IPv4 R&E Routing Table Report 23:05 GMT Sat 05 Jul, 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: 985794 Prefixes after maximum aggregation (per Origin AS): 381735 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 485636 Number of IPv4 prefixes with a valid ROA: 552812 Number of IPv4 prefixes with an invalid ROA: 753 Number of IPv4 prefixes with no ROA: 432229 Total ASes present in the Internet Routing Table: 76831 Prefixes per ASN: 12.83 Origin-only ASes present in the Internet Routing Table: 65840 Origin ASes announcing only one prefix: 26868 Transit ASes present in the Internet Routing Table: 10991 Transit-only ASes present in the Internet Routing Table: 540 Paths with bogon ASNs present in the IPv4 Routing Table: 33 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 79 Max AS path prepend of ASN ( 37447) 75 Prefixes from unregistered ASNs in the Routing Table: 1140 Number of instances of unregistered ASNs: 1179 Number of 32-bit ASNs allocated by the RIRs: 46774 Number of 32-bit ASNs visible in the Routing Table: 38438 Prefixes from 32-bit ASNs in the Routing Table: 205176 Number of bogon 32-bit ASNs visible in the Routing Table: 94 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 442 Number of addresses announced to Internet: 3105487616 Equivalent to 185 /8s, 25 /16s and 251 /24s Percentage of available address space announced: 83.9 Percentage of allocated address space announced: 83.9 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: 321788 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 260741 Total APNIC prefixes after maximum aggregation: 77377 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 251654 Unique aggregates announced from the APNIC address blocks: 104584 APNIC Region origin ASes present in the Internet Routing Table: 14638 APNIC Prefixes per ASN: 17.19 APNIC Region origin ASes announcing only one prefix: 4437 APNIC Region transit ASes present in the Internet Routing Table: 1966 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 40 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10189 Number of APNIC addresses announced to Internet: 748632064 Equivalent to 44 /8s, 159 /16s and 56 /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: 289169 Total ARIN prefixes after maximum aggregation: 131555 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 290572 Unique aggregates announced from the ARIN address blocks: 140561 ARIN Region origin ASes present in the Internet Routing Table: 19194 ARIN Prefixes per ASN: 15.14 ARIN Region origin ASes announcing only one prefix: 7032 ARIN Region transit ASes present in the Internet Routing Table: 1918 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: 5228 Number of ARIN addresses announced to Internet: 1349076224 Equivalent to 80 /8s, 105 /16s and 69 /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: 275430 Total RIPE prefixes after maximum aggregation: 135606 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 274371 Unique aggregates announced from the RIPE address blocks: 176968 RIPE Region origin ASes present in the Internet Routing Table: 28908 RIPE Prefixes per ASN: 9.49 RIPE Region origin ASes announcing only one prefix: 12036 RIPE Region transit ASes present in the Internet Routing Table: 4002 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: 12510 Number of RIPE addresses announced to Internet: 731262976 Equivalent to 43 /8s, 150 /16s and 48 /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: 123960 Total LACNIC prefixes after maximum aggregation: 29789 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 120396 Unique aggregates announced from the LACNIC address blocks: 49055 LACNIC Region origin ASes present in the Internet Routing Table: 11277 LACNIC Prefixes per ASN: 10.68 LACNIC Region origin ASes announcing only one prefix: 2674 LACNIC Region transit ASes present in the Internet Routing Table: 2526 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 71 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9229 Number of LACNIC addresses announced to Internet: 171189504 Equivalent to 10 /8s, 52 /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: 35354 Total AfriNIC prefixes after maximum aggregation: 6670 AfriNIC Deaggregation factor: 5.30 Prefixes being announced from the AfriNIC address blocks: 48359 Unique aggregates announced from the AfriNIC address blocks: 14070 AfriNIC Region origin ASes present in the Internet Routing Table: 1917 AfriNIC Prefixes per ASN: 25.23 AfriNIC Region origin ASes announcing only one prefix: 689 AfriNIC Region transit ASes present in the Internet Routing Table: 374 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 79 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1282 Number of AfriNIC addresses announced to Internet: 105077504 Equivalent to 6 /8s, 67 /16s and 91 /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 11563 8759 114 CHINAMOBILE-CN China Mobile Communication 7545 6146 840 622 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4435 535 313 BBIL-AP BHARTI Airtel Ltd., IN 18403 4382 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 3921 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3697 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3287 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2899 862 526 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2429 812 179 CMNET-JIANGSU-AP China Mobile communicati 4755 2184 434 193 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 13565 40946 5216 AMAZON-02, US 11492 4781 317 604 CABLEONE, US 7155 3857 286 85 VIASAT-SP-BACKBONE, US 6327 3637 1320 82 SHAW, CA 174 3511 8767 859 COGENT-174, US 22773 3340 3032 167 ASN-CXA-ALL-CCI-22773-RDC, US 749 3226 54767 2477 DNIC-AS-00749, US 396982 3193 3854 430 GOOGLE-CLOUD-PLATFORM, US 16625 2958 1242 2206 AKAMAI-AS, US 4155 2835 215 1725 USDA-1, 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 7655 1713 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3938 3395 123 AKAMAI-ASN1, NL 9009 3773 350 2104 M247, RO 12389 3118 2305 882 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2403 361 583 TELLCOM-AS, TR 212238 2357 169 1725 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1563 1852 14 TE-AS TE-AS, EG 8551 1431 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 12275 3259 573 UNINET, MX 10620 3508 481 1019 Telmex Colombia S.A., CO 13999 2538 538 356 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1368 2435 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1344 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1194 371 22 Telefonica del Peru S.A.A., PE 22884 1061 67 370 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 11664 1046 278 33 Techtel LMDS Comunicaciones Interactivas 6503 1023 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 1823 660 28 RAYA-AS, EG 24863 1621 389 17 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 1075 1100 18 MOBINIL, EG 36935 1055 520 44 Vodafone-, EG 36914 576 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 15399 534 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 13565 40946 5216 AMAZON-02, US 8151 12275 3259 573 UNINET, MX 9808 11563 8759 114 CHINAMOBILE-CN China Mobile Communication 12479 7655 1713 148 UNI2-AS, ES 7545 6146 840 622 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4781 317 604 CABLEONE, US 9498 4435 535 313 BBIL-AP BHARTI Airtel Ltd., IN 18403 4382 347 26 FPT-AS-AP FPT Telecom Company, VN 20940 3938 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 12275 11702 UNINET, MX 9808 11563 11449 CHINAMOBILE-CN China Mobile Communications Grou 12479 7655 7507 UNI2-AS, ES 7545 6146 5524 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4382 4356 FPT-AS-AP FPT Telecom Company, VN 11492 4781 4177 CABLEONE, US 9498 4435 4122 BBIL-AP BHARTI Airtel Ltd., IN 7552 3921 3894 VIETEL-AS-AP Viettel Group, VN 20940 3938 3815 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 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 395195 UNALLOCATED 8.38.115.0/24 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: 6939 HURRICANE, 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 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 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 /12:298 /13:582 /14:1200 /15:2129 /16:13744 /17:8168 /18:13424 /19:24386 /20:43801 /21:51572 /22:111709 /23:102344 /24:612274 /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 6578 7655 UNI2-AS, ES 8151 6482 12275 UNINET, MX 11492 3577 4781 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3433 3637 SHAW, CA 7155 2816 3857 VIASAT-SP-BACKBONE, US 22773 2491 3340 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2333 13565 AMAZON-02, US 30036 2263 2604 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2195 3508 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) ---------------------------------------------- 1:2394 2:1506 3:824 4:10 5:4767 6:162 7:6 8:1572 9:1 11:172 12:1345 13:451 14:2545 15:364 16:285 17:381 18:892 20:555 21:4 22:188 23:7653 24:2669 25:2 27:2774 29:19 31:3316 32:35 33:1 34:83 35:255 36:3281 37:4556 38:9404 39:907 40:232 41:4294 42:1886 43:2696 44:370 45:18699 46:5113 47:326 49:1881 50:1887 51:592 52:1554 54:321 55:1100 56:11 57:269 58:2210 59:1272 60:1173 61:2826 62:2922 63:1792 64:5509 65:2176 66:4668 67:3077 68:1085 69:3857 70:1050 71:617 72:2850 74:2770 75:1504 76:607 77:2777 78:1886 79:1729 80:2199 81:2072 82:3170 83:1450 84:1865 85:3457 86:1084 87:2128 88:1309 89:4403 90:776 91:8394 92:2747 93:2932 94:4031 95:4378 96:1444 97:311 98:958 99:692 100:72 101:1420 102:3890 103:32830 104:5221 105:822 106:977 107:2639 108:1252 109:4142 110:2247 111:3241 112:2181 113:1852 114:1963 115:2181 116:2080 117:2553 118:2975 119:1920 120:2099 121:1320 122:2786 123:2208 124:1660 125:2899 126:91 128:1574 129:954 130:1281 131:2032 132:770 133:450 134:1564 135:349 136:1383 137:1121 138:2804 139:1586 140:1625 141:1507 142:1896 143:1956 144:1176 145:555 146:2167 147:2101 148:2709 149:2934 150:1277 151:2187 152:2081 153:524 154:7717 155:1774 156:3163 157:1934 158:1339 159:2501 160:3615 161:1853 162:3863 163:2216 164:1862 165:2044 166:1506 167:1999 168:3959 169:774 170:5117 171:1005 172:4427 173:3358 174:919 175:1319 176:3711 177:4701 178:3907 179:2314 180:2728 181:4086 182:3488 183:2226 184:2068 185:21593 186:5186 187:4606 188:4270 189:4328 190:9560 191:1458 192:11272 193:9470 194:7768 195:5557 196:3302 197:3261 198:6053 199:8551 200:8070 201:6387 202:10353 203:10634 204:4563 205:3613 206:4423 207:3504 208:4253 209:5095 210:4557 211:2549 212:4577 213:3800 214:1014 215:46 216:6753 217:3193 218:1360 219:396 220:2139 221:1151 222:713 223:2552 End of report