IPv4 R&E Routing Table Report 23:05 GMT Fri 04 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: 985800 Prefixes after maximum aggregation (per Origin AS): 381682 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 485665 Number of IPv4 prefixes with a valid ROA: 552933 Number of IPv4 prefixes with an invalid ROA: 748 Number of IPv4 prefixes with no ROA: 432119 Total ASes present in the Internet Routing Table: 76835 Prefixes per ASN: 12.83 Origin-only ASes present in the Internet Routing Table: 65842 Origin ASes announcing only one prefix: 26873 Transit ASes present in the Internet Routing Table: 10993 Transit-only ASes present in the Internet Routing Table: 537 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: 79 Max AS path prepend of ASN ( 37447) 75 Prefixes from unregistered ASNs in the Routing Table: 1148 Number of instances of unregistered ASNs: 1186 Number of 32-bit ASNs allocated by the RIRs: 46755 Number of 32-bit ASNs visible in the Routing Table: 38443 Prefixes from 32-bit ASNs in the Routing Table: 205161 Number of bogon 32-bit ASNs visible in the Routing Table: 92 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 432 Number of addresses announced to Internet: 3105452544 Equivalent to 185 /8s, 25 /16s and 114 /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: 321759 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 260757 Total APNIC prefixes after maximum aggregation: 77367 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 251684 Unique aggregates announced from the APNIC address blocks: 104583 APNIC Region origin ASes present in the Internet Routing Table: 14637 APNIC Prefixes per ASN: 17.20 APNIC Region origin ASes announcing only one prefix: 4439 APNIC Region transit ASes present in the Internet Routing Table: 1966 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10187 Number of APNIC addresses announced to Internet: 748763904 Equivalent to 44 /8s, 161 /16s and 59 /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: 289143 Total ARIN prefixes after maximum aggregation: 131523 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 290539 Unique aggregates announced from the ARIN address blocks: 140538 ARIN Region origin ASes present in the Internet Routing Table: 19196 ARIN Prefixes per ASN: 15.14 ARIN Region origin ASes announcing only one prefix: 7034 ARIN Region transit ASes present in the Internet Routing Table: 1920 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: 5230 Number of ARIN addresses announced to Internet: 1349029376 Equivalent to 80 /8s, 104 /16s and 142 /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: 275496 Total RIPE prefixes after maximum aggregation: 135581 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 274462 Unique aggregates announced from the RIPE address blocks: 176958 RIPE Region origin ASes present in the Internet Routing Table: 28909 RIPE Prefixes per ASN: 9.49 RIPE Region origin ASes announcing only one prefix: 12033 RIPE Region transit ASes present in the Internet Routing Table: 3998 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: 12511 Number of RIPE addresses announced to Internet: 731284736 Equivalent to 43 /8s, 150 /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: 124006 Total LACNIC prefixes after maximum aggregation: 29791 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 120435 Unique aggregates announced from the LACNIC address blocks: 49065 LACNIC Region origin ASes present in the Internet Routing Table: 11276 LACNIC Prefixes per ASN: 10.68 LACNIC Region origin ASes announcing only one prefix: 2675 LACNIC Region transit ASes present in the Internet Routing Table: 2530 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: 9228 Number of LACNIC addresses announced to Internet: 171190528 Equivalent to 10 /8s, 52 /16s and 41 /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: 35250 Total AfriNIC prefixes after maximum aggregation: 6678 AfriNIC Deaggregation factor: 5.28 Prefixes being announced from the AfriNIC address blocks: 48248 Unique aggregates announced from the AfriNIC address blocks: 14133 AfriNIC Region origin ASes present in the Internet Routing Table: 1922 AfriNIC Prefixes per ASN: 25.10 AfriNIC Region origin ASes announcing only one prefix: 692 AfriNIC Region transit ASes present in the Internet Routing Table: 377 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 79 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1287 Number of AfriNIC addresses announced to Internet: 104937216 Equivalent to 6 /8s, 65 /16s and 55 /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 4433 535 313 BBIL-AP BHARTI Airtel Ltd., IN 18403 4378 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 3288 1869 103 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 13574 40949 5223 AMAZON-02, US 11492 4781 317 604 CABLEONE, US 7155 3857 286 85 VIASAT-SP-BACKBONE, US 6327 3637 1320 82 SHAW, CA 174 3509 8766 856 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 2837 215 1726 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 1571 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 12268 3259 576 UNINET, MX 10620 3509 481 1020 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 1022 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 1618 389 16 LINKdotNET-AS, EG 29571 1607 102 33 ORANGE-COTE-IVOIRE, CI 36992 1424 1481 287 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 37069 1108 1100 18 MOBINIL, EG 36935 1061 520 44 Vodafone-, EG 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36914 555 82 3 KENET-AS, KE 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 13574 40949 5223 AMAZON-02, US 8151 12268 3259 576 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 4433 535 313 BBIL-AP BHARTI Airtel Ltd., IN 18403 4378 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 12268 11692 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 4378 4352 FPT-AS-AP FPT Telecom Company, VN 11492 4781 4177 CABLEONE, US 9498 4433 4120 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 /11:91 /12:297 /13:580 /14:1200 /15:2129 /16:13745 /17:8168 /18:13426 /19:24397 /20:43867 /21:51569 /22:111693 /23:102339 /24:612228 /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 6474 12268 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 2343 13574 AMAZON-02, US 30036 2263 2604 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2196 3509 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 3:830 4:10 5:4777 6:162 7:6 8:1573 9:1 11:172 12:1341 13:447 14:2544 15:363 16:285 17:383 18:892 20:555 21:4 22:188 23:7650 24:2671 25:2 27:2774 29:19 31:3317 32:35 33:1 34:83 35:255 36:3282 37:4578 38:9391 39:907 40:229 41:4284 42:1886 43:2693 44:372 45:18690 46:5118 47:326 49:1885 50:1887 51:590 52:1554 54:321 55:1103 56:11 57:269 58:2209 59:1272 60:1173 61:2825 62:2911 63:1792 64:5506 65:2175 66:4670 67:3076 68:1085 69:3856 70:1050 71:617 72:2851 74:2771 75:1504 76:607 77:2776 78:1886 79:1732 80:2199 81:2073 82:3170 83:1464 84:1864 85:3458 86:1086 87:2128 88:1309 89:4401 90:776 91:8390 92:2747 93:2938 94:4053 95:4374 96:1444 97:311 98:958 99:692 100:72 101:1419 102:3855 103:32846 104:5219 105:759 106:977 107:2640 108:1255 109:4140 110:2247 111:3241 112:2181 113:1850 114:1964 115:2183 116:2080 117:2552 118:2976 119:1922 120:2099 121:1320 122:2785 123:2211 124:1658 125:2897 126:91 128:1573 129:954 130:1280 131:2033 132:769 133:450 134:1561 135:349 136:1382 137:1121 138:2808 139:1587 140:1625 141:1508 142:1893 143:1957 144:1176 145:555 146:2167 147:2105 148:2711 149:2933 150:1281 151:2183 152:2081 153:524 154:7705 155:1774 156:3159 157:1936 158:1337 159:2501 160:3617 161:1853 162:3860 163:2212 164:1867 165:2043 166:1503 167:1999 168:3959 169:773 170:5122 171:1005 172:4429 173:3359 174:919 175:1321 176:3712 177:4722 178:3907 179:2313 180:2728 181:4096 182:3488 183:2222 184:2068 185:21609 186:5188 187:4584 188:4265 189:4319 190:9573 191:1458 192:11281 193:9472 194:7763 195:5561 196:3302 197:3234 198:6052 199:8553 200:8074 201:6386 202:10362 203:10631 204:4569 205:3604 206:4417 207:3503 208:4253 209:5095 210:4558 211:2551 212:4579 213:3803 214:1014 215:46 216:6753 217:3193 218:1360 219:393 220:2143 221:1151 222:713 223:2554 End of report