IPv4 R&E Routing Table Report 23:05 GMT Thu 10 Apr, 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: 975074 Prefixes after maximum aggregation (per Origin AS): 375081 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 476965 Number of IPv4 prefixes with a valid ROA: 537672 Number of IPv4 prefixes with an invalid ROA: 703 Number of IPv4 prefixes with no ROA: 436699 Total ASes present in the Internet Routing Table: 76633 Prefixes per ASN: 12.72 Origin-only ASes present in the Internet Routing Table: 65739 Origin ASes announcing only one prefix: 26887 Transit ASes present in the Internet Routing Table: 10894 Transit-only ASes present in the Internet Routing Table: 536 Paths with bogon ASNs present in the IPv4 Routing Table: 24 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 72 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1095 Number of instances of unregistered ASNs: 1101 Number of 32-bit ASNs allocated by the RIRs: 46164 Number of 32-bit ASNs visible in the Routing Table: 38047 Prefixes from 32-bit ASNs in the Routing Table: 200119 Number of bogon 32-bit ASNs visible in the Routing Table: 22 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 453 Number of addresses announced to Internet: 3106358272 Equivalent to 185 /8s, 39 /16s and 68 /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: 320234 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255109 Total APNIC prefixes after maximum aggregation: 76477 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 246903 Unique aggregates announced from the APNIC address blocks: 102773 APNIC Region origin ASes present in the Internet Routing Table: 14537 APNIC Prefixes per ASN: 16.98 APNIC Region origin ASes announcing only one prefix: 4445 APNIC Region transit ASes present in the Internet Routing Table: 1970 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 55 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10063 Number of APNIC addresses announced to Internet: 748428544 Equivalent to 44 /8s, 156 /16s and 29 /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: 287796 Total ARIN prefixes after maximum aggregation: 128768 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 288803 Unique aggregates announced from the ARIN address blocks: 137519 ARIN Region origin ASes present in the Internet Routing Table: 19197 ARIN Prefixes per ASN: 15.04 ARIN Region origin ASes announcing only one prefix: 7028 ARIN Region transit ASes present in the Internet Routing Table: 1906 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: 5172 Number of ARIN addresses announced to Internet: 1349581568 Equivalent to 80 /8s, 112 /16s and 251 /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: 272641 Total RIPE prefixes after maximum aggregation: 133203 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270541 Unique aggregates announced from the RIPE address blocks: 173606 RIPE Region origin ASes present in the Internet Routing Table: 28860 RIPE Prefixes per ASN: 9.37 RIPE Region origin ASes announcing only one prefix: 12044 RIPE Region transit ASes present in the Internet Routing Table: 3966 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12365 Number of RIPE addresses announced to Internet: 731288832 Equivalent to 43 /8s, 150 /16s and 149 /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: 123144 Total LACNIC prefixes after maximum aggregation: 29243 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 119828 Unique aggregates announced from the LACNIC address blocks: 48877 LACNIC Region origin ASes present in the Internet Routing Table: 11222 LACNIC Prefixes per ASN: 10.68 LACNIC Region origin ASes announcing only one prefix: 2674 LACNIC Region transit ASes present in the Internet Routing Table: 2476 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9173 Number of LACNIC addresses announced to Internet: 171777536 Equivalent to 10 /8s, 61 /16s and 30 /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: 35289 Total AfriNIC prefixes after maximum aggregation: 6731 AfriNIC Deaggregation factor: 5.24 Prefixes being announced from the AfriNIC address blocks: 48546 Unique aggregates announced from the AfriNIC address blocks: 13801 AfriNIC Region origin ASes present in the Internet Routing Table: 1909 AfriNIC Prefixes per ASN: 25.43 AfriNIC Region origin ASes announcing only one prefix: 696 AfriNIC Region transit ASes present in the Internet Routing Table: 374 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 72 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1274 Number of AfriNIC addresses announced to Internet: 105046784 Equivalent to 6 /8s, 66 /16s and 227 /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 10306 8753 89 CHINAMOBILE-CN China Mobile Communication 7545 6211 843 654 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4264 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4246 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3922 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3672 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3264 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2852 849 537 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2205 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2174 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 13140 39687 4090 AMAZON-02, US 11492 4693 311 586 CABLEONE, US 7155 3829 286 85 VIASAT-SP-BACKBONE, US 174 3636 8765 953 COGENT-174, US 6327 3622 1320 81 SHAW, CA 22773 3402 3036 183 ASN-CXA-ALL-CCI-22773-RDC, US 749 3255 54879 2506 DNIC-AS-00749, US 16625 2971 1245 2202 AKAMAI-AS, US 396982 2951 3649 468 GOOGLE-CLOUD-PLATFORM, US 36352 2632 217 801 AS-COLOCROSSING, 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 7705 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3910 3395 125 AKAMAI-ASN1, NL 9009 3757 324 1953 M247, RO 12389 3067 2303 887 ROSTELECOM-AS, RU 34984 2362 360 580 TELLCOM-AS, TR 212238 2081 147 1531 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1592 1852 14 TE-AS TE-AS, EG 62240 1481 98 745 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 11950 3245 584 UNINET, MX 10620 3536 487 974 Telmex Colombia S.A., CO 13999 2513 539 364 Mega Cable, S.A. de C.V., MX 11830 1993 369 64 Instituto Costarricense de Electricidad y 28573 1357 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1333 784 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1193 371 22 Telefonica del Peru S.A.A., PE 11664 1172 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1050 67 378 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1043 374 163 Axtel, S.A.B. de C.V., MX 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 1702 599 30 RAYA-AS, EG 24863 1643 389 16 LINKdotNET-AS, EG 29571 1580 102 22 ORANGE-COTE-IVOIRE, CI 36992 1430 1518 287 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1028 523 45 Vodafone-, EG 20011 981 185 285 INTERNET-SOLUTIONS, ZA 37069 932 1099 15 MOBINIL, EG 6713 562 1861 35 IAM-AS, MA 36914 551 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 13140 39687 4090 AMAZON-02, US 8151 11950 3245 584 UNINET, MX 9808 10306 8753 89 CHINAMOBILE-CN China Mobile Communication 12479 7705 1714 145 UNI2-AS, ES 7545 6211 843 654 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4693 311 586 CABLEONE, US 9498 4264 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4246 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3922 1332 26 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 8151 11950 11366 UNINET, MX 9808 10306 10217 CHINAMOBILE-CN China Mobile Communications Grou 12479 7705 7560 UNI2-AS, ES 7545 6211 5557 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4246 4221 FPT-AS-AP FPT Telecom Company, VN 11492 4693 4107 CABLEONE, US 9498 4264 3988 BBIL-AP BHARTI Airtel Ltd., IN 7552 3922 3896 VIETEL-AS-AP Viettel Group, VN 20940 3910 3785 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 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 23.140.216.0/24 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 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US 23.155.208.0/24 Origin: 396169 AS-GHCIL-01, US 23.155.208.0/24 Transit: 35985 ONERINGNET-ATL-1, 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 /10:41 /11:93 /12:301 /13:581 /14:1215 /15:2140 /16:13889 /17:8222 /18:13661 /19:24480 /20:43602 /21:51572 /22:111749 /23:101071 /24:602425 /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 6627 7705 UNI2-AS, ES 8151 6151 11950 UNINET, MX 11492 3531 4693 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2787 3829 VIASAT-SP-BACKBONE, US 22773 2538 3402 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2324 13140 AMAZON-02, US 30036 2212 2552 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2198 3536 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) ---------------------------------------------- 1:2341 2:1516 3:615 4:10 5:4598 6:163 7:6 8:1546 9:1 11:172 12:1372 13:351 14:2509 15:352 16:280 17:363 18:921 20:479 21:4 22:188 23:7332 24:2844 25:2 27:2698 29:19 31:3238 32:37 34:83 35:204 36:2398 37:4656 38:8963 39:897 40:160 41:4215 42:1896 43:2559 44:364 45:18440 46:4949 47:287 49:1923 50:1899 51:590 52:1550 54:299 55:735 56:11 57:247 58:2200 59:1255 60:1171 61:2818 62:2905 63:1828 64:5498 65:2175 66:4621 67:3061 68:1118 69:3978 70:1067 71:614 72:2829 74:2793 75:1604 76:611 77:2737 78:1869 79:1739 80:2193 81:2026 82:3114 83:1414 84:1831 85:3387 86:1040 87:2150 88:1277 89:4331 90:775 91:8317 92:2786 93:2896 94:4067 95:4301 96:1443 97:312 98:998 99:643 100:70 101:1400 102:3743 103:32151 104:4760 105:757 106:989 107:2591 108:1197 109:4095 110:2235 111:3356 112:2042 113:1807 114:1968 115:2174 116:2033 117:2734 118:2890 119:1941 120:1870 121:1363 122:2743 123:2165 124:1611 125:2856 126:91 128:1552 129:957 130:1260 131:1888 132:773 133:451 134:1523 135:332 136:1304 137:1097 138:2865 139:1606 140:1556 141:1481 142:1842 143:1640 144:1075 145:514 146:2155 147:2104 148:2653 149:2897 150:1244 151:1742 152:2097 153:503 154:7922 155:1636 156:3188 157:1888 158:1271 159:2440 160:3561 161:1891 162:3714 163:1999 164:1699 165:2203 166:1448 167:1872 168:4038 169:785 170:5078 171:1003 172:4458 173:3223 174:909 175:1292 176:3684 177:4708 178:3784 179:2313 180:2583 181:4053 182:3368 183:2042 184:2135 185:21495 186:5071 187:4398 188:4191 189:4168 190:9623 191:1461 192:11180 193:9418 194:7777 195:5506 196:3286 197:3703 198:6057 199:8446 200:8042 201:6282 202:10329 203:10512 204:4522 205:3624 206:4575 207:3441 208:4197 209:5145 210:4504 211:2531 212:4496 213:3750 214:1052 215:48 216:6604 217:3094 218:1331 219:377 220:2087 221:1067 222:713 223:2317 End of report