IPv4 R&E Routing Table Report 23:05 GMT Mon 13 Feb, 2023 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 904307 Prefixes after maximum aggregation (per Origin AS): 344834 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 445909 Number of IPv4 prefixes with a valid ROA: 373029 Number of IPv4 prefixes with an invalid ROA: 1527 Number of IPv4 prefixes with no ROA: 529751 Total ASes present in the Internet Routing Table: 73892 Prefixes per ASN: 12.24 Origin-only ASes present in the Internet Routing Table: 63452 Origin ASes announcing only one prefix: 26108 Transit ASes present in the Internet Routing Table: 10440 Transit-only ASes present in the Internet Routing Table: 430 Paths with bogon ASNs present in the IPv4 Routing Table: 25 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 66 Max AS path prepend of ASN ( 37447) 64 Prefixes from unregistered ASNs in the Routing Table: 1021 Number of instances of unregistered ASNs: 1031 Number of 32-bit ASNs allocated by the RIRs: 41187 Number of 32-bit ASNs visible in the Routing Table: 34062 Prefixes from 32-bit ASNs in the Routing Table: 166078 Number of bogon 32-bit ASNs visible in the Routing Table: 26 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 543 Number of addresses announced to Internet: 3061513984 Equivalent to 182 /8s, 122 /16s and 255 /24s Percentage of available address space announced: 82.7 Percentage of allocated address space announced: 82.7 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: 304402 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 233968 Total APNIC prefixes after maximum aggregation: 68143 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 228912 Unique aggregates announced from the APNIC address blocks: 97689 APNIC Region origin ASes present in the Internet Routing Table: 13176 APNIC Prefixes per ASN: 17.37 APNIC Region origin ASes announcing only one prefix: 3810 APNIC Region transit ASes present in the Internet Routing Table: 1770 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 25 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8519 Number of APNIC addresses announced to Internet: 772973312 Equivalent to 46 /8s, 18 /16s and 163 /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: 266410 Total ARIN prefixes after maximum aggregation: 121097 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 268500 Unique aggregates announced from the ARIN address blocks: 130239 ARIN Region origin ASes present in the Internet Routing Table: 19015 ARIN Prefixes per ASN: 14.12 ARIN Region origin ASes announcing only one prefix: 6995 ARIN Region transit ASes present in the Internet Routing Table: 1900 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4728 Number of ARIN addresses announced to Internet: 1285412608 Equivalent to 76 /8s, 157 /16s and 215 /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: 256767 Total RIPE prefixes after maximum aggregation: 120859 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 253133 Unique aggregates announced from the RIPE address blocks: 156584 RIPE Region origin ASes present in the Internet Routing Table: 28211 RIPE Prefixes per ASN: 8.97 RIPE Region origin ASes announcing only one prefix: 12025 RIPE Region transit ASes present in the Internet Routing Table: 3977 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 34 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11000 Number of RIPE addresses announced to Internet: 718379776 Equivalent to 42 /8s, 209 /16s and 155 /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: 116765 Total LACNIC prefixes after maximum aggregation: 28231 LACNIC Deaggregation factor: 4.14 Prefixes being announced from the LACNIC address blocks: 115969 Unique aggregates announced from the LACNIC address blocks: 48905 LACNIC Region origin ASes present in the Internet Routing Table: 10949 LACNIC Prefixes per ASN: 10.59 LACNIC Region origin ASes announcing only one prefix: 2673 LACNIC Region transit ASes present in the Internet Routing Table: 2271 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 48 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8749 Number of LACNIC addresses announced to Internet: 176357120 Equivalent to 10 /8s, 130 /16s and 255 /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: 29376 Total AfriNIC prefixes after maximum aggregation: 5750 AfriNIC Deaggregation factor: 5.11 Prefixes being announced from the AfriNIC address blocks: 37250 Unique aggregates announced from the AfriNIC address blocks: 12064 AfriNIC Region origin ASes present in the Internet Routing Table: 1721 AfriNIC Prefixes per ASN: 21.64 AfriNIC Region origin ASes announcing only one prefix: 605 AfriNIC Region transit ASes present in the Internet Routing Table: 332 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 66 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1066 Number of AfriNIC addresses announced to Internet: 108063744 Equivalent to 6 /8s, 112 /16s and 236 /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 9808 9442 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5844 788 706 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3639 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3534 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3377 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2759 499 238 BBIL-AP BHARTI Airtel Ltd., IN 24560 2355 836 442 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2287 11250 587 KIXS-AS-KR Korea Telecom, KR 4755 2161 440 212 TATACOMM-AS TATA Communications formerl 45090 2148 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 7948 10732 2853 AMAZON-02, US 11492 4535 300 599 CABLEONE, US 7155 3899 265 33 VIASAT-SP-BACKBONE, US 22773 3651 3064 286 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3503 1320 63 SHAW, CA 16625 3320 1678 2422 AKAMAI-AS, US 749 3039 50571 2306 DNIC-AS-00749, US 396982 2604 3583 352 GOOGLE-CLOUD-PLATFORM, US 7018 2593 24127 1575 ATT-INTERNET4, US 30036 2538 364 431 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7013 1706 146 UNI2-AS, ES 39891 4561 269 58 ALJAWWALSTC-AS, SA 20940 4016 3399 167 AKAMAI-ASN1, NL 8551 3892 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2896 2292 910 ROSTELECOM-AS, RU 9009 2677 255 1380 M247, RO 34984 2266 359 609 TELLCOM-AS, TR 6849 2249 339 19 UKRTELNET, UA 58224 1845 948 544 TCI, IR 13188 1607 100 27 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 11054 3347 588 Uninet S.A. de C.V., MX 10620 3476 507 862 Telmex Colombia S.A., CO 11830 2263 369 64 Instituto Costarricense de Electricidad 13999 2245 375 606 Mega Cable, S.A. de C.V., MX 28573 1351 2328 263 Claro NXT Telecomunicacoes Ltda, BR 6503 1298 339 518 Axtel, S.A.B. de C.V., MX 3816 1292 746 156 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1151 370 22 Telefonica del Peru S.A.A., PE 11664 1096 180 460 Techtel LMDS Comunicaciones Interactiva 26615 1020 2498 45 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1540 533 30 RAYA-AS, EG 24863 1506 393 21 LINKdotNET-AS, EG 36992 1348 1517 277 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 998 67 53 ORANGE-COTE-IVOIRE, CI 36935 886 520 42 Vodafone-, EG 6713 551 1861 34 IAM-AS, MA 15399 512 52 40 WANANCHI-, KE 24757 495 73 5 EthioNet-AS, ET 37342 494 32 1 MOVITEL, MZ Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 11054 3347 588 Uninet S.A. de C.V., MX 9808 9442 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 7948 10732 2853 AMAZON-02, US 12479 7013 1706 146 UNI2-AS, ES 7545 5844 788 706 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 269 58 ALJAWWALSTC-AS, SA 11492 4535 300 599 CABLEONE, US 20940 4016 3399 167 AKAMAI-ASN1, NL 7155 3899 265 33 VIASAT-SP-BACKBONE, US 8551 3892 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 9442 9394 CHINAMOBILE-CN China Mobile Communications Grou 12479 7013 6867 UNI2-AS, ES 7545 5844 5138 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 7948 5095 AMAZON-02, US 39891 4561 4503 ALJAWWALSTC-AS, SA 11492 4535 3936 CABLEONE, US 7155 3899 3866 VIASAT-SP-BACKBONE, US 8551 3892 3855 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 20940 4016 3849 AKAMAI-ASN1, NL 7552 3639 3618 VIETEL-AS-AP Viettel Group, VN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 3507 UNALLOCATED 5.105.166.0/24 213035 AS-SERVERION Serverion B.V., 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 16641 UNALLOCATED 8.10.194.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.10.210.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.12.250.0/24 3356 LEVEL3, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 53775 UNALLOCATED 8.20.88.0/24 3356 LEVEL3, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 1618 UNALLOCATED 8.21.143.0/24 136796 CL-JP-AS CORELINK JAPAN, JP 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.185.0/24 Origin: 174 COGENT-174, US 23.131.185.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.187.0/24 Origin: 174 COGENT-174, US 23.131.187.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.188.0/24 Origin: 174 COGENT-174, US 23.131.188.0/24 Transit: 2914 NTT-LTD-2914, US 23.136.112.0/24 Origin: 54835 UNASSIGNED 23.136.112.0/24 Transit: 21559 OSNET, PR Complete listing at https://bgp.nsrc.org/REN/Singapore/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 /8:16 /9:13 /10:38 /11:103 /12:299 /13:577 /14:1201 /15:2073 /16:13439 /17:8220 /18:13757 /19:24806 /20:42897 /21:50843 /22:108765 /23:96608 /24:540643 /25:0 /26:1 /27:1 /28:0 /29:1 /30:6 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6074 7013 UNI2-AS, ES 8151 5094 11054 Uninet S.A. de C.V., MX 39891 3552 4561 ALJAWWALSTC-AS, SA 11492 3450 4535 CABLEONE, US 8551 3364 3892 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3311 3503 SHAW, CA 7155 2988 3899 VIASAT-SP-BACKBONE, US 22773 2705 3651 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2196 2538 MEDIACOM-ENTERPRISE-BUSINESS, US 6849 2095 2249 UKRTELNET, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1627 2:1227 3:168 4:5 5:4328 6:114 7:5 8:1515 9:1 11:172 12:1587 13:393 14:2340 15:290 16:79 17:365 18:396 20:245 21:4 22:188 23:6048 24:2494 25:4 27:2519 29:19 31:2504 32:105 34:8 35:104 36:1910 37:4587 38:4151 39:838 40:154 41:4032 42:1054 43:2311 44:301 45:16326 46:4151 47:373 49:1733 50:1827 51:383 52:1568 54:397 55:868 56:8 57:88 58:1673 59:1116 60:988 61:2457 62:2629 63:1932 64:5663 65:2321 66:4920 67:3042 68:1348 69:4144 70:1250 71:660 72:2987 74:2593 75:1457 76:601 77:2380 78:1838 79:3179 80:2085 81:1720 82:1490 83:1235 84:1508 85:2988 86:757 87:1961 88:1230 89:3602 90:596 91:7656 92:2014 93:2594 94:3545 95:3939 96:1333 97:347 98:1159 99:743 100:75 101:1300 102:2598 103:30769 104:4495 105:485 106:844 107:2529 108:909 109:4392 110:2071 111:3295 112:2040 113:1484 114:1607 115:2014 116:1874 117:2551 118:2289 119:1917 120:1737 121:1049 122:2586 123:2137 124:1561 125:2317 128:1260 129:1056 130:977 131:1974 132:825 133:406 134:1907 135:315 136:862 137:929 138:2548 139:1538 140:1182 141:1474 142:1414 143:1466 144:1203 145:349 146:1866 147:1551 148:2264 149:1889 150:867 151:1138 152:1949 153:481 154:3908 155:1414 156:1673 157:1297 158:1006 159:2259 160:2536 161:1410 162:3514 163:1515 164:1553 165:1680 166:831 167:1735 168:3832 169:920 170:4563 171:882 172:3515 173:2959 174:1025 175:1161 176:3696 177:4510 178:3572 179:2184 180:2408 181:3392 182:3245 183:1929 184:2340 185:20017 186:4630 187:3968 188:4106 189:3496 190:9074 191:1446 192:10937 193:8809 194:7231 195:5109 196:3141 197:2411 198:5897 199:6083 200:7656 201:5870 202:10226 203:9984 204:4596 205:3505 206:3799 207:3389 208:4068 209:4819 210:4169 211:2384 212:4074 213:3545 214:1097 215:55 216:6588 217:2641 218:1255 219:400 220:1766 221:969 222:665 223:2095 End of report