IPv4 R&E Routing Table Report 23:05 GMT Thu 08 May, 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: 977656 Prefixes after maximum aggregation (per Origin AS): 377596 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 479121 Number of IPv4 prefixes with a valid ROA: 542001 Number of IPv4 prefixes with an invalid ROA: 839 Number of IPv4 prefixes with no ROA: 434816 Total ASes present in the Internet Routing Table: 76703 Prefixes per ASN: 12.75 Origin-only ASes present in the Internet Routing Table: 65789 Origin ASes announcing only one prefix: 26949 Transit ASes present in the Internet Routing Table: 10914 Transit-only ASes present in the Internet Routing Table: 540 Paths with bogon ASNs present in the IPv4 Routing Table: 21 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 70 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 981 Number of instances of unregistered ASNs: 983 Number of 32-bit ASNs allocated by the RIRs: 46364 Number of 32-bit ASNs visible in the Routing Table: 38159 Prefixes from 32-bit ASNs in the Routing Table: 201494 Number of bogon 32-bit ASNs visible in the Routing Table: 16 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 465 Number of addresses announced to Internet: 3109948416 Equivalent to 185 /8s, 94 /16s and 12 /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: 320073 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 256582 Total APNIC prefixes after maximum aggregation: 76977 APNIC Deaggregation factor: 3.33 Prefixes being announced from the APNIC address blocks: 247784 Unique aggregates announced from the APNIC address blocks: 103036 APNIC Region origin ASes present in the Internet Routing Table: 14563 APNIC Prefixes per ASN: 17.01 APNIC Region origin ASes announcing only one prefix: 4448 APNIC Region transit ASes present in the Internet Routing Table: 1966 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 35 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10100 Number of APNIC addresses announced to Internet: 748478208 Equivalent to 44 /8s, 156 /16s and 223 /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: 288011 Total ARIN prefixes after maximum aggregation: 129942 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 289288 Unique aggregates announced from the ARIN address blocks: 138641 ARIN Region origin ASes present in the Internet Routing Table: 19207 ARIN Prefixes per ASN: 15.06 ARIN Region origin ASes announcing only one prefix: 7046 ARIN Region transit ASes present in the Internet Routing Table: 1922 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: 5193 Number of ARIN addresses announced to Internet: 1353015552 Equivalent to 80 /8s, 165 /16s and 97 /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: 273226 Total RIPE prefixes after maximum aggregation: 133822 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 271059 Unique aggregates announced from the RIPE address blocks: 174277 RIPE Region origin ASes present in the Internet Routing Table: 28901 RIPE Prefixes per ASN: 9.38 RIPE Region origin ASes announcing only one prefix: 12064 RIPE Region transit ASes present in the Internet Routing Table: 3974 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 47 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12414 Number of RIPE addresses announced to Internet: 731457536 Equivalent to 43 /8s, 153 /16s and 40 /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: 123458 Total LACNIC prefixes after maximum aggregation: 29479 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 119839 Unique aggregates announced from the LACNIC address blocks: 48834 LACNIC Region origin ASes present in the Internet Routing Table: 11223 LACNIC Prefixes per ASN: 10.68 LACNIC Region origin ASes announcing only one prefix: 2696 LACNIC Region transit ASes present in the Internet Routing Table: 2493 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: 9178 Number of LACNIC addresses announced to Internet: 171753728 Equivalent to 10 /8s, 60 /16s and 193 /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: 35398 Total AfriNIC prefixes after maximum aggregation: 6760 AfriNIC Deaggregation factor: 5.24 Prefixes being announced from the AfriNIC address blocks: 49221 Unique aggregates announced from the AfriNIC address blocks: 13947 AfriNIC Region origin ASes present in the Internet Routing Table: 1909 AfriNIC Prefixes per ASN: 25.78 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: 5.4 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1274 Number of AfriNIC addresses announced to Internet: 105020416 Equivalent to 6 /8s, 66 /16s and 124 /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 10793 8756 96 CHINAMOBILE-CN China Mobile Communication 7545 6217 843 657 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4343 533 296 BBIL-AP BHARTI Airtel Ltd., IN 18403 4316 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3907 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3688 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3265 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2863 852 533 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2208 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4766 2188 11523 648 KIXS-AS-KR Korea Telecom, KR 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 13329 40826 4654 AMAZON-02, US 11492 4725 313 592 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3622 1320 81 SHAW, CA 174 3600 8749 893 COGENT-174, US 22773 3348 3034 169 ASN-CXA-ALL-CCI-22773-RDC, US 749 3253 54861 2504 DNIC-AS-00749, US 396982 3150 3851 412 GOOGLE-CLOUD-PLATFORM, US 16625 3012 1260 2219 AKAMAI-AS, US 36352 2780 228 851 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 7696 1714 148 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3955 3395 123 AKAMAI-ASN1, NL 9009 3804 328 1978 M247, RO 12389 3069 2303 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2362 360 584 TELLCOM-AS, TR 212238 2138 151 1579 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1602 1852 14 TE-AS TE-AS, EG 8551 1425 366 39 BEZEQ-INTERNATIONAL-AS Bezeqint Internet 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 12060 3247 582 UNINET, MX 10620 3533 486 993 Telmex Colombia S.A., CO 13999 2511 540 362 Mega Cable, S.A. de C.V., MX 11830 1995 369 64 Instituto Costarricense de Electricidad y 28573 1359 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1190 371 22 Telefonica del Peru S.A.A., PE 11664 1070 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1056 67 379 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1042 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 1744 631 30 RAYA-AS, EG 24863 1650 389 16 LINKdotNET-AS, EG 29571 1599 103 23 ORANGE-COTE-IVOIRE, CI 36992 1431 1518 283 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1036 523 45 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 37069 932 1099 15 MOBINIL, EG 36914 550 82 3 KENET-AS, KE 15399 528 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 13329 40826 4654 AMAZON-02, US 8151 12060 3247 582 UNINET, MX 9808 10793 8756 96 CHINAMOBILE-CN China Mobile Communication 12479 7696 1714 148 UNI2-AS, ES 7545 6217 843 657 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4725 313 592 CABLEONE, US 9498 4343 533 296 BBIL-AP BHARTI Airtel Ltd., IN 18403 4316 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 3955 3395 123 AKAMAI-ASN1, NL 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 12060 11478 UNINET, MX 9808 10793 10697 CHINAMOBILE-CN China Mobile Communications Grou 12479 7696 7548 UNI2-AS, ES 7545 6217 5560 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4316 4291 FPT-AS-AP FPT Telecom Company, VN 11492 4725 4133 CABLEONE, US 9498 4343 4047 BBIL-AP BHARTI Airtel Ltd., IN 7552 3907 3881 VIETEL-AS-AP Viettel Group, VN 20940 3955 3832 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 /12:300 /13:580 /14:1213 /15:2143 /16:13948 /17:8210 /18:13621 /19:24461 /20:43568 /21:51395 /22:111544 /23:101220 /24:605287 /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 6617 7696 UNI2-AS, ES 8151 6257 12060 UNINET, MX 11492 3533 4725 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2496 3348 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2317 13329 AMAZON-02, US 30036 2220 2560 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2199 3533 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) ---------------------------------------------- 1:2339 2:1503 3:705 4:10 5:4677 6:162 7:6 8:1587 9:1 11:172 12:1367 13:376 14:2516 15:353 16:283 17:371 18:920 20:518 21:4 22:188 23:7484 24:2748 25:2 27:2729 29:19 31:3239 32:37 33:1 34:83 35:204 36:2752 37:4634 38:9122 39:909 40:167 41:4182 42:1949 43:2561 44:376 45:18534 46:5030 47:294 49:1932 50:1889 51:591 52:1555 54:306 55:1095 56:11 57:253 58:2201 59:1283 60:1166 61:2811 62:2925 63:1805 64:5456 65:2159 66:4624 67:3056 68:1119 69:3821 70:1085 71:622 72:2847 74:2766 75:1607 76:614 77:2731 78:1872 79:1756 80:2199 81:2047 82:3152 83:1431 84:1846 85:3433 86:1052 87:2145 88:1282 89:4358 90:774 91:8331 92:2713 93:2892 94:4024 95:4322 96:1417 97:312 98:980 99:673 100:72 101:1391 102:3927 103:32158 104:4820 105:756 106:1033 107:2623 108:1212 109:4080 110:2233 111:3358 112:2056 113:1791 114:1969 115:2166 116:2043 117:2616 118:2883 119:1945 120:1889 121:1367 122:2748 123:2167 124:1615 125:2850 126:91 128:1559 129:951 130:1282 131:1939 132:775 133:451 134:1531 135:331 136:1303 137:1114 138:2872 139:1622 140:1574 141:1500 142:1900 143:1713 144:1101 145:503 146:2155 147:2095 148:2683 149:2862 150:1250 151:1847 152:2079 153:493 154:8201 155:1685 156:3371 157:1894 158:1302 159:2440 160:3574 161:1879 162:3720 163:2115 164:1701 165:2199 166:1469 167:1889 168:4032 169:779 170:5057 171:1007 172:4401 173:3259 174:908 175:1296 176:3665 177:4653 178:3622 179:2273 180:2612 181:4068 182:3420 183:2087 184:2050 185:21538 186:5099 187:4426 188:4219 189:4233 190:9608 191:1475 192:11208 193:9464 194:7763 195:5506 196:3287 197:3723 198:6087 199:8478 200:8046 201:6276 202:10210 203:10539 204:4513 205:3593 206:4585 207:3444 208:4241 209:5161 210:4530 211:2535 212:4522 213:3698 214:1027 215:48 216:6698 217:3120 218:1340 219:378 220:2091 221:1077 222:715 223:2359 End of report