IPv4 R&E Routing Table Report 23:05 GMT Sun 19 Mar, 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: 908125 Prefixes after maximum aggregation (per Origin AS): 345723 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 446577 Number of IPv4 prefixes with a valid ROA: 379339 Number of IPv4 prefixes with an invalid ROA: 1670 Number of IPv4 prefixes with no ROA: 527116 Total ASes present in the Internet Routing Table: 74052 Prefixes per ASN: 12.26 Origin-only ASes present in the Internet Routing Table: 63610 Origin ASes announcing only one prefix: 26119 Transit ASes present in the Internet Routing Table: 10442 Transit-only ASes present in the Internet Routing Table: 442 Paths with bogon ASNs present in the IPv4 Routing Table: 31 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: 1088 Number of instances of unregistered ASNs: 1103 Number of 32-bit ASNs allocated by the RIRs: 41479 Number of 32-bit ASNs visible in the Routing Table: 34283 Prefixes from 32-bit ASNs in the Routing Table: 167913 Number of bogon 32-bit ASNs visible in the Routing Table: 43 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 509 Number of addresses announced to Internet: 3061967872 Equivalent to 182 /8s, 129 /16s and 236 /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: 305434 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 235223 Total APNIC prefixes after maximum aggregation: 68288 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 229911 Unique aggregates announced from the APNIC address blocks: 97711 APNIC Region origin ASes present in the Internet Routing Table: 13270 APNIC Prefixes per ASN: 17.33 APNIC Region origin ASes announcing only one prefix: 3879 APNIC Region transit ASes present in the Internet Routing Table: 1776 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8617 Number of APNIC addresses announced to Internet: 773100800 Equivalent to 46 /8s, 20 /16s and 149 /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: 266879 Total ARIN prefixes after maximum aggregation: 121233 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 269010 Unique aggregates announced from the ARIN address blocks: 130173 ARIN Region origin ASes present in the Internet Routing Table: 19002 ARIN Prefixes per ASN: 14.16 ARIN Region origin ASes announcing only one prefix: 6969 ARIN Region transit ASes present in the Internet Routing Table: 1891 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4736 Number of ARIN addresses announced to Internet: 1285373184 Equivalent to 76 /8s, 157 /16s and 61 /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: 257948 Total RIPE prefixes after maximum aggregation: 121435 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 254248 Unique aggregates announced from the RIPE address blocks: 157123 RIPE Region origin ASes present in the Internet Routing Table: 28262 RIPE Prefixes per ASN: 9.00 RIPE Region origin ASes announcing only one prefix: 12029 RIPE Region transit ASes present in the Internet Routing Table: 3974 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 38 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11086 Number of RIPE addresses announced to Internet: 718364160 Equivalent to 42 /8s, 209 /16s and 94 /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: 117463 Total LACNIC prefixes after maximum aggregation: 28196 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 116837 Unique aggregates announced from the LACNIC address blocks: 49020 LACNIC Region origin ASes present in the Internet Routing Table: 10965 LACNIC Prefixes per ASN: 10.66 LACNIC Region origin ASes announcing only one prefix: 2649 LACNIC Region transit ASes present in the Internet Routing Table: 2278 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 49 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8774 Number of LACNIC addresses announced to Internet: 176605440 Equivalent to 10 /8s, 134 /16s and 201 /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: 29524 Total AfriNIC prefixes after maximum aggregation: 5790 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 37610 Unique aggregates announced from the AfriNIC address blocks: 12147 AfriNIC Region origin ASes present in the Internet Routing Table: 1723 AfriNIC Prefixes per ASN: 21.83 AfriNIC Region origin ASes announcing only one prefix: 593 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: 1070 Number of AfriNIC addresses announced to Internet: 108139776 Equivalent to 6 /8s, 114 /16s and 21 /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 9470 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5757 786 690 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3686 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3544 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3362 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2854 499 238 BBIL-AP BHARTI Airtel Ltd., IN 24560 2361 837 441 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2306 11250 586 KIXS-AS-KR Korea Telecom, KR 4755 2174 440 214 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 8102 10766 2861 AMAZON-02, US 11492 4528 300 621 CABLEONE, US 7155 3966 279 45 VIASAT-SP-BACKBONE, US 22773 3645 3065 297 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3505 1320 64 SHAW, CA 16625 3167 1591 2339 AKAMAI-AS, US 749 3037 50520 2304 DNIC-AS-00749, US 396982 2621 3587 354 GOOGLE-CLOUD-PLATFORM, US 7018 2564 24119 1570 ATT-INTERNET4, US 30036 2507 361 485 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 7067 1705 149 UNI2-AS, ES 39891 4833 286 59 ALJAWWALSTC-AS, SA 20940 4042 3399 163 AKAMAI-ASN1, NL 8551 3888 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2901 2292 912 ROSTELECOM-AS, RU 9009 2635 250 1379 M247, RO 34984 2269 359 611 TELLCOM-AS, TR 6849 2164 339 19 UKRTELNET, UA 58224 1850 950 543 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 11182 3341 589 Uninet S.A. de C.V., MX 10620 3474 504 880 Telmex Colombia S.A., CO 13999 2293 373 608 Mega Cable, S.A. de C.V., MX 11830 2264 369 64 Instituto Costarricense de Electricidad 28573 1371 2325 248 Claro NXT Telecomunicacoes Ltda, BR 3816 1301 763 161 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6503 1299 339 514 Axtel, S.A.B. de C.V., MX 6147 1130 370 22 Telefonica del Peru S.A.A., PE 11664 1096 180 459 Techtel LMDS Comunicaciones Interactiva 26615 1029 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 24863 1571 393 19 LINKdotNET-AS, EG 24835 1542 533 30 RAYA-AS, EG 36992 1343 1518 275 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1016 67 53 ORANGE-COTE-IVOIRE, CI 36935 868 520 42 Vodafone-, EG 6713 550 1861 34 IAM-AS, MA 15399 529 54 47 WANANCHI-, KE 37342 493 32 1 MOVITEL, MZ 24757 486 73 5 EthioNet-AS, ET 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 11182 3341 589 Uninet S.A. de C.V., MX 9808 9470 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 8102 10766 2861 AMAZON-02, US 12479 7067 1705 149 UNI2-AS, ES 7545 5757 786 690 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 286 59 ALJAWWALSTC-AS, SA 11492 4528 300 621 CABLEONE, US 20940 4042 3399 163 AKAMAI-ASN1, NL 7155 3966 279 45 VIASAT-SP-BACKBONE, US 8551 3888 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 9470 9422 CHINAMOBILE-CN China Mobile Communications Grou 12479 7067 6918 UNI2-AS, ES 16509 8102 5241 AMAZON-02, US 7545 5757 5067 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4774 ALJAWWALSTC-AS, SA 7155 3966 3921 VIASAT-SP-BACKBONE, US 11492 4528 3907 CABLEONE, US 20940 4042 3879 AKAMAI-ASN1, NL 8551 3888 3851 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3686 3665 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 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 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US 18798 UNALLOCATED 8.40.106.0/24 6461 ZAYO-6461, 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 /14:1198 /15:2074 /16:13427 /17:8176 /18:13695 /19:24818 /20:42901 /21:51011 /22:108839 /23:96998 /24:543934 /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 6125 7067 UNI2-AS, ES 8151 5139 11182 Uninet S.A. de C.V., MX 39891 3632 4833 ALJAWWALSTC-AS, SA 11492 3436 4528 CABLEONE, US 8551 3360 3888 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3314 3505 SHAW, CA 7155 3041 3966 VIASAT-SP-BACKBONE, US 22773 2697 3645 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2164 2507 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2028 3474 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1667 2:1222 3:170 4:5 5:4426 6:113 7:6 8:1514 9:1 11:172 12:1577 13:395 14:2313 15:296 16:111 17:367 18:402 20:249 21:4 22:188 23:6100 24:2488 25:6 27:2499 29:19 31:2507 32:101 34:10 35:104 36:1922 37:4620 38:4333 39:807 40:150 41:4014 42:953 43:2310 44:310 45:16427 46:4225 47:370 49:1736 50:1827 51:570 52:1587 54:388 55:869 56:8 57:91 58:1675 59:1078 60:972 61:2460 62:2620 63:1933 64:5649 65:2308 66:4907 67:3018 68:1364 69:4114 70:1264 71:665 72:2973 74:2586 75:1463 76:604 77:2419 78:1838 79:3164 80:2075 81:1735 82:1502 83:1229 84:1514 85:2997 86:747 87:1958 88:1234 89:3602 90:612 91:7672 92:2017 93:2564 94:3550 95:3956 96:1329 97:331 98:1165 99:748 100:77 101:1300 102:2672 103:31090 104:4592 105:481 106:896 107:2555 108:960 109:4382 110:2060 111:3199 112:2057 113:1491 114:1621 115:2017 116:1897 117:2560 118:2281 119:1967 120:1737 121:1049 122:2588 123:2134 124:1577 125:2414 128:1247 129:1058 130:999 131:2006 132:834 133:421 134:1897 135:301 136:867 137:933 138:2564 139:1518 140:1210 141:1475 142:1429 143:1498 144:1161 145:356 146:1915 147:1559 148:2300 149:1947 150:874 151:1148 152:1959 153:488 154:4232 155:1417 156:1673 157:1277 158:1046 159:2265 160:2537 161:1471 162:3536 163:1494 164:1590 165:1704 166:847 167:1726 168:3863 169:924 170:4609 171:886 172:3503 173:2924 174:1019 175:1159 176:3663 177:4615 178:3636 179:2178 180:2437 181:3409 182:3315 183:1934 184:2346 185:20144 186:4726 187:3996 188:4057 189:3577 190:9103 191:1458 192:10941 193:8813 194:7249 195:5136 196:3169 197:2391 198:5893 199:6083 200:7727 201:5868 202:10319 203:10172 204:4616 205:3544 206:3833 207:3394 208:4065 209:4843 210:4175 211:2386 212:4087 213:3532 214:1095 215:58 216:6599 217:2659 218:1266 219:407 220:1758 221:973 222:678 223:2131 End of report