IPv4 R&E Routing Table Report 23:00 GMT Mon 11 May, 2026 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: 1044163 Prefixes after maximum aggregation (per Origin AS): 401109 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 516997 Number of IPv4 prefixes with a valid ROA: 642778 Number of IPv4 prefixes with an invalid ROA: 531 Number of IPv4 prefixes with no ROA: 400854 Total ASes present in the Internet Routing Table: 78374 Prefixes per ASN: 13.32 Origin-only ASes present in the Internet Routing Table: 67176 Origin ASes announcing only one prefix: 27378 Transit ASes present in the Internet Routing Table: 11198 Transit-only ASes present in the Internet Routing Table: 595 Paths with bogon ASNs present in the IPv4 Routing Table: 40 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 216 Max AS path prepend of ASN (205624) 211 Prefixes from unregistered ASNs in the Routing Table: 1007 Number of instances of unregistered ASNs: 1037 Number of 32-bit ASNs allocated by the RIRs: 49723 Number of 32-bit ASNs visible in the Routing Table: 40563 Prefixes from 32-bit ASNs in the Routing Table: 229910 Number of bogon 32-bit ASNs visible in the Routing Table: 78 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 423 Number of addresses announced to Internet: 3103266816 Equivalent to 184 /8s, 248 /16s and 24 /24s Percentage of available address space announced: 83.8 Percentage of allocated address space announced: 83.8 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: 341305 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 285352 Total APNIC prefixes after maximum aggregation: 82894 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 271613 Unique aggregates announced from the APNIC address blocks: 107898 APNIC Region origin ASes present in the Internet Routing Table: 15164 APNIC Prefixes per ASN: 17.91 APNIC Region origin ASes announcing only one prefix: 4589 APNIC Region transit ASes present in the Internet Routing Table: 2049 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10767 Number of APNIC addresses announced to Internet: 747639296 Equivalent to 44 /8s, 144 /16s and 18 /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: 301884 Total ARIN prefixes after maximum aggregation: 136396 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 301236 Unique aggregates announced from the ARIN address blocks: 147606 ARIN Region origin ASes present in the Internet Routing Table: 19405 ARIN Prefixes per ASN: 15.52 ARIN Region origin ASes announcing only one prefix: 7121 ARIN Region transit ASes present in the Internet Routing Table: 1892 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 216 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5570 Number of ARIN addresses announced to Internet: 1347709440 Equivalent to 80 /8s, 84 /16s and 106 /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, 393216-404380 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: 290082 Total RIPE prefixes after maximum aggregation: 143374 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 293262 Unique aggregates announced from the RIPE address blocks: 191372 RIPE Region origin ASes present in the Internet Routing Table: 29460 RIPE Prefixes per ASN: 9.95 RIPE Region origin ASes announcing only one prefix: 12211 RIPE Region transit ASes present in the Internet Routing Table: 4085 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 44 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13393 Number of RIPE addresses announced to Internet: 733670912 Equivalent to 43 /8s, 186 /16s and 238 /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: 128808 Total LACNIC prefixes after maximum aggregation: 30852 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 123198 Unique aggregates announced from the LACNIC address blocks: 50303 LACNIC Region origin ASes present in the Internet Routing Table: 11399 LACNIC Prefixes per ASN: 10.81 LACNIC Region origin ASes announcing only one prefix: 2728 LACNIC Region transit ASes present in the Internet Routing Table: 2585 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9449 Number of LACNIC addresses announced to Internet: 169766400 Equivalent to 10 /8s, 30 /16s and 110 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 37030 Total AfriNIC prefixes after maximum aggregation: 6977 AfriNIC Deaggregation factor: 5.31 Prefixes being announced from the AfriNIC address blocks: 54431 Unique aggregates announced from the AfriNIC address blocks: 19452 AfriNIC Region origin ASes present in the Internet Routing Table: 2018 AfriNIC Prefixes per ASN: 26.97 AfriNIC Region origin ASes announcing only one prefix: 729 AfriNIC Region transit ASes present in the Internet Routing Table: 384 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: 1384 Number of AfriNIC addresses announced to Internet: 104286208 Equivalent to 6 /8s, 55 /16s and 72 /24s AfriNIC AS Blocks 36864-37887, 327680-330751 & 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 13869 8761 121 CHINAMOBILE-CN China Mobile Communication 7545 5882 826 481 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4936 552 322 BBIL-AP BHARTI Airtel Ltd., IN 18403 4544 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 4054 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3719 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3535 887 177 CMNET-JIANGSU-AP China Mobile communicati 17561 3460 218 603 LCS-AS-AP LARUS Limited, HK 45899 3366 1868 100 VNPT-AS-VN VNPT Corp, VN 24560 2761 762 733 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 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 14935 41328 5703 AMAZON-02 - Amazon.com, Inc., US 22773 4788 3116 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4619 307 1076 CABLEONE - CABLE ONE, INC., US 7155 3870 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3714 1305 75 SHAW - Shaw Communications, CA 396982 3335 4865 504 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3138 54728 2389 DNIC-AS-00749 - United States Department 36352 2917 222 905 AS-COLOCROSSING - HostPapa, US 7029 2645 2559 914 WINDSTREAM - Windstream Communications LL 30036 2611 359 456 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom C 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 7187 1711 149 UNI2-AS, ES 39891 4957 305 75 ALJAWWALSTC-AS, SA 9009 3906 358 2311 M247, RO 20940 3792 3389 109 AKAMAI-ASN1, NL 12389 3143 2321 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2781 204 2052 CDNEXT, GB 34984 2492 367 583 TELLCOM-AS, TR 8452 1690 1852 14 TE-AS TE-AS, EG 203020 1655 252 831 HOSTROYALE, IN 13188 1607 100 27 TRIOLAN, UA 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 12773 3268 635 UNINET, MX 10620 3430 450 1106 Telmex Colombia S.A., CO 13999 2419 506 350 Mega Cable, S.A. de C.V., MX 11830 1937 369 65 Instituto Costarricense de Electricidad y 11664 1450 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1375 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1226 379 23 INTEGRATEL PERU S.A.A., PE 22884 1073 70 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1073 2392 100 TIM SA, BR 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 36992 1858 1532 338 ETISALAT-MISR, EG 24835 1807 649 36 RAYA-AS, EG 24863 1271 389 16 LINKdotNET-AS, EG 36935 1234 521 43 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1117 1100 11 MOBINIL, EG 29571 1070 70 18 ORANGE-COTE-IVOIRE, CI 328608 600 56 163 Africa-on-Cloud-AS, ZA 20011 589 155 220 NTT-DATA-Inc, ZA 15399 552 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 14935 41328 5703 AMAZON-02 - Amazon.com, Inc., US 9808 13869 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12773 3268 635 UNINET, MX 12479 7187 1711 149 UNI2-AS, ES 7545 5882 826 481 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4957 305 75 ALJAWWALSTC-AS, SA 9498 4936 552 322 BBIL-AP BHARTI Airtel Ltd., IN 22773 4788 3116 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4619 307 1076 CABLEONE - CABLE ONE, INC., US 18403 4544 347 26 FPT-AS-AP FPT Telecom Company, VN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13869 13748 CHINAMOBILE-CN China Mobile Communications Grou 8151 12773 12138 UNINET, MX 12479 7187 7038 UNI2-AS, ES 7545 5882 5401 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4957 4882 ALJAWWALSTC-AS, SA 9498 4936 4614 BBIL-AP BHARTI Airtel Ltd., IN 18403 4544 4518 FPT-AS-AP FPT Telecom Company, VN 22773 4788 4423 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4054 4026 VIETEL-AS-AP Viettel Group, VN 7155 3870 3780 VIASAT-SP-BACKBONE - ViaSat,Inc., US 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 395729 UNALLOCATED 8.28.58.0/24 32787 PROLEXIC-TECHNOLOGIES-D 395729 UNALLOCATED 8.28.60.0/24 32787 PROLEXIC-TECHNOLOGIES-D 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174 - Cogent Com 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4 - AT&T En Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 174 COGENT-174 - Cogent Communications, LLC, 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 174 COGENT-174 - Cogent Communications, LLC, 23.138.188.0/24 Origin: 401371 DEEP-TO-ONE-INC - Deep To One Inc, ZZ 23.138.188.0/24 Transit: 154309 INTELLIGENT1-AS-AP Intelligent Cloud Lim 23.140.216.0/24 Origin: 27176 DATAWAGON - DataWagon LLC, US 23.140.216.0/24 Transit: 20278 NEXEON - Nexeon Technologies, Inc., US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS - Charter Communicat 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 /10:39 /11:95 /12:297 /13:581 /14:1187 /15:2098 /16:13572 /17:8248 /18:13272 /19:25397 /20:45669 /21:52270 /22:113235 /23:107790 /24:660383 /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 8151 6979 12773 UNINET, MX 12479 6124 7187 UNI2-AS, ES 39891 3660 4957 ALJAWWALSTC-AS, SA 6327 3495 3714 SHAW - Shaw Communications, CA 11492 3493 4619 CABLEONE - CABLE ONE, INC., US 22773 3058 4788 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2825 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2698 14935 AMAZON-02 - Amazon.com, Inc., US 30036 2264 2611 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2234 3430 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) ---------------------------------------------- 1:2489 2:2029 3:1000 4:5 5:5177 6:200 7:6 8:1469 9:59 11:172 12:1163 13:705 14:2708 15:464 16:208 17:443 18:921 20:591 21:4 22:188 23:8311 24:2780 25:2 27:2801 28:1 29:19 31:3536 32:36 34:90 35:284 36:4757 37:4428 38:9662 39:1294 40:438 41:4564 42:2165 43:3171 44:449 45:19886 46:4885 47:438 48:129 49:2347 50:2009 51:695 52:1321 54:285 55:1024 56:11 57:321 58:2362 59:1377 60:1175 61:3182 62:3124 63:1679 64:6379 65:2150 66:6110 67:3269 68:1505 69:4220 70:1060 71:607 72:3187 74:3061 75:1501 76:600 77:2940 78:2043 79:1793 80:2351 81:2244 82:4179 83:1455 84:2149 85:3837 86:1096 87:2489 88:1335 89:4774 90:812 91:8462 92:2791 93:3033 94:4403 95:4740 96:1446 97:310 98:944 99:835 100:70 101:1626 102:4528 103:33027 104:5373 105:856 106:900 107:2944 108:1264 109:4250 110:2291 111:4132 112:3174 113:1976 114:2284 115:2302 116:2150 117:3490 118:3041 119:2058 120:2709 121:1542 122:3004 123:2288 124:1709 125:3033 126:126 128:1570 129:960 130:1643 131:2479 132:882 133:486 134:1688 135:609 136:1478 137:1360 138:3402 139:1618 140:1769 141:1747 142:2567 143:2051 144:1777 145:639 146:2184 147:2256 148:2805 149:3149 150:1377 151:2890 152:2563 153:1545 154:9670 155:2305 156:5044 157:2399 158:1579 159:2873 160:3833 161:1973 162:4065 163:2556 164:2454 165:2679 166:1277 167:2311 168:4025 169:866 170:5623 171:1140 172:4768 173:3459 174:890 175:1369 176:3947 177:4850 178:4399 179:2346 180:3186 181:4575 182:4033 183:2833 184:2005 185:21893 186:6125 187:5007 188:4565 189:4534 190:9880 191:1682 192:11487 193:9629 194:7871 195:5822 196:3357 197:3323 198:6121 199:6077 200:8132 201:6395 202:10677 203:10650 204:4753 205:3680 206:4396 207:3821 208:4349 209:5400 210:4738 211:2690 212:5085 213:4098 214:1038 215:47 216:7292 217:3607 218:1708 219:415 220:2189 221:1346 222:936 223:3446 End of report