IPv4 R&E Routing Table Report 23:05 GMT Sun 04 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: 977463 Prefixes after maximum aggregation (per Origin AS): 376983 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 478813 Number of IPv4 prefixes with a valid ROA: 541201 Number of IPv4 prefixes with an invalid ROA: 744 Number of IPv4 prefixes with no ROA: 435518 Total ASes present in the Internet Routing Table: 76682 Prefixes per ASN: 12.75 Origin-only ASes present in the Internet Routing Table: 65769 Origin ASes announcing only one prefix: 26941 Transit ASes present in the Internet Routing Table: 10913 Transit-only ASes present in the Internet Routing Table: 536 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: 1054 Number of instances of unregistered ASNs: 1056 Number of 32-bit ASNs allocated by the RIRs: 46334 Number of 32-bit ASNs visible in the Routing Table: 38132 Prefixes from 32-bit ASNs in the Routing Table: 201193 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: 464 Number of addresses announced to Internet: 3109654272 Equivalent to 185 /8s, 89 /16s and 143 /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: 320211 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 256345 Total APNIC prefixes after maximum aggregation: 76912 APNIC Deaggregation factor: 3.33 Prefixes being announced from the APNIC address blocks: 247455 Unique aggregates announced from the APNIC address blocks: 103107 APNIC Region origin ASes present in the Internet Routing Table: 14561 APNIC Prefixes per ASN: 16.99 APNIC Region origin ASes announcing only one prefix: 4449 APNIC Region transit ASes present in the Internet Routing Table: 1965 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: 748291840 Equivalent to 44 /8s, 154 /16s and 7 /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: 287929 Total ARIN prefixes after maximum aggregation: 129567 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 289114 Unique aggregates announced from the ARIN address blocks: 138511 ARIN Region origin ASes present in the Internet Routing Table: 19200 ARIN Prefixes per ASN: 15.06 ARIN Region origin ASes announcing only one prefix: 7037 ARIN Region transit ASes present in the Internet Routing Table: 1923 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: 5187 Number of ARIN addresses announced to Internet: 1353146368 Equivalent to 80 /8s, 167 /16s and 96 /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: 273285 Total RIPE prefixes after maximum aggregation: 133701 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 271104 Unique aggregates announced from the RIPE address blocks: 174094 RIPE Region origin ASes present in the Internet Routing Table: 28902 RIPE Prefixes per ASN: 9.38 RIPE Region origin ASes announcing only one prefix: 12074 RIPE Region transit ASes present in the Internet Routing Table: 3973 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: 12412 Number of RIPE addresses announced to Internet: 731352832 Equivalent to 43 /8s, 151 /16s and 143 /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: 123471 Total LACNIC prefixes after maximum aggregation: 29424 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 120015 Unique aggregates announced from the LACNIC address blocks: 48782 LACNIC Region origin ASes present in the Internet Routing Table: 11217 LACNIC Prefixes per ASN: 10.70 LACNIC Region origin ASes announcing only one prefix: 2691 LACNIC Region transit ASes present in the Internet Routing Table: 2483 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: 9168 Number of LACNIC addresses announced to Internet: 171662080 Equivalent to 10 /8s, 59 /16s and 91 /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: 35379 Total AfriNIC prefixes after maximum aggregation: 6752 AfriNIC Deaggregation factor: 5.24 Prefixes being announced from the AfriNIC address blocks: 49311 Unique aggregates announced from the AfriNIC address blocks: 13934 AfriNIC Region origin ASes present in the Internet Routing Table: 1905 AfriNIC Prefixes per ASN: 25.89 AfriNIC Region origin ASes announcing only one prefix: 690 AfriNIC Region transit ASes present in the Internet Routing Table: 372 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: 1271 Number of AfriNIC addresses announced to Internet: 104979200 Equivalent to 6 /8s, 65 /16s and 219 /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 6215 843 655 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4310 531 277 BBIL-AP BHARTI Airtel Ltd., IN 18403 4302 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3920 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3675 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3271 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2859 851 535 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2208 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4766 2189 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 13280 40823 4408 AMAZON-02, US 11492 4711 312 591 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 174 3652 8754 916 COGENT-174, US 6327 3622 1320 81 SHAW, CA 22773 3369 3034 169 ASN-CXA-ALL-CCI-22773-RDC, US 749 3254 54863 2505 DNIC-AS-00749, US 16625 3001 1261 2217 AKAMAI-AS, US 396982 2955 3657 469 GOOGLE-CLOUD-PLATFORM, US 36352 2772 227 850 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 7723 1714 148 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3957 3395 123 AKAMAI-ASN1, NL 9009 3789 327 1973 M247, RO 12389 3069 2303 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2362 360 584 TELLCOM-AS, TR 212238 2121 150 1563 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1602 1852 14 TE-AS TE-AS, EG 8551 1427 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 12033 3243 586 UNINET, MX 10620 3522 486 994 Telmex Colombia S.A., CO 13999 2513 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, 6147 1191 371 22 Telefonica del Peru S.A.A., PE 11664 1070 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1057 67 375 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 1594 102 22 ORANGE-COTE-IVOIRE, CI 36992 1430 1518 283 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1020 521 42 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 37069 932 1099 15 MOBINIL, EG 36914 543 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 13280 40823 4408 AMAZON-02, US 8151 12033 3243 586 UNINET, MX 9808 10452 8754 93 CHINAMOBILE-CN China Mobile Communication 12479 7723 1714 148 UNI2-AS, ES 7545 6215 843 655 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4711 312 591 CABLEONE, US 9498 4310 531 277 BBIL-AP BHARTI Airtel Ltd., IN 18403 4302 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 3957 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 12033 11447 UNINET, MX 9808 10452 10359 CHINAMOBILE-CN China Mobile Communications Grou 12479 7723 7575 UNI2-AS, ES 7545 6215 5560 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4302 4277 FPT-AS-AP FPT Telecom Company, VN 11492 4711 4120 CABLEONE, US 9498 4310 4033 BBIL-AP BHARTI Airtel Ltd., IN 7552 3920 3894 VIETEL-AS-AP Viettel Group, VN 20940 3957 3834 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 /15:2140 /16:13952 /17:8219 /18:13653 /19:24454 /20:43574 /21:51440 /22:111588 /23:101080 /24:605105 /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 6645 7723 UNI2-AS, ES 8151 6238 12033 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 2517 3369 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2339 13280 AMAZON-02, US 30036 2230 2570 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) ---------------------------------------------- 1:2333 2:1502 3:666 4:9 5:4680 6:162 7:6 8:1555 9:1 11:172 12:1365 13:364 14:2514 15:353 16:282 17:367 18:916 20:515 21:4 22:188 23:7471 24:2747 25:2 27:2735 29:19 31:3237 32:36 33:1 34:83 35:203 36:2488 37:4678 38:9063 39:907 40:167 41:4167 42:1943 43:2563 44:376 45:18533 46:5019 47:293 49:1936 50:1885 51:590 52:1552 54:302 55:1085 56:11 57:254 58:2198 59:1281 60:1169 61:2812 62:2938 63:1818 64:5458 65:2171 66:4607 67:3055 68:1133 69:3819 70:1089 71:619 72:2851 74:2767 75:1607 76:614 77:2726 78:1873 79:1753 80:2199 81:2034 82:3199 83:1435 84:1845 85:3415 86:1049 87:2147 88:1282 89:4337 90:783 91:8333 92:2723 93:2893 94:4086 95:4333 96:1414 97:312 98:995 99:671 100:72 101:1390 102:3896 103:32182 104:4807 105:752 106:1032 107:2620 108:1201 109:4076 110:2234 111:3334 112:2050 113:1798 114:1967 115:2169 116:2037 117:2736 118:2880 119:1946 120:1879 121:1367 122:2745 123:2161 124:1607 125:2850 126:91 128:1569 129:943 130:1282 131:1919 132:771 133:451 134:1537 135:331 136:1300 137:1112 138:2885 139:1620 140:1570 141:1493 142:1902 143:1684 144:1092 145:503 146:2152 147:2097 148:2682 149:2873 150:1259 151:1821 152:2095 153:497 154:8304 155:1657 156:3467 157:1891 158:1291 159:2436 160:3568 161:1902 162:3715 163:2098 164:1702 165:2197 166:1467 167:1880 168:4030 169:781 170:5067 171:1007 172:4411 173:3257 174:908 175:1295 176:3662 177:4680 178:3687 179:2273 180:2599 181:4050 182:3389 183:2061 184:2081 185:21519 186:5103 187:4430 188:4214 189:4215 190:9596 191:1472 192:11203 193:9444 194:7769 195:5510 196:3289 197:3664 198:6083 199:8477 200:8078 201:6305 202:10336 203:10537 204:4513 205:3586 206:4562 207:3432 208:4237 209:5158 210:4524 211:2534 212:4516 213:3690 214:1029 215:48 216:6690 217:3142 218:1331 219:378 220:2087 221:1054 222:723 223:2352 End of report