IPv4 R&E Routing Table Report 22:10 GMT Wed 26 Jul, 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: 25210 Prefixes after maximum aggregation (per Origin AS): 12383 Deaggregation factor: 2.04 Unique aggregates announced (without unneeded subnets): 14004 Number of IPv4 prefixes with a valid ROA: 11565 Number of IPv4 prefixes with an invalid ROA: 190 Number of IPv4 prefixes with no ROA: 13455 Total ASes present in the Internet Routing Table: 2732 Prefixes per ASN: 9.23 Origin-only ASes present in the Internet Routing Table: 2344 Origin ASes announcing only one prefix: 1025 Transit ASes present in the Internet Routing Table: 388 Transit-only ASes present in the Internet Routing Table: 75 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: 42301 Number of 32-bit ASNs visible in the Routing Table: 626 Prefixes from 32-bit ASNs in the Routing Table: 4626 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: 5 Number of addresses announced to Internet: 243220192 Equivalent to 14 /8s, 127 /16s and 62 /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: 3341 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4651 Total APNIC prefixes after maximum aggregation: 2254 APNIC Deaggregation factor: 2.06 Prefixes being announced from the APNIC address blocks: 4694 Unique aggregates announced from the APNIC address blocks: 2624 APNIC Region origin ASes present in the Internet Routing Table: 539 APNIC Prefixes per ASN: 8.71 APNIC Region origin ASes announcing only one prefix: 222 APNIC Region transit ASes present in the Internet Routing Table: 59 Average APNIC Region AS path length visible: 5.6 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 201 Number of APNIC addresses announced to Internet: 45774400 Equivalent to 2 /8s, 186 /16s and 118 /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: 14329 Total ARIN prefixes after maximum aggregation: 6404 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 14118 Unique aggregates announced from the ARIN address blocks: 7177 ARIN Region origin ASes present in the Internet Routing Table: 1226 ARIN Prefixes per ASN: 11.52 ARIN Region origin ASes announcing only one prefix: 425 ARIN Region transit ASes present in the Internet Routing Table: 164 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: 132554529 Equivalent to 7 /8s, 230 /16s and 159 /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: 3606 Total RIPE prefixes after maximum aggregation: 2861 RIPE Deaggregation factor: 1.26 Prefixes being announced from the RIPE address blocks: 3769 Unique aggregates announced from the RIPE address blocks: 3088 RIPE Region origin ASes present in the Internet Routing Table: 676 RIPE Prefixes per ASN: 5.58 RIPE Region origin ASes announcing only one prefix: 297 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: 141 Number of RIPE addresses announced to Internet: 57989376 Equivalent to 3 /8s, 116 /16s and 217 /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: 1574 Total LACNIC prefixes after maximum aggregation: 689 LACNIC Deaggregation factor: 2.28 Prefixes being announced from the LACNIC address blocks: 1578 Unique aggregates announced from the LACNIC address blocks: 886 LACNIC Region origin ASes present in the Internet Routing Table: 162 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: 4.5 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: 4238975 Equivalent to 0 /8s, 64 /16s and 174 /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: 1046 Total AfriNIC prefixes after maximum aggregation: 171 AfriNIC Deaggregation factor: 6.12 Prefixes being announced from the AfriNIC address blocks: 1046 Unique aggregates announced from the AfriNIC address blocks: 224 AfriNIC Region origin ASes present in the Internet Routing Table: 51 AfriNIC Prefixes per ASN: 20.51 AfriNIC Region origin ASes announcing only one prefix: 26 AfriNIC Region transit ASes present in the Internet Routing Table: 9 Average AfriNIC Region AS path length visible: 4.5 Max AfriNIC Region AS path length visible: 17 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 27 Number of AfriNIC addresses announced to Internet: 2661632 Equivalent to 0 /8s, 40 /16s and 157 /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 608 2147 466 SINET-AS Research Organization of Infor 7497 434 180 23 CSTNET-AS-AP Computer Network Informati 1237 194 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 122 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 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 2678 3595 384 GOOGLE-CLOUD-PLATFORM, US 16509 2142 1686 846 AMAZON-02, US 15169 826 2253 62 GOOGLE, US 14618 795 4013 592 AMAZON-AES, US 376 199 178 147 RISQ-AS, CA 5786 197 16 1 UPRENET, PR 36492 157 11 35 GOOGLEWIFI, US 2152 142 507 92 CSUNET-NW, US 18558 136 18 4 NETBLK-RCOEK, US 81 128 521 31 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 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 559 111 533 103 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/CEDIA/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 260 176 43 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 27947 125 0 95 Telconet S.A, EC 11340 114 25 51 Red Universitaria Nacional, CL 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 4270 48 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 3596 35 4 3 Universidad Autonoma Metropolitana, MX 263683 35 10 23 Universidad de Costa Rica, CR 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 368 319 71 TENET-1, ZA 36914 256 82 3 KENET-AS, KE 327687 161 28 3 RENU, UG 8094 48 48 15 PUKNET, ZA 327700 43 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 2678 3595 384 GOOGLE-CLOUD-PLATFORM, US 16509 2142 1686 846 AMAZON-02, US 15169 826 2253 62 GOOGLE, US 14618 795 4013 592 AMAZON-AES, US 2907 608 2147 466 SINET-AS Research Organization of Infor 7497 434 180 23 CSTNET-AS-AP Computer Network Informati 2018 368 319 71 TENET-1, ZA 680 283 1903 249 DFN Verein zur Foerderung eines Deutsch 1916 260 176 43 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 2142 1296 AMAZON-02, US 15169 826 764 GOOGLE, US 7497 434 411 CSTNET-AS-AP Computer Network Information Cente 2018 368 297 TENET-1, ZA 36914 256 253 KENET-AS, KE 1916 260 217 Rede Nacional de Ensino e Pesquisa, BR 14618 795 203 AMAZON-AES, US 5786 197 196 UPRENET, PR 58647 178 176 KAGAWAU-AS Kagawa University, JP 8895 163 158 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 192.31.196.0/24 Origin: 112 UNASSIGNED 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 193.37.39.0/24 Origin: 16509 AMAZON-02, US 193.37.39.0/24 Transit: 27750 Cooperacion Latino Americana de Redes Av 193.84.26.0/24 Origin: 16509 AMAZON-02, US 193.84.26.0/24 Transit: 27750 Cooperacion Latino Americana de Redes Av 198.135.168.0/24 Origin: 14618 AMAZON-AES, US 198.135.168.0/24 Transit: 16509 AMAZON-02, US 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/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 /15:161 /16:2082 /17:500 /18:479 /19:728 /20:2770 /21:1018 /22:1632 /23:1711 /24:13547 /25:94 /26:72 /27:80 /28:21 /29:84 /30:41 /31:35 /32:13 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 16509 297 2142 AMAZON-02, US 15169 274 826 GOOGLE, US 14618 259 795 AMAZON-AES, US 36914 244 256 KENET-AS, KE 396982 197 2678 GOOGLE-CLOUD-PLATFORM, US 8895 158 163 ISU Internet Services Unit ISU, SA 27947 98 125 Telconet S.A, EC 32440 80 109 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 3:78 5:20 8:28 12:1 13:45 14:89 15:69 16:112 18:57 23:114 24:3 31:10 34:20 35:47 38:9 40:1 41:120 42:10 43:1 44:8 45:58 46:11 47:1 49:9 50:2 52:558 54:228 58:1 59:19 60:4 61:3 62:11 63:36 64:167 65:13 66:66 67:60 68:10 69:36 70:44 71:3 72:13 74:143 76:46 77:11 78:3 79:6 80:14 81:26 82:7 83:6 84:10 85:45 86:10 87:2 88:1 89:18 91:56 92:4 93:3 94:4 95:1 96:7 97:1 98:11 99:47 101:3 102:31 103:282 104:216 107:33 108:102 109:12 111:16 114:31 115:1 116:8 117:61 118:32 119:18 121:28 122:8 123:8 124:38 125:4 128:87 129:45 130:143 131:58 132:60 133:155 134:105 135:3 136:294 137:145 138:10 139:17 140:36 141:4 142:275 143:21 144:39 145:3 146:145 147:66 148:201 149:16 150:43 151:14 152:138 153:14 154:30 155:73 156:69 157:28 158:43 159:148 160:27 161:36 162:86 163:83 164:20 165:50 166:1 167:22 168:156 169:12 170:123 171:1 172:114 173:113 174:2 175:27 176:11 177:5 178:1 179:9 180:15 182:1 184:3 185:103 186:3 187:18 188:19 189:3 190:5 191:13 192:1475 193:308 194:125 195:82 196:201 197:161 198:488 199:306 200:277 201:36 202:632 203:431 204:368 205:147 206:203 207:190 208:129 209:161 210:185 211:3 212:167 213:15 216:167 217:9 218:22 219:6 220:16 222:2 223:14 End of report