IPv4 R&E Routing Table Report 23:05 GMT Wed 06 Aug, 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: 991414 Prefixes after maximum aggregation (per Origin AS): 384175 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 488779 Number of IPv4 prefixes with a valid ROA: 559856 Number of IPv4 prefixes with an invalid ROA: 556 Number of IPv4 prefixes with no ROA: 431002 Total ASes present in the Internet Routing Table: 77056 Prefixes per ASN: 12.87 Origin-only ASes present in the Internet Routing Table: 66000 Origin ASes announcing only one prefix: 26954 Transit ASes present in the Internet Routing Table: 11056 Transit-only ASes present in the Internet Routing Table: 558 Paths with bogon ASNs present in the IPv4 Routing Table: 27 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 52 Max AS path prepend of ASN ( 37447) 36 Prefixes from unregistered ASNs in the Routing Table: 1139 Number of instances of unregistered ASNs: 1171 Number of 32-bit ASNs allocated by the RIRs: 47065 Number of 32-bit ASNs visible in the Routing Table: 38706 Prefixes from 32-bit ASNs in the Routing Table: 206970 Number of bogon 32-bit ASNs visible in the Routing Table: 80 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 429 Number of addresses announced to Internet: 3107097600 Equivalent to 185 /8s, 50 /16s and 140 /24s Percentage of available address space announced: 83.9 Percentage of allocated address space announced: 83.9 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: 322840 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 264502 Total APNIC prefixes after maximum aggregation: 78160 APNIC Deaggregation factor: 3.38 Prefixes being announced from the APNIC address blocks: 255465 Unique aggregates announced from the APNIC address blocks: 105139 APNIC Region origin ASes present in the Internet Routing Table: 14717 APNIC Prefixes per ASN: 17.36 APNIC Region origin ASes announcing only one prefix: 4467 APNIC Region transit ASes present in the Internet Routing Table: 2002 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10276 Number of APNIC addresses announced to Internet: 749510144 Equivalent to 44 /8s, 172 /16s and 158 /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: 290622 Total ARIN prefixes after maximum aggregation: 132174 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 292050 Unique aggregates announced from the ARIN address blocks: 141675 ARIN Region origin ASes present in the Internet Routing Table: 19227 ARIN Prefixes per ASN: 15.19 ARIN Region origin ASes announcing only one prefix: 7049 ARIN Region transit ASes present in the Internet Routing Table: 1929 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5270 Number of ARIN addresses announced to Internet: 1349211136 Equivalent to 80 /8s, 107 /16s and 84 /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: 276184 Total RIPE prefixes after maximum aggregation: 136386 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 275236 Unique aggregates announced from the RIPE address blocks: 178378 RIPE Region origin ASes present in the Internet Routing Table: 28979 RIPE Prefixes per ASN: 9.50 RIPE Region origin ASes announcing only one prefix: 12075 RIPE Region transit ASes present in the Internet Routing Table: 4010 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 35 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12614 Number of RIPE addresses announced to Internet: 732138752 Equivalent to 43 /8s, 163 /16s and 141 /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: 124340 Total LACNIC prefixes after maximum aggregation: 29932 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 120709 Unique aggregates announced from the LACNIC address blocks: 49102 LACNIC Region origin ASes present in the Internet Routing Table: 11274 LACNIC Prefixes per ASN: 10.71 LACNIC Region origin ASes announcing only one prefix: 2655 LACNIC Region transit ASes present in the Internet Routing Table: 2535 Average LACNIC Region AS path length visible: 5.5 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9237 Number of LACNIC addresses announced to Internet: 171059712 Equivalent to 10 /8s, 50 /16s and 42 /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: 34627 Total AfriNIC prefixes after maximum aggregation: 6785 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 47525 Unique aggregates announced from the AfriNIC address blocks: 14107 AfriNIC Region origin ASes present in the Internet Routing Table: 1945 AfriNIC Prefixes per ASN: 24.43 AfriNIC Region origin ASes announcing only one prefix: 708 AfriNIC Region transit ASes present in the Internet Routing Table: 377 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 41 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1309 Number of AfriNIC addresses announced to Internet: 104936448 Equivalent to 6 /8s, 65 /16s and 52 /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 12564 8762 116 CHINAMOBILE-CN China Mobile Communication 7545 6138 837 623 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4582 348 27 FPT-AS-AP FPT Telecom Company, VN 9498 4462 535 311 BBIL-AP BHARTI Airtel Ltd., IN 7552 3909 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3680 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3295 1869 101 VNPT-AS-VN VNPT Corp, VN 56046 2969 812 178 CMNET-JIANGSU-AP China Mobile communicati 24560 2917 864 511 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2177 427 184 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 13685 41055 5274 AMAZON-02, US 11492 4827 320 607 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3635 1320 82 SHAW, CA 174 3623 8769 849 COGENT-174, US 22773 3342 3030 166 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 396982 3202 3856 434 GOOGLE-CLOUD-PLATFORM, US 16625 2921 1236 2176 AKAMAI-AS, US 4155 2896 219 1739 USDA-1, 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 7572 1711 153 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3905 3395 123 AKAMAI-ASN1, NL 9009 3833 363 2153 M247, RO 12389 3111 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2403 361 583 TELLCOM-AS, TR 212238 2312 163 1681 CDNEXT, GB 13188 1605 100 37 TRIOLAN, UA 8452 1580 1852 14 TE-AS TE-AS, EG 203020 1517 190 667 HOSTROYALE, IN 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 12331 3272 577 UNINET, MX 10620 3475 472 1052 Telmex Colombia S.A., CO 13999 2529 511 354 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1374 2435 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1188 371 22 Telefonica del Peru S.A.A., PE 11664 1068 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1063 68 369 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1017 2487 55 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 1770 660 28 RAYA-AS, EG 29571 1480 94 32 ORANGE-COTE-IVOIRE, CI 36992 1416 1494 374 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1237 389 20 LINKdotNET-AS, EG 37069 1086 1112 11 MOBINIL, EG 36935 972 520 43 Vodafone-, EG 36914 573 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 15399 533 56 53 WANANCHI-, 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 13685 41055 5274 AMAZON-02, US 9808 12564 8762 116 CHINAMOBILE-CN China Mobile Communication 8151 12331 3272 577 UNINET, MX 12479 7572 1711 153 UNI2-AS, ES 7545 6138 837 623 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4827 320 607 CABLEONE, US 39891 4798 293 63 ALJAWWALSTC-AS, SA 18403 4582 348 27 FPT-AS-AP FPT Telecom Company, VN 9498 4462 535 311 BBIL-AP BHARTI Airtel Ltd., IN 7552 3909 1332 27 VIETEL-AS-AP Viettel Group, VN 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 12564 12448 CHINAMOBILE-CN China Mobile Communications Grou 8151 12331 11754 UNINET, MX 12479 7572 7419 UNI2-AS, ES 7545 6138 5515 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4582 4555 FPT-AS-AP FPT Telecom Company, VN 11492 4827 4220 CABLEONE, US 9498 4462 4151 BBIL-AP BHARTI Airtel Ltd., IN 7552 3909 3882 VIETEL-AS-AP Viettel Group, VN 20940 3905 3782 AKAMAI-ASN1, NL 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 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 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 398074 UNALLOCATED 8.28.115.0/24 32787 PROLEXIC-TECHNOLOGIES-D 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 395195 UNALLOCATED 8.38.115.0/24 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: 21859 ZEN-ECN, US 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 23.143.100.0/24 Origin: 7029 WINDSTREAM, US 23.143.100.0/24 Transit: 6453 AS6453, 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 /9:14 /10:41 /11:92 /12:298 /13:577 /14:1199 /15:2128 /16:13762 /17:8155 /18:13423 /19:24435 /20:43874 /21:51582 /22:111785 /23:102532 /24:617501 /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 8151 6549 12331 UNINET, MX 12479 6533 7572 UNI2-AS, ES 11492 3619 4827 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3432 3635 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2493 3342 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2336 13685 AMAZON-02, US 30036 2295 2636 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2195 3475 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) ---------------------------------------------- 1:2427 2:1497 3:869 4:10 5:4762 6:163 7:6 8:1544 9:2 11:172 12:1336 13:457 14:2579 15:368 16:286 17:377 18:898 20:562 21:4 22:188 23:7730 24:2667 25:2 27:2783 29:19 31:3363 32:35 33:1 34:83 35:260 36:4197 37:4564 38:9540 39:956 40:250 41:4276 42:2051 43:2732 44:375 45:18697 46:5073 47:336 49:1893 50:2038 51:591 52:1548 54:322 55:1089 56:11 57:270 58:2213 59:1296 60:1184 61:2913 62:2991 63:1778 64:5556 65:2151 66:4741 67:3093 68:1067 69:3882 70:1035 71:624 72:2849 74:2801 75:1505 76:610 77:2780 78:1895 79:1713 80:2205 81:2047 82:3202 83:1436 84:1916 85:3466 86:1095 87:2133 88:1311 89:4417 90:775 91:8407 92:2744 93:2941 94:4080 95:4398 96:1448 97:309 98:955 99:696 100:71 101:1472 102:3879 103:32863 104:5267 105:761 106:976 107:2652 108:1258 109:4184 110:2242 111:3504 112:2397 113:1855 114:1970 115:2203 116:2088 117:2663 118:2969 119:1921 120:2183 121:1318 122:2792 123:2237 124:1705 125:2902 126:91 128:1579 129:965 130:1287 131:2055 132:780 133:450 134:1592 135:352 136:1464 137:1128 138:2830 139:1597 140:1618 141:1531 142:1923 143:1955 144:1179 145:567 146:2174 147:2099 148:2714 149:2947 150:1292 151:2291 152:2091 153:525 154:7591 155:1865 156:3057 157:1942 158:1363 159:2522 160:3596 161:1904 162:3879 163:2244 164:1878 165:2447 166:1532 167:2016 168:3874 169:776 170:5178 171:999 172:4227 173:3414 174:919 175:1326 176:3736 177:4754 178:3944 179:2315 180:2720 181:4148 182:3584 183:2325 184:2063 185:21584 186:5250 187:4642 188:4278 189:4371 190:9527 191:1508 192:11328 193:9474 194:7778 195:5591 196:3277 197:3185 198:6077 199:8595 200:8080 201:6405 202:10378 203:10644 204:4582 205:3585 206:4469 207:3513 208:4271 209:5137 210:4648 211:2642 212:4604 213:3818 214:1028 215:50 216:6774 217:3245 218:1413 219:398 220:2151 221:1207 222:739 223:2792 End of report