IPv4 R&E Routing Table Report 23:05 GMT Fri 14 Mar, 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: 974221 Prefixes after maximum aggregation (per Origin AS): 373619 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 476257 Number of IPv4 prefixes with a valid ROA: 534893 Number of IPv4 prefixes with an invalid ROA: 1026 Number of IPv4 prefixes with no ROA: 438302 Total ASes present in the Internet Routing Table: 76542 Prefixes per ASN: 12.73 Origin-only ASes present in the Internet Routing Table: 65690 Origin ASes announcing only one prefix: 26850 Transit ASes present in the Internet Routing Table: 10852 Transit-only ASes present in the Internet Routing Table: 528 Paths with bogon ASNs present in the IPv4 Routing Table: 12 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: 1033 Number of instances of unregistered ASNs: 1037 Number of 32-bit ASNs allocated by the RIRs: 46121 Number of 32-bit ASNs visible in the Routing Table: 37928 Prefixes from 32-bit ASNs in the Routing Table: 199325 Number of bogon 32-bit ASNs visible in the Routing Table: 14 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 515 Number of addresses announced to Internet: 3110399232 Equivalent to 185 /8s, 100 /16s and 237 /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: 319547 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255226 Total APNIC prefixes after maximum aggregation: 76192 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 247032 Unique aggregates announced from the APNIC address blocks: 102660 APNIC Region origin ASes present in the Internet Routing Table: 14494 APNIC Prefixes per ASN: 17.04 APNIC Region origin ASes announcing only one prefix: 4412 APNIC Region transit ASes present in the Internet Routing Table: 1957 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10024 Number of APNIC addresses announced to Internet: 749285888 Equivalent to 44 /8s, 169 /16s and 50 /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: 287856 Total ARIN prefixes after maximum aggregation: 128203 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 288636 Unique aggregates announced from the ARIN address blocks: 136548 ARIN Region origin ASes present in the Internet Routing Table: 19175 ARIN Prefixes per ASN: 15.05 ARIN Region origin ASes announcing only one prefix: 7016 ARIN Region transit ASes present in the Internet Routing Table: 1904 Average ARIN Region AS path length visible: 4.5 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5155 Number of ARIN addresses announced to Internet: 1352331264 Equivalent to 80 /8s, 154 /16s and 240 /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: 271913 Total RIPE prefixes after maximum aggregation: 132556 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270045 Unique aggregates announced from the RIPE address blocks: 173307 RIPE Region origin ASes present in the Internet Routing Table: 28860 RIPE Prefixes per ASN: 9.36 RIPE Region origin ASes announcing only one prefix: 12071 RIPE Region transit ASes present in the Internet Routing Table: 3969 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12317 Number of RIPE addresses announced to Internet: 732208640 Equivalent to 43 /8s, 164 /16s and 158 /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: 123065 Total LACNIC prefixes after maximum aggregation: 29242 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 119862 Unique aggregates announced from the LACNIC address blocks: 48811 LACNIC Region origin ASes present in the Internet Routing Table: 11197 LACNIC Prefixes per ASN: 10.70 LACNIC Region origin ASes announcing only one prefix: 2653 LACNIC Region transit ASes present in the Internet Routing Table: 2474 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 41 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9157 Number of LACNIC addresses announced to Internet: 171442688 Equivalent to 10 /8s, 56 /16s and 2 /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: 35128 Total AfriNIC prefixes after maximum aggregation: 6790 AfriNIC Deaggregation factor: 5.17 Prefixes being announced from the AfriNIC address blocks: 48131 Unique aggregates announced from the AfriNIC address blocks: 14509 AfriNIC Region origin ASes present in the Internet Routing Table: 1910 AfriNIC Prefixes per ASN: 25.20 AfriNIC Region origin ASes announcing only one prefix: 698 AfriNIC Region transit ASes present in the Internet Routing Table: 370 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: 1275 Number of AfriNIC addresses announced to Internet: 104880384 Equivalent to 6 /8s, 64 /16s and 89 /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 10323 8753 88 CHINAMOBILE-CN China Mobile Communication 7545 6213 843 659 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4377 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4257 530 276 BBIL-AP BHARTI Airtel Ltd., IN 7552 3912 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3690 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3271 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2841 847 538 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2206 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2172 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 12931 39643 3952 AMAZON-02, US 11492 4675 310 585 CABLEONE, US 7155 4174 286 83 VIASAT-SP-BACKBONE, US 174 3686 8766 951 COGENT-174, US 6327 3622 1320 81 SHAW, CA 22773 3379 3035 181 ASN-CXA-ALL-CCI-22773-RDC, US 749 3259 54879 2506 DNIC-AS-00749, US 396982 2944 3660 457 GOOGLE-CLOUD-PLATFORM, US 16625 2936 1237 2167 AKAMAI-AS, US 30036 2545 350 417 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 7753 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3889 3395 126 AKAMAI-ASN1, NL 9009 3752 321 1936 M247, RO 12389 2999 2303 889 ROSTELECOM-AS, RU 34984 2370 361 582 TELLCOM-AS, TR 212238 2041 147 1506 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1551 1852 14 TE-AS TE-AS, EG 62240 1485 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 11821 3241 583 UNINET, MX 10620 3524 487 971 Telmex Colombia S.A., CO 13999 2505 539 368 Mega Cable, S.A. de C.V., MX 11830 1993 369 64 Instituto Costarricense de Electricidad y 28573 1351 2437 265 Claro NXT Telecomunicacoes Ltda, BR 3816 1329 781 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1195 371 22 Telefonica del Peru S.A.A., PE 11664 1156 278 33 Techtel LMDS Comunicaciones Interactivas 6503 1092 359 174 Axtel, S.A.B. de C.V., MX 22884 1049 67 376 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 1619 389 16 LINKdotNET-AS, EG 29571 1576 104 71 ORANGE-COTE-IVOIRE, CI 36992 1426 1518 286 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1006 521 42 Vodafone-, EG 20011 980 183 284 INTERNET-SOLUTIONS, ZA 37069 855 1083 15 MOBINIL, EG 6713 560 1861 35 IAM-AS, MA 36914 550 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 12931 39643 3952 AMAZON-02, US 8151 11821 3241 583 UNINET, MX 9808 10323 8753 88 CHINAMOBILE-CN China Mobile Communication 12479 7753 1714 145 UNI2-AS, ES 7545 6213 843 659 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4675 310 585 CABLEONE, US 18403 4377 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4257 530 276 BBIL-AP BHARTI Airtel Ltd., IN 7155 4174 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 11821 11238 UNINET, MX 9808 10323 10235 CHINAMOBILE-CN China Mobile Communications Grou 12479 7753 7608 UNI2-AS, ES 7545 6213 5554 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4377 4352 FPT-AS-AP FPT Telecom Company, VN 7155 4174 4091 VIASAT-SP-BACKBONE, US 11492 4675 4090 CABLEONE, US 9498 4257 3981 BBIL-AP BHARTI Airtel Ltd., IN 7552 3912 3886 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 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 23.138.40.0/22 Origin: 964 IONSWITCH-NW, US 23.138.40.0/22 Transit: 20055 AS-WHOLESAIL, US 23.138.41.0/24 Origin: 964 IONSWITCH-NW, US 23.138.41.0/24 Transit: 20055 AS-WHOLESAIL, 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 /11:92 /12:304 /13:583 /14:1214 /15:2144 /16:13922 /17:8240 /18:13657 /19:24452 /20:43638 /21:51540 /22:111582 /23:100758 /24:602021 /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 6691 7753 UNI2-AS, ES 8151 6023 11821 UNINET, MX 11492 3528 4675 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 3121 4174 VIASAT-SP-BACKBONE, US 22773 2516 3379 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2341 12931 AMAZON-02, US 30036 2206 2545 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2185 3524 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) ---------------------------------------------- 1:2348 2:1502 3:594 4:10 5:4564 6:162 7:6 8:1550 9:1 11:172 12:1375 13:348 14:2508 15:349 16:279 17:362 18:921 20:462 21:4 22:188 23:7283 24:3020 25:2 27:2700 29:19 31:3199 32:36 34:82 35:203 36:2402 37:4608 38:8944 39:899 40:154 41:4245 42:1958 43:2542 44:356 45:18388 46:5005 47:288 49:1986 50:1886 51:591 52:1555 54:300 55:1072 56:9 57:243 58:2188 59:1240 60:1165 61:2821 62:2894 63:1827 64:5488 65:2164 66:4591 67:3009 68:1114 69:3947 70:1109 71:614 72:2857 74:2776 75:1654 76:612 77:2693 78:1855 79:1729 80:2189 81:2013 82:2784 83:1392 84:1807 85:3360 86:1037 87:2155 88:1277 89:4329 90:783 91:8311 92:2787 93:2891 94:3908 95:4255 96:1413 97:313 98:985 99:738 100:71 101:1390 102:3651 103:32259 104:4817 105:736 106:999 107:2598 108:1201 109:4114 110:2229 111:3323 112:2037 113:1798 114:1939 115:2118 116:2034 117:2755 118:2877 119:1945 120:1876 121:1357 122:2735 123:2165 124:1607 125:2884 126:88 128:1539 129:957 130:1260 131:1859 132:780 133:451 134:1527 135:330 136:1285 137:1108 138:2882 139:1613 140:1555 141:1471 142:1822 143:1643 144:1063 145:479 146:2151 147:2089 148:2605 149:2878 150:1244 151:2120 152:2098 153:504 154:7849 155:1623 156:3282 157:1911 158:1268 159:2425 160:3545 161:1935 162:3677 163:1881 164:1698 165:2185 166:1396 167:1880 168:4042 169:786 170:5091 171:1000 172:4424 173:3207 174:910 175:1275 176:3684 177:4751 178:3808 179:2323 180:2569 181:4032 182:3369 183:2071 184:2293 185:21474 186:5063 187:4368 188:4209 189:4175 190:9633 191:1493 192:11125 193:9406 194:7756 195:5517 196:3261 197:3755 198:6070 199:8367 200:8043 201:6302 202:10343 203:10515 204:4501 205:3572 206:4550 207:3438 208:4170 209:5146 210:4505 211:2527 212:4502 213:3720 214:1050 215:42 216:6578 217:3088 218:1326 219:375 220:2105 221:1053 222:719 223:2319 End of report