IPv4 R&E Routing Table Report 23:05 GMT Wed 09 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: 974708 Prefixes after maximum aggregation (per Origin AS): 374961 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 476552 Number of IPv4 prefixes with a valid ROA: 536983 Number of IPv4 prefixes with an invalid ROA: 715 Number of IPv4 prefixes with no ROA: 437010 Total ASes present in the Internet Routing Table: 76636 Prefixes per ASN: 12.72 Origin-only ASes present in the Internet Routing Table: 65750 Origin ASes announcing only one prefix: 26895 Transit ASes present in the Internet Routing Table: 10886 Transit-only ASes present in the Internet Routing Table: 541 Paths with bogon ASNs present in the IPv4 Routing Table: 25 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: 1086 Number of instances of unregistered ASNs: 1092 Number of 32-bit ASNs allocated by the RIRs: 46148 Number of 32-bit ASNs visible in the Routing Table: 38039 Prefixes from 32-bit ASNs in the Routing Table: 200003 Number of bogon 32-bit ASNs visible in the Routing Table: 24 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 447 Number of addresses announced to Internet: 3106419200 Equivalent to 185 /8s, 40 /16s and 50 /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: 320159 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255111 Total APNIC prefixes after maximum aggregation: 76487 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 246851 Unique aggregates announced from the APNIC address blocks: 102729 APNIC Region origin ASes present in the Internet Routing Table: 14535 APNIC Prefixes per ASN: 16.98 APNIC Region origin ASes announcing only one prefix: 4442 APNIC Region transit ASes present in the Internet Routing Table: 1971 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: 10065 Number of APNIC addresses announced to Internet: 748408320 Equivalent to 44 /8s, 155 /16s and 206 /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: 287553 Total ARIN prefixes after maximum aggregation: 128602 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 288656 Unique aggregates announced from the ARIN address blocks: 137359 ARIN Region origin ASes present in the Internet Routing Table: 19196 ARIN Prefixes per ASN: 15.04 ARIN Region origin ASes announcing only one prefix: 7034 ARIN Region transit ASes present in the Internet Routing Table: 1904 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: 5171 Number of ARIN addresses announced to Internet: 1349355264 Equivalent to 80 /8s, 109 /16s and 135 /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: 272619 Total RIPE prefixes after maximum aggregation: 133245 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270506 Unique aggregates announced from the RIPE address blocks: 173583 RIPE Region origin ASes present in the Internet Routing Table: 28870 RIPE Prefixes per ASN: 9.37 RIPE Region origin ASes announcing only one prefix: 12054 RIPE Region transit ASes present in the Internet Routing Table: 3972 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: 12364 Number of RIPE addresses announced to Internet: 731515392 Equivalent to 43 /8s, 154 /16s and 10 /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: 123119 Total LACNIC prefixes after maximum aggregation: 29243 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 119800 Unique aggregates announced from the LACNIC address blocks: 48861 LACNIC Region origin ASes present in the Internet Routing Table: 11218 LACNIC Prefixes per ASN: 10.68 LACNIC Region origin ASes announcing only one prefix: 2676 LACNIC Region transit ASes present in the Internet Routing Table: 2464 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: 9171 Number of LACNIC addresses announced to Internet: 171834880 Equivalent to 10 /8s, 61 /16s and 254 /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: 35220 Total AfriNIC prefixes after maximum aggregation: 6723 AfriNIC Deaggregation factor: 5.24 Prefixes being announced from the AfriNIC address blocks: 48448 Unique aggregates announced from the AfriNIC address blocks: 13634 AfriNIC Region origin ASes present in the Internet Routing Table: 1903 AfriNIC Prefixes per ASN: 25.46 AfriNIC Region origin ASes announcing only one prefix: 689 AfriNIC Region transit ASes present in the Internet Routing Table: 373 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: 1268 Number of AfriNIC addresses announced to Internet: 105071872 Equivalent to 6 /8s, 67 /16s and 69 /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 10307 8753 89 CHINAMOBILE-CN China Mobile Communication 7545 6212 843 655 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4262 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4250 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3922 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3674 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3265 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 12994 39641 3938 AMAZON-02, US 11492 4687 311 584 CABLEONE, US 7155 3828 286 85 VIASAT-SP-BACKBONE, US 174 3636 8765 953 COGENT-174, US 6327 3622 1320 81 SHAW, CA 22773 3401 3036 184 ASN-CXA-ALL-CCI-22773-RDC, US 749 3255 54879 2506 DNIC-AS-00749, US 16625 2973 1246 2204 AKAMAI-AS, US 396982 2949 3649 466 GOOGLE-CLOUD-PLATFORM, US 36352 2635 217 805 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 7714 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3907 3395 125 AKAMAI-ASN1, NL 9009 3762 325 1958 M247, RO 12389 3066 2301 885 ROSTELECOM-AS, RU 34984 2364 360 581 TELLCOM-AS, TR 212238 2082 148 1532 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1575 1852 14 TE-AS TE-AS, EG 62240 1480 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 11939 3244 585 UNINET, MX 10620 3536 487 974 Telmex Colombia S.A., CO 13999 2512 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 1191 371 22 Telefonica del Peru S.A.A., PE 11664 1172 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1048 67 377 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1040 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 1574 102 22 ORANGE-COTE-IVOIRE, CI 36992 1429 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 561 1861 35 IAM-AS, MA 36914 544 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 12994 39641 3938 AMAZON-02, US 8151 11939 3244 585 UNINET, MX 9808 10307 8753 89 CHINAMOBILE-CN China Mobile Communication 12479 7714 1714 145 UNI2-AS, ES 7545 6212 843 655 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4687 311 584 CABLEONE, US 9498 4262 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4250 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 11939 11354 UNINET, MX 9808 10307 10218 CHINAMOBILE-CN China Mobile Communications Grou 12479 7714 7569 UNI2-AS, ES 7545 6212 5557 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4250 4225 FPT-AS-AP FPT Telecom Company, VN 11492 4687 4103 CABLEONE, US 9498 4262 3986 BBIL-AP BHARTI Airtel Ltd., IN 7552 3922 3896 VIETEL-AS-AP Viettel Group, VN 20940 3907 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 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 /16:13891 /17:8227 /18:13665 /19:24470 /20:43582 /21:51545 /22:111664 /23:101042 /24:602219 /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 6635 7714 UNI2-AS, ES 8151 6142 11939 UNINET, MX 11492 3531 4687 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2787 3828 VIASAT-SP-BACKBONE, US 22773 2536 3401 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2334 12994 AMAZON-02, US 30036 2209 2549 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) ---------------------------------------------- 1:2339 2:1516 3:613 4:10 5:4608 6:163 7:6 8:1548 9:1 11:172 12:1373 13:350 14:2508 15:352 16:280 17:363 18:921 20:478 21:4 22:188 23:7325 24:2843 25:2 27:2697 29:19 31:3228 32:37 34:83 35:204 36:2396 37:4657 38:8973 39:899 40:160 41:4217 42:1894 43:2551 44:367 45:18434 46:4948 47:288 49:1923 50:1900 51:590 52:1550 54:300 55:749 56:11 57:248 58:2200 59:1253 60:1171 61:2815 62:2905 63:1829 64:5491 65:2179 66:4620 67:3061 68:1117 69:3978 70:1067 71:616 72:2825 74:2799 75:1604 76:611 77:2736 78:1873 79:1737 80:2193 81:2017 82:3114 83:1417 84:1832 85:3391 86:1042 87:2152 88:1282 89:4323 90:776 91:8316 92:2793 93:2880 94:4051 95:4299 96:1442 97:312 98:998 99:640 100:70 101:1402 102:3720 103:32141 104:4759 105:758 106:990 107:2612 108:1196 109:4090 110:2227 111:3354 112:2042 113:1808 114:1966 115:2175 116:2031 117:2738 118:2887 119:1940 120:1870 121:1363 122:2743 123:2162 124:1610 125:2857 126:91 128:1555 129:955 130:1262 131:1881 132:774 133:451 134:1523 135:332 136:1306 137:1107 138:2887 139:1611 140:1554 141:1481 142:1837 143:1637 144:1074 145:515 146:2156 147:2106 148:2652 149:2900 150:1244 151:1741 152:2096 153:502 154:7879 155:1631 156:3191 157:1889 158:1270 159:2427 160:3538 161:1892 162:3713 163:1996 164:1695 165:2202 166:1443 167:1873 168:4034 169:785 170:5073 171:1002 172:4464 173:3227 174:909 175:1292 176:3679 177:4672 178:3787 179:2314 180:2574 181:4053 182:3369 183:2040 184:2136 185:21497 186:5074 187:4397 188:4193 189:4171 190:9628 191:1459 192:11173 193:9402 194:7778 195:5509 196:3287 197:3698 198:6052 199:8443 200:8051 201:6288 202:10315 203:10509 204:4525 205:3625 206:4573 207:3440 208:4194 209:5148 210:4500 211:2533 212:4495 213:3750 214:1049 215:48 216:6602 217:3094 218:1330 219:377 220:2085 221:1067 222:713 223:2314 End of report