IPv4 R&E Routing Table Report 23:05 GMT Thu 12 Jun, 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: 983257 Prefixes after maximum aggregation (per Origin AS): 380244 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 482236 Number of IPv4 prefixes with a valid ROA: 547678 Number of IPv4 prefixes with an invalid ROA: 1495 Number of IPv4 prefixes with no ROA: 434084 Total ASes present in the Internet Routing Table: 76820 Prefixes per ASN: 12.80 Origin-only ASes present in the Internet Routing Table: 65833 Origin ASes announcing only one prefix: 26847 Transit ASes present in the Internet Routing Table: 10987 Transit-only ASes present in the Internet Routing Table: 554 Paths with bogon ASNs present in the IPv4 Routing Table: 32 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 73 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1164 Number of instances of unregistered ASNs: 1205 Number of 32-bit ASNs allocated by the RIRs: 46631 Number of 32-bit ASNs visible in the Routing Table: 38329 Prefixes from 32-bit ASNs in the Routing Table: 203801 Number of bogon 32-bit ASNs visible in the Routing Table: 108 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 432 Number of addresses announced to Internet: 3110011392 Equivalent to 185 /8s, 95 /16s and 2 /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: 321368 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 258922 Total APNIC prefixes after maximum aggregation: 77187 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 250293 Unique aggregates announced from the APNIC address blocks: 104271 APNIC Region origin ASes present in the Internet Routing Table: 14590 APNIC Prefixes per ASN: 17.16 APNIC Region origin ASes announcing only one prefix: 4423 APNIC Region transit ASes present in the Internet Routing Table: 1970 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10134 Number of APNIC addresses announced to Internet: 748800256 Equivalent to 44 /8s, 161 /16s and 201 /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: 289107 Total ARIN prefixes after maximum aggregation: 131207 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 290947 Unique aggregates announced from the ARIN address blocks: 139537 ARIN Region origin ASes present in the Internet Routing Table: 19199 ARIN Prefixes per ASN: 15.15 ARIN Region origin ASes announcing only one prefix: 7023 ARIN Region transit ASes present in the Internet Routing Table: 1931 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: 5224 Number of ARIN addresses announced to Internet: 1353088000 Equivalent to 80 /8s, 166 /16s and 124 /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: 274388 Total RIPE prefixes after maximum aggregation: 134740 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 273043 Unique aggregates announced from the RIPE address blocks: 175591 RIPE Region origin ASes present in the Internet Routing Table: 28928 RIPE Prefixes per ASN: 9.44 RIPE Region origin ASes announcing only one prefix: 12056 RIPE Region transit ASes present in the Internet Routing Table: 4007 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 73 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12481 Number of RIPE addresses announced to Internet: 731194880 Equivalent to 43 /8s, 149 /16s and 38 /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: 124059 Total LACNIC prefixes after maximum aggregation: 29628 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 120344 Unique aggregates announced from the LACNIC address blocks: 48912 LACNIC Region origin ASes present in the Internet Routing Table: 11257 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2655 LACNIC Region transit ASes present in the Internet Routing Table: 2509 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 71 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9207 Number of LACNIC addresses announced to Internet: 171841280 Equivalent to 10 /8s, 62 /16s and 23 /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: 35617 Total AfriNIC prefixes after maximum aggregation: 6715 AfriNIC Deaggregation factor: 5.30 Prefixes being announced from the AfriNIC address blocks: 48198 Unique aggregates announced from the AfriNIC address blocks: 13538 AfriNIC Region origin ASes present in the Internet Routing Table: 1917 AfriNIC Prefixes per ASN: 25.14 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: 1283 Number of AfriNIC addresses announced to Internet: 104881664 Equivalent to 6 /8s, 64 /16s and 94 /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 11080 8758 100 CHINAMOBILE-CN China Mobile Communication 7545 6172 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4472 347 26 FPT-AS-AP FPT Telecom Company, VN 9498 4409 534 308 BBIL-AP BHARTI Airtel Ltd., IN 7552 3922 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3712 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3257 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2887 855 532 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2180 434 193 TATACOMM-AS TATA Communications formerly 45090 2173 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 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 13688 40940 5240 AMAZON-02, US 11492 4762 316 595 CABLEONE, US 7155 3863 286 85 VIASAT-SP-BACKBONE, US 6327 3635 1320 81 SHAW, CA 174 3574 8745 881 COGENT-174, US 22773 3347 3033 169 ASN-CXA-ALL-CCI-22773-RDC, US 749 3229 54783 2480 DNIC-AS-00749, US 396982 3186 3854 427 GOOGLE-CLOUD-PLATFORM, US 16625 3005 1252 2223 AKAMAI-AS, US 36352 2817 230 857 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 7702 1714 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3945 3395 123 AKAMAI-ASN1, NL 9009 3883 353 2084 M247, RO 12389 3105 2304 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2402 361 578 TELLCOM-AS, TR 212238 2265 165 1654 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1518 1852 14 TE-AS TE-AS, EG 62240 1413 94 737 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 12193 3253 582 UNINET, MX 10620 3500 481 1018 Telmex Colombia S.A., CO 13999 2493 541 360 Mega Cable, S.A. de C.V., MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 28573 1371 2436 266 Claro NXT Telecomunicacoes Ltda, BR 3816 1340 787 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1204 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1200 371 22 Telefonica del Peru S.A.A., PE 22884 1061 67 374 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1041 373 162 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 1820 644 27 RAYA-AS, EG 24863 1633 389 16 LINKdotNET-AS, EG 29571 1607 102 33 ORANGE-COTE-IVOIRE, CI 36992 1431 1519 280 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1066 523 47 Vodafone-, EG 20011 981 185 286 INTERNET-SOLUTIONS, ZA 36914 565 82 3 KENET-AS, KE 15399 543 57 57 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 13688 40940 5240 AMAZON-02, US 8151 12193 3253 582 UNINET, MX 9808 11080 8758 100 CHINAMOBILE-CN China Mobile Communication 12479 7702 1714 148 UNI2-AS, ES 7545 6172 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4762 316 595 CABLEONE, US 18403 4472 347 26 FPT-AS-AP FPT Telecom Company, VN 9498 4409 534 308 BBIL-AP BHARTI Airtel Ltd., IN 20940 3945 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 12193 11611 UNINET, MX 9808 11080 10980 CHINAMOBILE-CN China Mobile Communications Grou 12479 7702 7554 UNI2-AS, ES 7545 6172 5523 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4472 4446 FPT-AS-AP FPT Telecom Company, VN 11492 4762 4167 CABLEONE, US 9498 4409 4101 BBIL-AP BHARTI Airtel Ltd., IN 7552 3922 3896 VIETEL-AS-AP Viettel Group, VN 20940 3945 3822 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 398728 UNALLOCATED 8.10.134.0/24 174 COGENT-174, US 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 394804 UNALLOCATED 8.33.225.0/24 3356 LEVEL3, US 54338 UNALLOCATED 8.33.241.0/24 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 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 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 /9:14 /10:41 /11:92 /12:300 /13:581 /14:1210 /15:2140 /16:13862 /17:8191 /18:13598 /19:24420 /20:43844 /21:51555 /22:111700 /23:102190 /24:609503 /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 6620 7702 UNI2-AS, ES 8151 6411 12193 UNINET, MX 11492 3559 4762 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3431 3635 SHAW, CA 7155 2822 3863 VIASAT-SP-BACKBONE, US 22773 2495 3347 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2374 13688 AMAZON-02, US 30036 2244 2585 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2187 3500 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) ---------------------------------------------- 1:2381 2:1482 3:816 4:10 5:4715 6:162 7:6 8:1573 9:1 11:172 12:1350 13:451 14:2510 15:358 16:285 17:378 18:923 20:545 21:4 22:188 23:7570 24:2827 25:2 27:2756 29:19 31:3295 32:36 33:1 34:83 35:254 36:3094 37:4384 38:9381 39:906 40:166 41:4203 42:1989 43:2635 44:377 45:18651 46:5115 47:323 49:1930 50:1891 51:592 52:1569 54:328 55:1088 56:11 57:266 58:2211 59:1286 60:1171 61:2834 62:2925 63:1794 64:5453 65:2172 66:4632 67:3042 68:1121 69:3845 70:1074 71:633 72:2843 74:2785 75:1504 76:620 77:2699 78:1882 79:1716 80:2220 81:2061 82:3152 83:1446 84:1863 85:3449 86:1078 87:2139 88:1298 89:4402 90:767 91:8395 92:2726 93:2907 94:4017 95:4341 96:1421 97:311 98:980 99:698 100:73 101:1425 102:3849 103:32703 104:5137 105:768 106:1034 107:2663 108:1236 109:4078 110:2241 111:3272 112:2128 113:1813 114:1996 115:2116 116:2073 117:2527 118:2890 119:1911 120:2004 121:1376 122:2771 123:2183 124:1630 125:2902 126:91 128:1581 129:947 130:1287 131:2009 132:768 133:449 134:1525 135:346 136:1350 137:1116 138:2835 139:1599 140:1604 141:1507 142:1898 143:1845 144:1136 145:542 146:2174 147:2105 148:2716 149:2876 150:1266 151:1969 152:2088 153:512 154:7492 155:1747 156:3007 157:1918 158:1328 159:2489 160:3607 161:1848 162:3841 163:2193 164:1857 165:1981 166:1490 167:1961 168:4012 169:792 170:5117 171:1020 172:4452 173:3325 174:920 175:1307 176:3705 177:4683 178:3682 179:2307 180:2751 181:4067 182:3443 183:2180 184:2060 185:21580 186:5183 187:4499 188:4260 189:4282 190:9612 191:1487 192:11288 193:9474 194:7811 195:5544 196:3273 197:3673 198:6066 199:8529 200:8100 201:6375 202:10269 203:10650 204:4549 205:3612 206:4454 207:3506 208:4247 209:5124 210:4562 211:2535 212:4569 213:3743 214:1028 215:48 216:6752 217:3159 218:1353 219:394 220:2089 221:1138 222:721 223:2478 End of report