IPv4 R&E Routing Table Report 23:05 GMT Sat 15 Mar, 2025 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: 974164 Prefixes after maximum aggregation (per Origin AS): 373612 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 476221 Number of IPv4 prefixes with a valid ROA: 534792 Number of IPv4 prefixes with an invalid ROA: 1008 Number of IPv4 prefixes with no ROA: 438364 Total ASes present in the Internet Routing Table: 76533 Prefixes per ASN: 12.73 Origin-only ASes present in the Internet Routing Table: 65669 Origin ASes announcing only one prefix: 26845 Transit ASes present in the Internet Routing Table: 10864 Transit-only ASes present in the Internet Routing Table: 528 Paths with bogon ASNs present in the IPv4 Routing Table: 10 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 70 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1030 Number of instances of unregistered ASNs: 1034 Number of 32-bit ASNs allocated by the RIRs: 46121 Number of 32-bit ASNs visible in the Routing Table: 37918 Prefixes from 32-bit ASNs in the Routing Table: 199380 Number of bogon 32-bit ASNs visible in the Routing Table: 14 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 515 Number of addresses announced to Internet: 3110549504 Equivalent to 185 /8s, 103 /16s and 56 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 319538 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255234 Total APNIC prefixes after maximum aggregation: 76218 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 247035 Unique aggregates announced from the APNIC address blocks: 102686 APNIC Region origin ASes present in the Internet Routing Table: 14501 APNIC Prefixes per ASN: 17.04 APNIC Region origin ASes announcing only one prefix: 4413 APNIC Region transit ASes present in the Internet Routing Table: 1956 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 43 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10028 Number of APNIC addresses announced to Internet: 749232384 Equivalent to 44 /8s, 168 /16s and 97 /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, 131072-155961 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: 287842 Total ARIN prefixes after maximum aggregation: 128167 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 288638 Unique aggregates announced from the ARIN address blocks: 136552 ARIN Region origin ASes present in the Internet Routing Table: 19174 ARIN Prefixes per ASN: 15.05 ARIN Region origin ASes announcing only one prefix: 7018 ARIN Region transit ASes present in the Internet Routing Table: 1906 Average ARIN Region AS path length visible: 4.5 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5153 Number of ARIN addresses announced to Internet: 1352463872 Equivalent to 80 /8s, 156 /16s and 246 /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, 393216-402332 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, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 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: 271949 Total RIPE prefixes after maximum aggregation: 132584 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270063 Unique aggregates announced from the RIPE address blocks: 173293 RIPE Region origin ASes present in the Internet Routing Table: 28856 RIPE Prefixes per ASN: 9.36 RIPE Region origin ASes announcing only one prefix: 12068 RIPE Region transit ASes present in the Internet Routing Table: 3974 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12313 Number of RIPE addresses announced to Internet: 732198400 Equivalent to 43 /8s, 164 /16s and 118 /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 196608-216475 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 53/8, 57/8, 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: 123080 Total LACNIC prefixes after maximum aggregation: 29230 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 119863 Unique aggregates announced from the LACNIC address blocks: 48794 LACNIC Region origin ASes present in the Internet Routing Table: 11195 LACNIC Prefixes per ASN: 10.71 LACNIC Region origin ASes announcing only one prefix: 2651 LACNIC Region transit ASes present in the Internet Routing Table: 2481 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9156 Number of LACNIC addresses announced to Internet: 171506688 Equivalent to 10 /8s, 56 /16s and 252 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 35029 Total AfriNIC prefixes after maximum aggregation: 6778 AfriNIC Deaggregation factor: 5.17 Prefixes being announced from the AfriNIC address blocks: 48050 Unique aggregates announced from the AfriNIC address blocks: 14474 AfriNIC Region origin ASes present in the Internet Routing Table: 1903 AfriNIC Prefixes per ASN: 25.25 AfriNIC Region origin ASes announcing only one prefix: 695 AfriNIC Region transit ASes present in the Internet Routing Table: 371 Average AfriNIC Region AS path length visible: 5.5 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1268 Number of AfriNIC addresses announced to Internet: 104897792 Equivalent to 6 /8s, 64 /16s and 157 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 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 10323 8753 88 CHINAMOBILE-CN China Mobile Communication 7545 6212 843 658 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4385 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4261 530 276 BBIL-AP BHARTI Airtel Ltd., IN 7552 3912 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3690 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3271 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2841 847 538 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2206 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2172 434 197 TATACOMM-AS TATA Communications formerly 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 12927 39643 3959 AMAZON-02, US 11492 4675 310 585 CABLEONE, US 7155 4174 286 83 VIASAT-SP-BACKBONE, US 174 3678 8765 941 COGENT-174, US 6327 3622 1320 81 SHAW, CA 22773 3380 3035 181 ASN-CXA-ALL-CCI-22773-RDC, US 749 3259 54879 2506 DNIC-AS-00749, US 396982 2944 3660 457 GOOGLE-CLOUD-PLATFORM, US 16625 2936 1237 2167 AKAMAI-AS, US 30036 2546 350 413 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 7755 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3889 3395 126 AKAMAI-ASN1, NL 9009 3753 321 1937 M247, RO 12389 2982 2303 889 ROSTELECOM-AS, RU 34984 2370 361 582 TELLCOM-AS, TR 212238 2042 147 1507 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1551 1852 14 TE-AS TE-AS, EG 62240 1485 98 744 CLOUVIDER Clouvider - Global ASN, GB 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 11821 3241 584 UNINET, MX 10620 3524 487 971 Telmex Colombia S.A., CO 13999 2507 539 368 Mega Cable, S.A. de C.V., MX 11830 1993 369 64 Instituto Costarricense de Electricidad y 28573 1351 2437 265 Claro NXT Telecomunicacoes Ltda, BR 3816 1329 781 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1194 371 22 Telefonica del Peru S.A.A., PE 11664 1156 278 33 Techtel LMDS Comunicaciones Interactivas 6503 1070 359 174 Axtel, S.A.B. de C.V., MX 22884 1049 67 376 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 1683 599 30 RAYA-AS, EG 24863 1619 389 16 LINKdotNET-AS, EG 29571 1562 103 64 ORANGE-COTE-IVOIRE, CI 36992 1426 1518 286 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1006 521 42 Vodafone-, EG 20011 980 183 284 INTERNET-SOLUTIONS, ZA 37069 855 1083 15 MOBINIL, EG 6713 561 1861 35 IAM-AS, MA 36914 543 82 3 KENET-AS, KE 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 16509 12927 39643 3959 AMAZON-02, US 8151 11821 3241 584 UNINET, MX 9808 10323 8753 88 CHINAMOBILE-CN China Mobile Communication 12479 7755 1714 145 UNI2-AS, ES 7545 6212 843 658 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4675 310 585 CABLEONE, US 18403 4385 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4261 530 276 BBIL-AP BHARTI Airtel Ltd., IN 7155 4174 286 83 VIASAT-SP-BACKBONE, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 8151 11821 11237 UNINET, MX 9808 10323 10235 CHINAMOBILE-CN China Mobile Communications Grou 12479 7755 7610 UNI2-AS, ES 7545 6212 5554 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4385 4360 FPT-AS-AP FPT Telecom Company, VN 7155 4174 4091 VIASAT-SP-BACKBONE, US 11492 4675 4090 CABLEONE, US 9498 4261 3985 BBIL-AP BHARTI Airtel Ltd., IN 7552 3912 3886 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 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-D 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, 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 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US 14.192.20.0/22 Transit: 3491 CONSOLE-CONNECT-ASN, US 23.136.12.0/24 Origin: 393772 THE-WRAPPER-COMPANY, ZZ 23.136.12.0/24 Transit: 20473 AS-VULTR, US 23.138.40.0/22 Origin: 964 IONSWITCH-NW, US 23.138.40.0/22 Transit: 20055 AS-WHOLESAIL, US 23.138.41.0/24 Origin: 964 IONSWITCH-NW, US 23.138.41.0/24 Transit: 20055 AS-WHOLESAIL, US 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 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 /9:16 /10:42 /11:92 /12:304 /13:583 /14:1214 /15:2144 /16:13925 /17:8238 /18:13650 /19:24450 /20:43629 /21:51535 /22:111563 /23:100761 /24:602002 /25:0 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6693 7755 UNI2-AS, ES 8151 6024 11821 UNINET, MX 11492 3528 4675 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 3121 4174 VIASAT-SP-BACKBONE, US 22773 2517 3380 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2342 12927 AMAZON-02, US 30036 2207 2546 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2185 3524 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) ---------------------------------------------- 1:2348 2:1502 3:593 4:10 5:4564 6:162 7:6 8:1547 9:1 11:172 12:1375 13:347 14:2509 15:350 16:279 17:362 18:920 20:462 21:4 22:188 23:7282 24:3020 25:2 27:2700 29:19 31:3201 32:36 34:82 35:203 36:2402 37:4615 38:8945 39:900 40:154 41:4248 42:1964 43:2540 44:357 45:18366 46:5013 47:287 49:1989 50:1886 51:591 52:1555 54:301 55:1068 56:9 57:243 58:2188 59:1244 60:1165 61:2820 62:2892 63:1827 64:5488 65:2164 66:4593 67:3008 68:1114 69:3947 70:1110 71:614 72:2854 74:2776 75:1654 76:611 77:2691 78:1855 79:1732 80:2190 81:2014 82:2785 83:1392 84:1806 85:3362 86:1037 87:2155 88:1281 89:4329 90:783 91:8311 92:2788 93:2887 94:3907 95:4254 96:1412 97:317 98:984 99:738 100:71 101:1389 102:3635 103:32274 104:4812 105:733 106:999 107:2599 108:1202 109:4120 110:2231 111:3324 112:2037 113:1799 114:1939 115:2117 116:2036 117:2754 118:2878 119:1943 120:1876 121:1356 122:2727 123:2163 124:1601 125:2886 126:88 128:1542 129:957 130:1264 131:1865 132:778 133:450 134:1529 135:330 136:1285 137:1107 138:2884 139:1615 140:1553 141:1478 142:1815 143:1650 144:1061 145:480 146:2143 147:2089 148:2599 149:2885 150:1244 151:2114 152:2098 153:504 154:7847 155:1623 156:3279 157:1909 158:1269 159:2425 160:3547 161:1935 162:3679 163:1896 164:1697 165:2184 166:1395 167:1879 168:4036 169:787 170:5096 171:1001 172:4425 173:3222 174:910 175:1276 176:3668 177:4742 178:3811 179:2309 180:2564 181:4032 182:3367 183:2071 184:2293 185:21463 186:5089 187:4367 188:4206 189:4175 190:9631 191:1482 192:11129 193:9405 194:7759 195:5517 196:3261 197:3753 198:6064 199:8369 200:8041 201:6295 202:10338 203:10502 204:4501 205:3591 206:4548 207:3439 208:4169 209:5153 210:4509 211:2527 212:4502 213:3718 214:1053 215:42 216:6580 217:3087 218:1326 219:375 220:2105 221:1053 222:719 223:2319 End of report