IPv4 R&E Routing Table Report 23:05 GMT Sun 11 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: 978419 Prefixes after maximum aggregation (per Origin AS): 377831 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 479135 Number of IPv4 prefixes with a valid ROA: 541489 Number of IPv4 prefixes with an invalid ROA: 1037 Number of IPv4 prefixes with no ROA: 435893 Total ASes present in the Internet Routing Table: 76693 Prefixes per ASN: 12.76 Origin-only ASes present in the Internet Routing Table: 65790 Origin ASes announcing only one prefix: 26955 Transit ASes present in the Internet Routing Table: 10903 Transit-only ASes present in the Internet Routing Table: 535 Paths with bogon ASNs present in the IPv4 Routing Table: 24 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: 976 Number of instances of unregistered ASNs: 981 Number of 32-bit ASNs allocated by the RIRs: 46393 Number of 32-bit ASNs visible in the Routing Table: 38165 Prefixes from 32-bit ASNs in the Routing Table: 201642 Number of bogon 32-bit ASNs visible in the Routing Table: 22 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 462 Number of addresses announced to Internet: 3109379840 Equivalent to 185 /8s, 85 /16s and 95 /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: 320344 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 256938 Total APNIC prefixes after maximum aggregation: 76986 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 248088 Unique aggregates announced from the APNIC address blocks: 103139 APNIC Region origin ASes present in the Internet Routing Table: 14576 APNIC Prefixes per ASN: 17.02 APNIC Region origin ASes announcing only one prefix: 4457 APNIC Region transit ASes present in the Internet Routing Table: 1959 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10113 Number of APNIC addresses announced to Internet: 748480512 Equivalent to 44 /8s, 156 /16s and 232 /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: 288175 Total ARIN prefixes after maximum aggregation: 130190 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 289443 Unique aggregates announced from the ARIN address blocks: 138636 ARIN Region origin ASes present in the Internet Routing Table: 19196 ARIN Prefixes per ASN: 15.08 ARIN Region origin ASes announcing only one prefix: 7033 ARIN Region transit ASes present in the Internet Routing Table: 1921 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: 5185 Number of ARIN addresses announced to Internet: 1352989184 Equivalent to 80 /8s, 164 /16s and 250 /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: 273101 Total RIPE prefixes after maximum aggregation: 133847 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 270963 Unique aggregates announced from the RIPE address blocks: 174286 RIPE Region origin ASes present in the Internet Routing Table: 28903 RIPE Prefixes per ASN: 9.37 RIPE Region origin ASes announcing only one prefix: 12067 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: 12417 Number of RIPE addresses announced to Internet: 730957056 Equivalent to 43 /8s, 145 /16s and 133 /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: 123782 Total LACNIC prefixes after maximum aggregation: 29427 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 120166 Unique aggregates announced from the LACNIC address blocks: 48796 LACNIC Region origin ASes present in the Internet Routing Table: 11220 LACNIC Prefixes per ASN: 10.71 LACNIC Region origin ASes announcing only one prefix: 2702 LACNIC Region transit ASes present in the Internet Routing Table: 2490 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: 9174 Number of LACNIC addresses announced to Internet: 171713792 Equivalent to 10 /8s, 60 /16s and 37 /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: 35447 Total AfriNIC prefixes after maximum aggregation: 6769 AfriNIC Deaggregation factor: 5.24 Prefixes being announced from the AfriNIC address blocks: 49297 Unique aggregates announced from the AfriNIC address blocks: 13895 AfriNIC Region origin ASes present in the Internet Routing Table: 1908 AfriNIC Prefixes per ASN: 25.84 AfriNIC Region origin ASes announcing only one prefix: 696 AfriNIC Region transit ASes present in the Internet Routing Table: 372 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1276 Number of AfriNIC addresses announced to Internet: 105017856 Equivalent to 6 /8s, 66 /16s and 114 /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 10796 8756 96 CHINAMOBILE-CN China Mobile Communication 7545 6162 842 654 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4375 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4371 534 303 BBIL-AP BHARTI Airtel Ltd., IN 7552 3907 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3690 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3265 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2869 852 536 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 13320 40834 4842 AMAZON-02, US 11492 4726 313 592 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3622 1320 81 SHAW, CA 174 3472 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 3164 3852 416 GOOGLE-CLOUD-PLATFORM, US 16625 3022 1265 2221 AKAMAI-AS, US 36352 2789 228 853 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 7695 1714 148 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3947 3395 123 AKAMAI-ASN1, NL 9009 3791 327 1986 M247, RO 12389 3069 2303 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2362 360 584 TELLCOM-AS, TR 212238 2142 151 1577 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1599 1852 14 TE-AS TE-AS, EG 8551 1426 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 12072 3247 581 UNINET, MX 10620 3505 481 1018 Telmex Colombia S.A., CO 13999 2506 537 359 Mega Cable, S.A. de C.V., MX 11830 1995 369 64 Instituto Costarricense de Electricidad y 28573 1358 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1207 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1189 371 22 Telefonica del Peru S.A.A., PE 22884 1055 67 377 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 18 LINKdotNET-AS, EG 29571 1595 102 33 ORANGE-COTE-IVOIRE, CI 36992 1431 1518 283 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1019 521 42 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 37069 932 1099 15 MOBINIL, EG 36914 535 82 3 KENET-AS, KE 15399 534 56 54 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 13320 40834 4842 AMAZON-02, US 8151 12072 3247 581 UNINET, MX 9808 10796 8756 96 CHINAMOBILE-CN China Mobile Communication 12479 7695 1714 148 UNI2-AS, ES 7545 6162 842 654 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4726 313 592 CABLEONE, US 18403 4375 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4371 534 303 BBIL-AP BHARTI Airtel Ltd., IN 20940 3947 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 12072 11491 UNINET, MX 9808 10796 10700 CHINAMOBILE-CN China Mobile Communications Grou 12479 7695 7547 UNI2-AS, ES 7545 6162 5508 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4375 4350 FPT-AS-AP FPT Telecom Company, VN 11492 4726 4134 CABLEONE, US 9498 4371 4068 BBIL-AP BHARTI Airtel Ltd., IN 7552 3907 3881 VIETEL-AS-AP Viettel Group, VN 20940 3947 3824 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 /13:579 /14:1213 /15:2142 /16:13944 /17:8204 /18:13629 /19:24473 /20:43596 /21:51433 /22:111561 /23:101314 /24:605865 /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 6616 7695 UNI2-AS, ES 8151 6269 12072 UNINET, MX 11492 3533 4726 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 2315 13320 AMAZON-02, US 30036 2219 2559 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2191 3505 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) ---------------------------------------------- 1:2340 2:1504 3:713 4:11 5:4665 6:162 7:6 8:1586 9:1 11:172 12:1365 13:384 14:2516 15:353 16:285 17:372 18:921 20:518 21:4 22:188 23:7492 24:2744 25:2 27:2743 29:19 31:3245 32:37 33:1 34:83 35:205 36:2758 37:4633 38:9136 39:909 40:171 41:4205 42:1984 43:2569 44:378 45:18554 46:5038 47:294 49:1933 50:1888 51:591 52:1553 54:304 55:1092 56:11 57:254 58:2208 59:1303 60:1164 61:2812 62:2915 63:1805 64:5457 65:2171 66:4630 67:3056 68:1122 69:3828 70:1086 71:630 72:2846 74:2768 75:1607 76:615 77:2704 78:1872 79:1759 80:2200 81:2046 82:3124 83:1429 84:1847 85:3422 86:1047 87:2149 88:1280 89:4351 90:774 91:8340 92:2678 93:2888 94:4031 95:4290 96:1418 97:312 98:980 99:677 100:72 101:1407 102:3916 103:32221 104:5000 105:764 106:1033 107:2637 108:1212 109:4078 110:2234 111:3310 112:2058 113:1791 114:1972 115:2167 116:2045 117:2614 118:2885 119:1947 120:1886 121:1367 122:2748 123:2167 124:1610 125:2849 126:91 128:1566 129:950 130:1285 131:1949 132:779 133:451 134:1531 135:331 136:1304 137:1113 138:2879 139:1630 140:1574 141:1498 142:1899 143:1717 144:1108 145:504 146:2154 147:2092 148:2612 149:2851 150:1218 151:1851 152:2079 153:497 154:8131 155:1687 156:3453 157:1896 158:1302 159:2440 160:3572 161:1880 162:3723 163:2127 164:1694 165:2198 166:1471 167:1902 168:4034 169:781 170:5089 171:1007 172:4407 173:3259 174:908 175:1298 176:3671 177:4674 178:3620 179:2292 180:2613 181:4062 182:3424 183:2087 184:2052 185:21549 186:5142 187:4452 188:4225 189:4242 190:9607 191:1477 192:11211 193:9472 194:7756 195:5511 196:3288 197:3701 198:6069 199:8488 200:8077 201:6414 202:10229 203:10534 204:4515 205:3594 206:4458 207:3448 208:4251 209:5169 210:4569 211:2542 212:4528 213:3691 214:1030 215:48 216:6704 217:3121 218:1341 219:378 220:2086 221:1078 222:717 223:2363 End of report