IPv4 R&E Routing Table Report 23:05 GMT Tue 18 Feb, 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: 972718 Prefixes after maximum aggregation (per Origin AS): 372544 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 475021 Number of IPv4 prefixes with a valid ROA: 530645 Number of IPv4 prefixes with an invalid ROA: 997 Number of IPv4 prefixes with no ROA: 441076 Total ASes present in the Internet Routing Table: 76469 Prefixes per ASN: 12.72 Origin-only ASes present in the Internet Routing Table: 65615 Origin ASes announcing only one prefix: 26859 Transit ASes present in the Internet Routing Table: 10854 Transit-only ASes present in the Internet Routing Table: 525 Paths with bogon ASNs present in the IPv4 Routing Table: 9 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: 1025 Number of instances of unregistered ASNs: 1030 Number of 32-bit ASNs allocated by the RIRs: 46150 Number of 32-bit ASNs visible in the Routing Table: 37781 Prefixes from 32-bit ASNs in the Routing Table: 198972 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: 473 Number of addresses announced to Internet: 3111848704 Equivalent to 185 /8s, 123 /16s and 11 /24s Percentage of available address space announced: 84.1 Percentage of allocated address space announced: 84.1 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: 318578 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255344 Total APNIC prefixes after maximum aggregation: 76512 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 246939 Unique aggregates announced from the APNIC address blocks: 102719 APNIC Region origin ASes present in the Internet Routing Table: 14481 APNIC Prefixes per ASN: 17.05 APNIC Region origin ASes announcing only one prefix: 4427 APNIC Region transit ASes present in the Internet Routing Table: 1949 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10001 Number of APNIC addresses announced to Internet: 753269248 Equivalent to 44 /8s, 229 /16s and 250 /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: 286242 Total ARIN prefixes after maximum aggregation: 127308 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 287528 Unique aggregates announced from the ARIN address blocks: 135361 ARIN Region origin ASes present in the Internet Routing Table: 19168 ARIN Prefixes per ASN: 15.00 ARIN Region origin ASes announcing only one prefix: 7011 ARIN Region transit ASes present in the Internet Routing Table: 1918 Average ARIN Region AS path length visible: 4.5 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5138 Number of ARIN addresses announced to Internet: 1343228416 Equivalent to 80 /8s, 16 /16s and 10 /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: 271316 Total RIPE prefixes after maximum aggregation: 132023 RIPE Deaggregation factor: 2.06 Prefixes being announced from the RIPE address blocks: 268661 Unique aggregates announced from the RIPE address blocks: 172316 RIPE Region origin ASes present in the Internet Routing Table: 28818 RIPE Prefixes per ASN: 9.32 RIPE Region origin ASes announcing only one prefix: 12050 RIPE Region transit ASes present in the Internet Routing Table: 3957 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 30 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12239 Number of RIPE addresses announced to Internet: 732908032 Equivalent to 43 /8s, 175 /16s and 74 /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: 123491 Total LACNIC prefixes after maximum aggregation: 29233 LACNIC Deaggregation factor: 4.22 Prefixes being announced from the LACNIC address blocks: 120803 Unique aggregates announced from the LACNIC address blocks: 48882 LACNIC Region origin ASes present in the Internet Routing Table: 11197 LACNIC Prefixes per ASN: 10.79 LACNIC Region origin ASes announcing only one prefix: 2670 LACNIC Region transit ASes present in the Internet Routing Table: 2483 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: 9132 Number of LACNIC addresses announced to Internet: 177882112 Equivalent to 10 /8s, 154 /16s and 68 /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: 35300 Total AfriNIC prefixes after maximum aggregation: 6821 AfriNIC Deaggregation factor: 5.18 Prefixes being announced from the AfriNIC address blocks: 48314 Unique aggregates announced from the AfriNIC address blocks: 15343 AfriNIC Region origin ASes present in the Internet Routing Table: 1916 AfriNIC Prefixes per ASN: 25.22 AfriNIC Region origin ASes announcing only one prefix: 701 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: 1271 Number of AfriNIC addresses announced to Internet: 104302080 Equivalent to 6 /8s, 55 /16s and 134 /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 10335 8753 88 CHINAMOBILE-CN China Mobile Communication 7545 6211 843 663 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4273 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4239 530 274 BBIL-AP BHARTI Airtel Ltd., IN 7552 3918 1331 25 VIETEL-AS-AP Viettel Group, VN 7713 3685 1036 72 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3256 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2845 854 530 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2207 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2183 434 195 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 12737 38948 3739 AMAZON-02, US 11492 4702 312 561 CABLEONE, US 7155 4172 286 83 VIASAT-SP-BACKBONE, US 6327 3623 1320 81 SHAW, CA 174 3622 8759 901 COGENT-174, US 22773 3376 3035 183 ASN-CXA-ALL-CCI-22773-RDC, US 749 3260 54879 2507 DNIC-AS-00749, US 396982 2927 3660 449 GOOGLE-CLOUD-PLATFORM, US 16625 2925 1250 2160 AKAMAI-AS, US 30036 2586 359 274 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 7769 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3886 3395 127 AKAMAI-ASN1, NL 9009 3724 319 1912 M247, RO 12389 2991 2303 892 ROSTELECOM-AS, RU 34984 2368 361 580 TELLCOM-AS, TR 212238 2027 146 1503 CDNEXT, GB 8452 1615 1852 14 TE-AS TE-AS, EG 13188 1606 100 34 TRIOLAN, UA 62240 1488 98 748 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 11754 3229 596 UNINET, MX 10620 3543 492 950 Telmex Colombia S.A., CO 13999 2499 539 364 Mega Cable, S.A. de C.V., MX 11830 1992 369 64 Instituto Costarricense de Electricidad y 28573 1349 2437 265 Claro NXT Telecomunicacoes Ltda, BR 3816 1329 777 211 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1155 371 22 Telefonica del Peru S.A.A., PE 6503 1127 374 163 Axtel, S.A.B. de C.V., MX 22884 1077 98 372 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 11664 1011 278 33 Techtel LMDS Comunicaciones Interactivas 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 1647 389 16 LINKdotNET-AS, EG 29571 1553 98 103 ORANGE-COTE-IVOIRE, CI 36992 1425 1518 286 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 37069 1094 1088 19 MOBINIL, EG 36935 997 521 42 Vodafone-, EG 20011 980 183 284 INTERNET-SOLUTIONS, ZA 6713 558 1861 35 IAM-AS, MA 15399 529 57 59 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 12737 38948 3739 AMAZON-02, US 8151 11754 3229 596 UNINET, MX 9808 10335 8753 88 CHINAMOBILE-CN China Mobile Communication 12479 7769 1714 145 UNI2-AS, ES 7545 6211 843 663 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4702 312 561 CABLEONE, US 18403 4273 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4239 530 274 BBIL-AP BHARTI Airtel Ltd., IN 7155 4172 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 11754 11158 UNINET, MX 9808 10335 10247 CHINAMOBILE-CN China Mobile Communications Grou 12479 7769 7624 UNI2-AS, ES 7545 6211 5548 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4273 4248 FPT-AS-AP FPT Telecom Company, VN 11492 4702 4141 CABLEONE, US 7155 4172 4089 VIASAT-SP-BACKBONE, US 9498 4239 3965 BBIL-AP BHARTI Airtel Ltd., IN 7552 3918 3893 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 213407 UNALLOCATED 2.56.248.0/24 214466 OLFE AE Olfe Tekn. Ve T 400866 UNALLOCATED 2.59.148.0/23 21859 ZEN-ECN, US 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 40493 UNALLOCATED 8.17.26.0/24 3356 LEVEL3, 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 396894 UNALLOCATED 8.28.201.0/24 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 23.140.16.0/24 Origin: 63371 RESERVED, ZZ 23.140.16.0/24 Transit: 3356 LEVEL3, US 23.140.48.0/24 Origin: 63371 RESERVED, ZZ 23.140.48.0/24 Transit: 7018 ATT-INTERNET4, 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 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 /11:93 /12:307 /13:584 /14:1214 /15:2138 /16:13888 /17:8223 /18:13609 /19:24414 /20:43942 /21:51766 /22:111982 /23:100655 /24:599829 /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 6725 7769 UNI2-AS, ES 8151 5958 11754 UNINET, MX 11492 3556 4702 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3418 3623 SHAW, CA 7155 3119 4172 VIASAT-SP-BACKBONE, US 22773 2511 3376 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2273 12737 AMAZON-02, US 30036 2246 2586 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2183 3543 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) ---------------------------------------------- 1:2305 2:1508 3:571 4:10 5:4510 6:165 7:6 8:1556 9:1 11:172 12:1383 13:347 14:2510 15:348 16:273 17:356 18:916 20:450 21:4 22:188 23:7263 24:2727 25:2 27:2701 29:19 31:3139 32:35 34:81 35:200 36:2405 37:4567 38:8604 39:895 40:154 41:4132 42:1939 43:2522 44:352 45:18339 46:4962 47:291 49:1975 50:1888 51:590 52:1570 54:300 55:1088 56:9 57:239 58:2225 59:1192 60:1167 61:2840 62:2935 63:1821 64:5503 65:2185 66:4608 67:3031 68:1102 69:3978 70:1111 71:605 72:2850 74:2780 75:1639 76:611 77:2658 78:1852 79:1718 80:2207 81:2027 82:2529 83:1410 84:1790 85:3358 86:1021 87:2153 88:1277 89:4321 90:761 91:8305 92:2806 93:2852 94:3910 95:4200 96:1359 97:310 98:979 99:738 100:71 101:1375 102:3710 103:32335 104:4786 105:772 106:994 107:2591 108:1198 109:4081 110:2225 111:3372 112:2049 113:1789 114:1944 115:2170 116:2039 117:2745 118:2883 119:1945 120:1870 121:1355 122:2751 123:2163 124:1603 125:2885 126:94 128:1555 129:954 130:1262 131:1845 132:788 133:450 134:1527 135:325 136:1333 137:1101 138:2878 139:1596 140:1556 141:1486 142:1827 143:1609 144:1066 145:469 146:2124 147:2062 148:2607 149:2846 150:1226 151:1676 152:2104 153:504 154:7855 155:1606 156:3563 157:1887 158:1249 159:2424 160:3555 161:1892 162:3681 163:1801 164:1691 165:2179 166:1359 167:1877 168:4041 169:790 170:5064 171:1002 172:4299 173:3239 174:915 175:1276 176:3605 177:4762 178:3748 179:2229 180:2543 181:3991 182:3365 183:2033 184:2260 185:21434 186:5085 187:4281 188:4219 189:4172 190:9634 191:1520 192:11134 193:9368 194:7742 195:5475 196:3282 197:3759 198:6051 199:8331 200:8060 201:6312 202:10322 203:10545 204:4528 205:3627 206:4566 207:3472 208:4174 209:5118 210:4511 211:2528 212:4513 213:3736 214:1057 215:42 216:6582 217:3099 218:1335 219:376 220:2115 221:1052 222:717 223:2312 End of report