 24 CSTNET-AS-AP Computer Network Informati 2018 372 319 72 TENET-1, ZA 680 283 1919 249 DFN Verein zur Foerderung eines Deutsch 1916 260 208 44 Rede Nacional de Ensino e Pesquisa, BR 36914 256 82 3 KENET-AS, KE 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 2070 1271 AMAZON-02, US 15169 802 739 GOOGLE, US 7497 435 411 CSTNET-AS-AP Computer Network Information Cente 2018 372 300 TENET-1, ZA 36914 256 253 KENET-AS, KE 1916 260 216 Rede Nacional de Ensino e Pesquisa, BR 14618 771 198 AMAZON-AES, US 5786 198 197 UPRENET, PR 58647 178 176 KAGAWAU-AS Kagawa University, JP 8895 174 171 ISU Internet Services Unit ISU, SA 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 33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US 18838 UNALLOCATED 168.8.240.0/20 3480 PEACHNET-AS3480, US 18838 UNALLOCATED 168.9.0.0/20 3480 PEACHNET-AS3480, US 64507 DOCUMENT 170.79.91.8/29 27817 Red Nacional Academica de Te 394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 76.76.19.0/24 Origin: 16509 AMAZON-02, US 76.76.19.0/24 Transit: 27750 Cooperacion Latino Americana de Redes Av 102.36.194.0/23 Origin: 2018 TENET-1, ZA 102.36.194.0/23 Transit: 27750 Cooperacion Latino Americana de Redes Av 192.31.196.0/24 Origin: 112 UNASSIGNED 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 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 /12:20 /13:34 /14:81 /15:160 /16:2087 /17:490 /18:478 /19:725 /20:2779 /21:1022 /22:1636 /23:1697 /24:13417 /25:94 /26:74 /27:95 /28:27 /29:79 /30:41 /31:31 /32:11 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 16509 285 2070 AMAZON-02, US 15169 274 802 GOOGLE, US 14618 251 771 AMAZON-AES, US 36914 244 256 KENET-AS, KE 396982 186 2643 GOOGLE-CLOUD-PLATFORM, US 8895 169 174 ISU Internet Services Unit ISU, SA 27947 92 119 Telconet S.A, EC 32440 79 107 LONI, US 23024 52 113 OCDE, US 1916 39 260 Rede Nacional de Ensino e Pesquisa, BR Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 3:69 5:18 8:28 12:1 13:43 14:89 15:66 16:105 18:51 23:115 24:3 31:10 34:10 35:48 38:9 40:1 41:108 42:10 44:8 45:55 46:10 47:1 49:6 50:4 52:559 54:228 58:1 59:19 60:4 61:3 62:12 63:36 64:161 65:13 66:65 67:59 68:10 69:35 70:43 71:3 72:13 74:143 76:45 77:11 78:3 79:10 80:17 81:26 82:7 83:6 84:10 85:47 86:4 87:2 88:1 89:17 91:56 92:3 93:4 94:4 95:2 96:7 97:1 98:11 99:47 101:3 102:16 103:270 104:202 107:33 108:99 109:12 110:2 111:16 114:31 115:1 116:8 117:61 118:32 119:21 121:29 122:8 123:8 124:39 125:4 128:87 129:45 130:143 131:60 132:52 133:157 134:100 135:4 136:293 137:101 138:10 139:18 140:36 141:4 142:253 143:29 144:39 145:2 146:143 147:65 148:201 149:16 150:130 151:13 152:146 153:14 154:31 155:65 156:69 157:40 158:40 159:148 160:27 161:32 162:63 163:80 164:20 165:57 166:1 167:20 168:143 169:11 170:112 171:1 172:113 173:112 174:2 175:19 176:11 177:9 178:1 179:9 180:15 182:1 184:3 185:93 186:3 187:18 188:19 189:3 190:5 191:36 192:1462 193:318 194:128 195:84 196:166 197:163 198:485 199:299 200:303 201:36 202:630 203:430 204:367 205:149 206:198 207:188 208:125 209:160 210:189 211:17 212:169 213:15 216:166 217:11 218:22 219:6 220:16 222:5 223:4 End of report