IPv4 R&E Routing Table Report 22:10 GMT Mon 10 Apr, 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: 25269 Prefixes after maximum aggregation (per Origin AS): 12435 Deaggregation factor: 2.03 Unique aggregates announced (without unneeded subnets): 14128 Number of IPv4 prefixes with a valid ROA: 10944 Number of IPv4 prefixes with an invalid ROA: 185 Number of IPv4 prefixes with no ROA: 14140 Total ASes present in the Internet Routing Table: 2777 Prefixes per ASN: 9.10 Origin-only ASes present in the Internet Routing Table: 2393 Origin ASes announcing only one prefix: 1054 Transit ASes present in the Internet Routing Table: 384 Transit-only ASes present in the Internet Routing Table: 67 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: 4 Number of instances of unregistered ASNs: 4 Number of 32-bit ASNs allocated by the RIRs: 41638 Number of 32-bit ASNs visible in the Routing Table: 651 Prefixes from 32-bit ASNs in the Routing Table: 4522 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: 243293782 Equivalent to 14 /8s, 128 /16s and 94 /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: 3345 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4720 Total APNIC prefixes after maximum aggregation: 2312 APNIC Deaggregation factor: 2.04 Prefixes being announced from the APNIC address blocks: 4768 Unique aggregates announced from the APNIC address blocks: 2680 APNIC Region origin ASes present in the Internet Routing Table: 579 APNIC Prefixes per ASN: 8.23 APNIC Region origin ASes announcing only one prefix: 248 APNIC Region transit ASes present in the Internet Routing Table: 61 Average APNIC Region AS path length visible: 5.7 Max APNIC Region AS path length visible: 16 Number of APNIC region 32-bit ASNs visible in the Routing Table: 227 Number of APNIC addresses announced to Internet: 45859392 Equivalent to 2 /8s, 187 /16s and 194 /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: 14245 Total ARIN prefixes after maximum aggregation: 6354 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 14050 Unique aggregates announced from the ARIN address blocks: 7169 ARIN Region origin ASes present in the Internet Routing Table: 1229 ARIN Prefixes per ASN: 11.43 ARIN Region origin ASes announcing only one prefix: 422 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: 20 Number of ARIN region 32-bit ASNs visible in the Routing Table: 191 Number of ARIN addresses announced to Internet: 132596929 Equivalent to 7 /8s, 231 /16s and 68 /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: 3635 Total RIPE prefixes after maximum aggregation: 2876 RIPE Deaggregation factor: 1.26 Prefixes being announced from the RIPE address blocks: 3780 Unique aggregates announced from the RIPE address blocks: 3092 RIPE Region origin ASes present in the Internet Routing Table: 687 RIPE Prefixes per ASN: 5.50 RIPE Region origin ASes announcing only one prefix: 304 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: 14 Number of RIPE region 32-bit ASNs visible in the Routing Table: 142 Number of RIPE addresses announced to Internet: 58009088 Equivalent to 3 /8s, 117 /16s and 38 /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: 1650 Total LACNIC prefixes after maximum aggregation: 680 LACNIC Deaggregation factor: 2.43 Prefixes being announced from the LACNIC address blocks: 1653 Unique aggregates announced from the LACNIC address blocks: 889 LACNIC Region origin ASes present in the Internet Routing Table: 158 LACNIC Prefixes per ASN: 10.46 LACNIC Region origin ASes announcing only one prefix: 53 LACNIC Region transit ASes present in the Internet Routing Table: 26 Average LACNIC Region AS path length visible: 4.6 Max LACNIC Region AS path length visible: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 62 Number of LACNIC addresses announced to Internet: 4168277 Equivalent to 0 /8s, 63 /16s and 154 /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: 1015 Total AfriNIC prefixes after maximum aggregation: 209 AfriNIC Deaggregation factor: 4.86 Prefixes being announced from the AfriNIC address blocks: 1014 Unique aggregates announced from the AfriNIC address blocks: 294 AfriNIC Region origin ASes present in the Internet Routing Table: 54 AfriNIC Prefixes per ASN: 18.78 AfriNIC Region origin ASes announcing only one prefix: 27 AfriNIC Region transit ASes present in the Internet Routing Table: 11 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: 29 Number of AfriNIC addresses announced to Internet: 2658816 Equivalent to 0 /8s, 40 /16s and 146 /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 2160 465 SINET-AS Research Organization of Infor 7497 434 182 24 CSTNET-AS-AP Computer Network Informati 1237 192 74 139 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 117 18 10 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 2630 3590 362 GOOGLE-CLOUD-PLATFORM, US 16509 2064 1642 795 AMAZON-02, US 15169 798 2254 63 GOOGLE, US 14618 765 3994 564 AMAZON-AES, US 5786 199 16 1 UPRENET, PR 376 198 178 148 RISQ-AS, CA 2152 155 507 92 CSUNET-NW, US 18558 139 18 4 NETBLK-RCOEK, US 81 129 521 32 NCREN, US 36492 123 9 30 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 177 24 5 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 73 449 73 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 262 208 44 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 27947 116 0 86 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 383 319 72 TENET-1, ZA 36914 251 82 3 KENET-AS, KE 2561 67 4 34 EUN, EG 327687 63 28 3 RENU, UG 8094 48 48 15 PUKNET, ZA 3208 32 2 1 ARN, DZ 327700 32 16 1 MoRENet, MZ 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/CEDIA/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 396982 2630 3590 362 GOOGLE-CLOUD-PLATFORM, US 16509 2064 1642 795 AMAZON-02, US 15169 798 2254 63 GOOGLE, US 14618 765 3994 564 AMAZON-AES, US 2907 606 2160 465 SINET-AS Research Organization of Infor 7497 434 182 24 CSTNET-AS-AP Computer Network Informati 2018 383 319 72 TENET-1, ZA 680 283 1919 249 DFN Verein zur Foerderung eines Deutsch 1916 262 208 44 Rede Nacional de Ensino e Pesquisa, BR 36914 251 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 2064 1269 AMAZON-02, US 15169 798 735 GOOGLE, US 7497 434 410 CSTNET-AS-AP Computer Network Information Cente 2018 383 311 TENET-1, ZA 36914 251 248 KENET-AS, KE 1916 262 218 Rede Nacional de Ensino e Pesquisa, BR 14618 765 201 AMAZON-AES, US 5786 199 198 UPRENET, PR 58647 178 176 KAGAWAU-AS Kagawa University, JP 8895 177 172 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 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 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 216.169.147.0/24 Origin: 14618 AMAZON-AES, US 216.169.147.0/24 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 /16:2088 /17:494 /18:480 /19:723 /20:2783 /21:1023 /22:1640 /23:1716 /24:13566 /25:96 /26:74 /27:97 /28:27 /29:80 /30:38 /31:31 /32:11 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 16509 288 2064 AMAZON-02, US 15169 273 798 GOOGLE, US 14618 252 765 AMAZON-AES, US 36914 238 251 KENET-AS, KE 396982 181 2630 GOOGLE-CLOUD-PLATFORM, US 8895 172 177 ISU Internet Services Unit ISU, SA 27947 93 116 Telconet S.A, EC 32440 80 108 LONI, US 23024 52 113 OCDE, US 1916 40 262 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 2:1 3:68 5:17 8:28 12:1 13:44 14:89 15:66 16:101 18:50 23:116 24:3 31:10 34:10 35:48 37:1 38:9 40:1 41:104 42:10 44:7 45:54 46:10 47:1 49:6 50:1 52:559 54:228 58:1 59:20 60:4 61:3 62:12 63:36 64:162 65:13 66:64 67:60 68:10 69:34 70:42 71:3 72:13 74:146 76:46 77:11 78:3 79:10 80:17 81:28 82:7 83:6 84:10 85:47 86:11 87:2 88:1 89:17 91:56 92:3 93:4 94:4 95:2 96:7 97:1 98:11 99:47 101:7 102:17 103:327 104:203 107:33 108:99 109:12 110:2 111:16 114:31 115:1 116:8 117:61 118:32 119:21 121:28 122:8 123:8 124:39 125:4 128:86 129:45 130:142 131:59 132:60 133:157 134:100 135:4 136:292 137:106 138:10 139:18 140:39 141:4 142:250 143:27 144:39 145:2 146:144 147:64 148:201 149:16 150:130 151:12 152:146 153:14 154:31 155:65 156:69 157:39 158:41 159:148 160:27 161:32 162:62 163:79 164:20 165:55 166:1 167:23 168:160 169:11 170:111 171:1 172:113 173:112 174:2 175:31 176:11 177:9 178:1 179:8 180:15 182:1 184:3 185:94 186:3 187:19 188:19 189:3 190:5 191:36 192:1449 193:354 194:129 195:90 196:170 197:157 198:492 199:300 200:299 201:36 202:643 203:432 204:369 205:149 206:201 207:185 208:128 209:160 210:185 211:17 212:173 213:15 216:166 217:11 218:22 219:6 220:16 222:5 223:4 End of report