IPv4 R&E Routing Table Report 23:05 GMT Thu 16 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: 905033 Prefixes after maximum aggregation (per Origin AS): 345162 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 446080 Number of IPv4 prefixes with a valid ROA: 374008 Number of IPv4 prefixes with an invalid ROA: 1545 Number of IPv4 prefixes with no ROA: 529480 Total ASes present in the Internet Routing Table: 73941 Prefixes per ASN: 12.24 Origin-only ASes present in the Internet Routing Table: 63491 Origin ASes announcing only one prefix: 26079 Transit ASes present in the Internet Routing Table: 10450 Transit-only ASes present in the Internet Routing Table: 439 Paths with bogon ASNs present in the IPv4 Routing Table: 26 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: 1086 Number of instances of unregistered ASNs: 1096 Number of 32-bit ASNs allocated by the RIRs: 41182 Number of 32-bit ASNs visible in the Routing Table: 34108 Prefixes from 32-bit ASNs in the Routing Table: 166735 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: 604 Number of addresses announced to Internet: 3061660160 Equivalent to 182 /8s, 125 /16s and 58 /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: 304679 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 234404 Total APNIC prefixes after maximum aggregation: 68280 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 229311 Unique aggregates announced from the APNIC address blocks: 97829 APNIC Region origin ASes present in the Internet Routing Table: 13204 APNIC Prefixes per ASN: 17.37 APNIC Region origin ASes announcing only one prefix: 3816 APNIC Region transit ASes present in the Internet Routing Table: 1767 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 25 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8540 Number of APNIC addresses announced to Internet: 773021440 Equivalent to 46 /8s, 19 /16s and 95 /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: 266336 Total ARIN prefixes after maximum aggregation: 121114 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 268381 Unique aggregates announced from the ARIN address blocks: 130179 ARIN Region origin ASes present in the Internet Routing Table: 19006 ARIN Prefixes per ASN: 14.12 ARIN Region origin ASes announcing only one prefix: 6976 ARIN Region transit ASes present in the Internet Routing Table: 1892 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: 4720 Number of ARIN addresses announced to Internet: 1285392896 Equivalent to 76 /8s, 157 /16s and 138 /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: 257075 Total RIPE prefixes after maximum aggregation: 120990 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 253476 Unique aggregates announced from the RIPE address blocks: 156601 RIPE Region origin ASes present in the Internet Routing Table: 28206 RIPE Prefixes per ASN: 8.99 RIPE Region origin ASes announcing only one prefix: 12034 RIPE Region transit ASes present in the Internet Routing Table: 3973 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11007 Number of RIPE addresses announced to Internet: 718422272 Equivalent to 42 /8s, 210 /16s and 65 /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: 116803 Total LACNIC prefixes after maximum aggregation: 28246 LACNIC Deaggregation factor: 4.14 Prefixes being announced from the LACNIC address blocks: 116052 Unique aggregates announced from the LACNIC address blocks: 48928 LACNIC Region origin ASes present in the Internet Routing Table: 10955 LACNIC Prefixes per ASN: 10.59 LACNIC Region origin ASes announcing only one prefix: 2653 LACNIC Region transit ASes present in the Internet Routing Table: 2275 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: 8777 Number of LACNIC addresses announced to Internet: 176353536 Equivalent to 10 /8s, 130 /16s and 241 /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: 29329 Total AfriNIC prefixes after maximum aggregation: 5750 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 37209 Unique aggregates announced from the AfriNIC address blocks: 12084 AfriNIC Region origin ASes present in the Internet Routing Table: 1719 AfriNIC Prefixes per ASN: 21.65 AfriNIC Region origin ASes announcing only one prefix: 600 AfriNIC Region transit ASes present in the Internet Routing Table: 336 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: 1064 Number of AfriNIC addresses announced to Internet: 108113408 Equivalent to 6 /8s, 113 /16s and 174 /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 9444 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5821 787 692 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3662 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3545 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3378 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2777 499 238 BBIL-AP BHARTI Airtel Ltd., IN 24560 2355 836 442 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2286 11250 586 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 7951 10726 2895 AMAZON-02, US 11492 4535 300 597 CABLEONE, US 7155 3952 279 45 VIASAT-SP-BACKBONE, US 22773 3651 3064 286 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3503 1320 63 SHAW, CA 16625 3322 1677 2424 AKAMAI-AS, US 749 3036 50571 2303 DNIC-AS-00749, US 396982 2605 3583 352 GOOGLE-CLOUD-PLATFORM, US 7018 2603 24127 1580 ATT-INTERNET4, US 30036 2553 366 379 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 7075 1706 146 UNI2-AS, ES 39891 4561 269 58 ALJAWWALSTC-AS, SA 20940 4012 3399 167 AKAMAI-ASN1, NL 8551 3893 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2896 2292 910 ROSTELECOM-AS, RU 9009 2651 253 1377 M247, RO 34984 2265 359 609 TELLCOM-AS, TR 6849 2256 339 19 UKRTELNET, UA 58224 1846 949 545 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 10814 3346 594 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 2249 373 600 Mega Cable, S.A. de C.V., MX 28573 1350 2328 261 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 1094 179 458 Techtel LMDS Comunicaciones Interactiva 26615 1019 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 1542 533 30 RAYA-AS, EG 24863 1502 393 21 LINKdotNET-AS, EG 36992 1348 1517 277 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1000 67 53 ORANGE-COTE-IVOIRE, CI 36935 886 520 42 Vodafone-, EG 6713 550 1861 34 IAM-AS, MA 15399 527 54 46 WANANCHI-, KE 24757 495 73 5 EthioNet-AS, ET 37342 488 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 10814 3346 594 Uninet S.A. de C.V., MX 9808 9444 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 7951 10726 2895 AMAZON-02, US 12479 7075 1706 146 UNI2-AS, ES 7545 5821 787 692 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 269 58 ALJAWWALSTC-AS, SA 11492 4535 300 597 CABLEONE, US 20940 4012 3399 167 AKAMAI-ASN1, NL 7155 3952 279 45 VIASAT-SP-BACKBONE, US 8551 3893 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 9444 9396 CHINAMOBILE-CN China Mobile Communications Grou 12479 7075 6929 UNI2-AS, ES 7545 5821 5129 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 7951 5056 AMAZON-02, US 39891 4561 4503 ALJAWWALSTC-AS, SA 11492 4535 3938 CABLEONE, US 7155 3952 3907 VIASAT-SP-BACKBONE, US 8551 3893 3856 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 20940 4012 3845 AKAMAI-ASN1, NL 7552 3662 3641 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 7029 WINDSTREAM, 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 /13:576 /14:1201 /15:2072 /16:13426 /17:8200 /18:13711 /19:24804 /20:42906 /21:50808 /22:108934 /23:96671 /24:541246 /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 6135 7075 UNI2-AS, ES 8151 4939 10814 Uninet S.A. de C.V., MX 39891 3552 4561 ALJAWWALSTC-AS, SA 11492 3451 4535 CABLEONE, US 8551 3365 3893 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3311 3503 SHAW, CA 7155 3027 3952 VIASAT-SP-BACKBONE, US 22773 2704 3651 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2210 2553 MEDIACOM-ENTERPRISE-BUSINESS, US 6849 2102 2256 UKRTELNET, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1650 2:1228 3:169 4:5 5:4332 6:114 7:5 8:1515 9:1 11:172 12:1587 13:386 14:2338 15:290 16:103 17:365 18:389 20:248 21:4 22:188 23:6049 24:2495 25:4 27:2523 29:19 31:2489 32:107 34:9 35:104 36:1919 37:4621 38:4146 39:841 40:153 41:4030 42:1056 43:2310 44:300 45:16328 46:4198 47:373 49:1733 50:1827 51:383 52:1577 54:397 55:870 56:8 57:88 58:1674 59:1114 60:986 61:2460 62:2633 63:1929 64:5661 65:2322 66:4922 67:3044 68:1350 69:4138 70:1262 71:660 72:2987 74:2591 75:1458 76:603 77:2403 78:1836 79:3178 80:2088 81:1727 82:1494 83:1238 84:1506 85:2988 86:757 87:1971 88:1232 89:3605 90:609 91:7663 92:2012 93:2594 94:3522 95:3953 96:1335 97:346 98:1161 99:744 100:75 101:1299 102:2596 103:30906 104:4571 105:476 106:844 107:2524 108:911 109:4392 110:2074 111:3284 112:2039 113:1483 114:1605 115:2014 116:1878 117:2552 118:2293 119:1924 120:1739 121:1050 122:2588 123:2137 124:1561 125:2343 128:1259 129:1058 130:986 131:1987 132:824 133:412 134:1904 135:296 136:862 137:929 138:2542 139:1542 140:1178 141:1477 142:1415 143:1469 144:1208 145:349 146:1866 147:1556 148:2258 149:1895 150:865 151:1143 152:1956 153:481 154:3896 155:1418 156:1673 157:1299 158:1003 159:2259 160:2544 161:1414 162:3538 163:1526 164:1568 165:1686 166:843 167:1734 168:3802 169:919 170:4560 171:883 172:3509 173:2970 174:1027 175:1161 176:3719 177:4598 178:3575 179:2187 180:2410 181:3391 182:3250 183:1931 184:2339 185:20033 186:4650 187:3965 188:4111 189:3530 190:9095 191:1448 192:10932 193:8817 194:7248 195:5104 196:3125 197:2409 198:5883 199:6081 200:7633 201:5722 202:10240 203:9992 204:4604 205:3515 206:3790 207:3382 208:4071 209:4815 210:4173 211:2384 212:4077 213:3546 214:1094 215:55 216:6595 217:2639 218:1256 219:400 220:1765 221:972 222:666 223:2120 End of report