IPv4 R&E Routing Table Report 23:05 GMT Mon 05 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: 977079 Prefixes after maximum aggregation (per Origin AS): 377044 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 478721 Number of IPv4 prefixes with a valid ROA: 541578 Number of IPv4 prefixes with an invalid ROA: 728 Number of IPv4 prefixes with no ROA: 434773 Total ASes present in the Internet Routing Table: 76687 Prefixes per ASN: 12.74 Origin-only ASes present in the Internet Routing Table: 65782 Origin ASes announcing only one prefix: 26952 Transit ASes present in the Internet Routing Table: 10905 Transit-only ASes present in the Internet Routing Table: 539 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: 1057 Number of instances of unregistered ASNs: 1059 Number of 32-bit ASNs allocated by the RIRs: 46335 Number of 32-bit ASNs visible in the Routing Table: 38139 Prefixes from 32-bit ASNs in the Routing Table: 201083 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: 469 Number of addresses announced to Internet: 3109756160 Equivalent to 185 /8s, 91 /16s and 29 /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: 320027 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 256330 Total APNIC prefixes after maximum aggregation: 76919 APNIC Deaggregation factor: 3.33 Prefixes being announced from the APNIC address blocks: 247447 Unique aggregates announced from the APNIC address blocks: 103067 APNIC Region origin ASes present in the Internet Routing Table: 14563 APNIC Prefixes per ASN: 16.99 APNIC Region origin ASes announcing only one prefix: 4455 APNIC Region transit ASes present in the Internet Routing Table: 1963 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 45 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10094 Number of APNIC addresses announced to Internet: 748354048 Equivalent to 44 /8s, 154 /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: 287683 Total ARIN prefixes after maximum aggregation: 129681 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 288907 Unique aggregates announced from the ARIN address blocks: 138474 ARIN Region origin ASes present in the Internet Routing Table: 19199 ARIN Prefixes per ASN: 15.05 ARIN Region origin ASes announcing only one prefix: 7044 ARIN Region transit ASes present in the Internet Routing Table: 1919 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5191 Number of ARIN addresses announced to Internet: 1353133568 Equivalent to 80 /8s, 167 /16s and 46 /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: 273178 Total RIPE prefixes after maximum aggregation: 133701 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 271020 Unique aggregates announced from the RIPE address blocks: 174060 RIPE Region origin ASes present in the Internet Routing Table: 28897 RIPE Prefixes per ASN: 9.38 RIPE Region origin ASes announcing only one prefix: 12068 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: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12408 Number of RIPE addresses announced to Internet: 731310336 Equivalent to 43 /8s, 150 /16s and 233 /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: 123382 Total LACNIC prefixes after maximum aggregation: 29354 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 119897 Unique aggregates announced from the LACNIC address blocks: 48784 LACNIC Region origin ASes present in the Internet Routing Table: 11219 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2691 LACNIC Region transit ASes present in the Internet Routing Table: 2481 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: 171710464 Equivalent to 10 /8s, 60 /16s and 24 /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: 35449 Total AfriNIC prefixes after maximum aggregation: 6762 AfriNIC Deaggregation factor: 5.24 Prefixes being announced from the AfriNIC address blocks: 49339 Unique aggregates announced from the AfriNIC address blocks: 13946 AfriNIC Region origin ASes present in the Internet Routing Table: 1909 AfriNIC Prefixes per ASN: 25.85 AfriNIC Region origin ASes announcing only one prefix: 694 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: 1275 Number of AfriNIC addresses announced to Internet: 105023744 Equivalent to 6 /8s, 66 /16s and 137 /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 10452 8754 93 CHINAMOBILE-CN China Mobile Communication 7545 6216 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4301 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4282 531 277 BBIL-AP BHARTI Airtel Ltd., IN 7552 3920 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3688 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3263 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2860 851 536 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2208 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4766 2187 11523 647 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 13302 40824 4461 AMAZON-02, US 11492 4711 312 591 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3622 1320 81 SHAW, CA 174 3614 8752 912 COGENT-174, US 22773 3368 3034 169 ASN-CXA-ALL-CCI-22773-RDC, US 749 3254 54863 2505 DNIC-AS-00749, US 16625 3011 1263 2217 AKAMAI-AS, US 396982 2956 3657 470 GOOGLE-CLOUD-PLATFORM, US 36352 2776 227 854 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 7724 1714 148 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3955 3395 123 AKAMAI-ASN1, NL 9009 3787 327 1973 M247, RO 12389 3069 2303 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2362 360 584 TELLCOM-AS, TR 212238 2130 150 1572 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1601 1852 14 TE-AS TE-AS, EG 8551 1428 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 12022 3243 585 UNINET, MX 10620 3522 486 994 Telmex Colombia S.A., CO 13999 2512 540 362 Mega Cable, S.A. de C.V., MX 11830 1994 369 64 Instituto Costarricense de Electricidad y 28573 1359 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1332 784 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1197 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1192 371 22 Telefonica del Peru S.A.A., PE 22884 1055 67 381 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 1744 631 30 RAYA-AS, EG 24863 1649 389 16 LINKdotNET-AS, EG 29571 1600 103 23 ORANGE-COTE-IVOIRE, CI 36992 1430 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 535 82 3 KENET-AS, KE 15399 524 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 13302 40824 4461 AMAZON-02, US 8151 12022 3243 585 UNINET, MX 9808 10452 8754 93 CHINAMOBILE-CN China Mobile Communication 12479 7724 1714 148 UNI2-AS, ES 7545 6216 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4711 312 591 CABLEONE, US 18403 4301 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4282 531 277 BBIL-AP BHARTI Airtel Ltd., IN 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 12022 11437 UNINET, MX 9808 10452 10359 CHINAMOBILE-CN China Mobile Communications Grou 12479 7724 7576 UNI2-AS, ES 7545 6216 5560 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4301 4276 FPT-AS-AP FPT Telecom Company, VN 11492 4711 4120 CABLEONE, US 9498 4282 4005 BBIL-AP BHARTI Airtel Ltd., IN 7552 3920 3894 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 /14:1212 /15:2141 /16:13954 /17:8223 /18:13650 /19:24468 /20:43573 /21:51425 /22:111549 /23:101102 /24:604736 /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 6646 7724 UNI2-AS, ES 8151 6228 12022 UNINET, MX 11492 3531 4711 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2516 3368 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2335 13302 AMAZON-02, US 30036 2217 2557 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2188 3522 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 2:1502 3:678 4:10 5:4679 6:162 7:6 8:1552 9:1 11:172 12:1366 13:363 14:2514 15:353 16:283 17:367 18:920 20:515 21:4 22:188 23:7471 24:2746 25:2 27:2734 29:19 31:3236 32:36 33:1 34:83 35:203 36:2499 37:4690 38:9084 39:908 40:167 41:4188 42:1941 43:2561 44:375 45:18491 46:5035 47:293 49:1936 50:1882 51:590 52:1553 54:301 55:1084 56:11 57:254 58:2197 59:1256 60:1169 61:2806 62:2922 63:1818 64:5450 65:2169 66:4611 67:3054 68:1120 69:3809 70:1089 71:619 72:2850 74:2761 75:1607 76:614 77:2729 78:1872 79:1752 80:2199 81:2033 82:3198 83:1434 84:1846 85:3414 86:1050 87:2147 88:1281 89:4338 90:781 91:8334 92:2722 93:2896 94:4085 95:4327 96:1413 97:312 98:989 99:671 100:72 101:1393 102:3909 103:32169 104:4811 105:757 106:1032 107:2625 108:1201 109:4084 110:2235 111:3332 112:2050 113:1792 114:1967 115:2168 116:2038 117:2738 118:2882 119:1945 120:1880 121:1368 122:2745 123:2161 124:1614 125:2850 126:91 128:1565 129:946 130:1283 131:1920 132:769 133:451 134:1529 135:331 136:1299 137:1112 138:2881 139:1617 140:1571 141:1491 142:1902 143:1687 144:1093 145:503 146:2150 147:2098 148:2680 149:2846 150:1253 151:1827 152:2094 153:497 154:8296 155:1659 156:3399 157:1887 158:1294 159:2440 160:3567 161:1896 162:3710 163:2096 164:1704 165:2197 166:1467 167:1883 168:4024 169:782 170:5061 171:1007 172:4394 173:3253 174:906 175:1298 176:3663 177:4666 178:3627 179:2269 180:2602 181:4054 182:3390 183:2060 184:2050 185:21500 186:5101 187:4424 188:4213 189:4212 190:9602 191:1476 192:11201 193:9433 194:7769 195:5511 196:3288 197:3673 198:6080 199:8467 200:8065 201:6278 202:10338 203:10538 204:4509 205:3589 206:4565 207:3436 208:4240 209:5161 210:4526 211:2533 212:4513 213:3691 214:1026 215:48 216:6682 217:3124 218:1331 219:378 220:2087 221:1056 222:723 223:2352 End of report