IPv4 R&E Routing Table Report 23:00 GMT Fri 15 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: 1045593 Prefixes after maximum aggregation (per Origin AS): 401331 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 517304 Number of IPv4 prefixes with a valid ROA: 646690 Number of IPv4 prefixes with an invalid ROA: 508 Number of IPv4 prefixes with no ROA: 398395 Total ASes present in the Internet Routing Table: 78378 Prefixes per ASN: 13.34 Origin-only ASes present in the Internet Routing Table: 67178 Origin ASes announcing only one prefix: 27367 Transit ASes present in the Internet Routing Table: 11200 Transit-only ASes present in the Internet Routing Table: 599 Paths with bogon ASNs present in the IPv4 Routing Table: 49 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: 1172 Number of instances of unregistered ASNs: 1202 Number of 32-bit ASNs allocated by the RIRs: 49765 Number of 32-bit ASNs visible in the Routing Table: 40576 Prefixes from 32-bit ASNs in the Routing Table: 230332 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: 445 Number of addresses announced to Internet: 3103016960 Equivalent to 184 /8s, 244 /16s and 72 /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: 342282 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 285446 Total APNIC prefixes after maximum aggregation: 82941 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 271924 Unique aggregates announced from the APNIC address blocks: 107941 APNIC Region origin ASes present in the Internet Routing Table: 15164 APNIC Prefixes per ASN: 17.93 APNIC Region origin ASes announcing only one prefix: 4592 APNIC Region transit ASes present in the Internet Routing Table: 2044 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: 747411456 Equivalent to 44 /8s, 140 /16s and 152 /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: 302006 Total ARIN prefixes after maximum aggregation: 136453 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 301435 Unique aggregates announced from the ARIN address blocks: 147704 ARIN Region origin ASes present in the Internet Routing Table: 19392 ARIN Prefixes per ASN: 15.54 ARIN Region origin ASes announcing only one prefix: 7110 ARIN Region transit ASes present in the Internet Routing Table: 1888 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: 5576 Number of ARIN addresses announced to Internet: 1347521536 Equivalent to 80 /8s, 81 /16s and 140 /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: 290084 Total RIPE prefixes after maximum aggregation: 143463 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 293265 Unique aggregates announced from the RIPE address blocks: 191478 RIPE Region origin ASes present in the Internet Routing Table: 29462 RIPE Prefixes per ASN: 9.95 RIPE Region origin ASes announcing only one prefix: 12212 RIPE Region transit ASes present in the Internet Routing Table: 4091 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: 13394 Number of RIPE addresses announced to Internet: 734030848 Equivalent to 43 /8s, 192 /16s and 108 /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: 129796 Total LACNIC prefixes after maximum aggregation: 30787 LACNIC Deaggregation factor: 4.22 Prefixes being announced from the LACNIC address blocks: 124212 Unique aggregates announced from the LACNIC address blocks: 50330 LACNIC Region origin ASes present in the Internet Routing Table: 11394 LACNIC Prefixes per ASN: 10.90 LACNIC Region origin ASes announcing only one prefix: 2723 LACNIC Region transit ASes present in the Internet Routing Table: 2592 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 104 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9448 Number of LACNIC addresses announced to Internet: 169683456 Equivalent to 10 /8s, 29 /16s and 42 /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: 37089 Total AfriNIC prefixes after maximum aggregation: 7004 AfriNIC Deaggregation factor: 5.30 Prefixes being announced from the AfriNIC address blocks: 54312 Unique aggregates announced from the AfriNIC address blocks: 19473 AfriNIC Region origin ASes present in the Internet Routing Table: 2025 AfriNIC Prefixes per ASN: 26.82 AfriNIC Region origin ASes announcing only one prefix: 730 AfriNIC Region transit ASes present in the Internet Routing Table: 384 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1391 Number of AfriNIC addresses announced to Internet: 104170240 Equivalent to 6 /8s, 53 /16s and 131 /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 13895 8761 121 CHINAMOBILE-CN China Mobile Communication 7545 5884 826 482 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4936 552 329 BBIL-AP BHARTI Airtel Ltd., IN 18403 4566 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4066 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3721 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3543 887 177 CMNET-JIANGSU-AP China Mobile communicati 17561 3430 216 595 LCS-AS-AP LARUS Limited, HK 45899 3373 1868 100 VNPT-AS-VN VNPT Corp, VN 24560 2737 744 736 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 14941 41321 5698 AMAZON-02 - Amazon.com, Inc., US 22773 4795 3116 367 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4592 305 1088 CABLEONE - CABLE ONE, INC., US 7155 3870 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3717 1305 75 SHAW - Shaw Communications, CA 396982 3343 4865 507 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3139 54728 2390 DNIC-AS-00749 - United States Department 36352 2912 222 913 AS-COLOCROSSING - HostPapa, US 7029 2637 2558 894 WINDSTREAM - Windstream Communications LL 30036 2603 359 479 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 7128 1711 149 UNI2-AS, ES 39891 4975 307 72 ALJAWWALSTC-AS, SA 9009 3912 359 2316 M247, RO 20940 3797 3389 109 AKAMAI-ASN1, NL 12389 3137 2321 868 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2794 205 2065 CDNEXT, GB 34984 2492 367 583 TELLCOM-AS, TR 8452 1690 1852 14 TE-AS TE-AS, EG 203020 1653 252 830 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 12745 3254 632 UNINET, MX 10620 3434 450 1103 Telmex Colombia S.A., CO 13999 2363 498 346 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 1367 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1226 371 22 INTEGRATEL PERU S.A.A., PE 26615 1073 2392 100 TIM SA, BR 22884 1072 70 361 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 1860 1532 340 ETISALAT-MISR, EG 24835 1807 649 36 RAYA-AS, EG 24863 1271 389 16 LINKdotNET-AS, EG 36935 1262 523 45 Vodafone-, EG 36903 1231 555 97 MT-MPLS, MA 37069 1117 1100 11 MOBINIL, EG 29571 1077 70 18 ORANGE-COTE-IVOIRE, CI 328608 605 56 162 Africa-on-Cloud-AS, ZA 20011 589 155 220 NTT-DATA-Inc, ZA 15399 553 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 14941 41321 5698 AMAZON-02 - Amazon.com, Inc., US 9808 13895 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12745 3254 632 UNINET, MX 12479 7128 1711 149 UNI2-AS, ES 7545 5884 826 482 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 307 72 ALJAWWALSTC-AS, SA 9498 4936 552 329 BBIL-AP BHARTI Airtel Ltd., IN 22773 4795 3116 367 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4592 305 1088 CABLEONE - CABLE ONE, INC., US 18403 4566 347 25 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 13895 13774 CHINAMOBILE-CN China Mobile Communications Grou 8151 12745 12113 UNINET, MX 12479 7128 6979 UNI2-AS, ES 7545 5884 5402 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 4903 ALJAWWALSTC-AS, SA 9498 4936 4607 BBIL-AP BHARTI Airtel Ltd., IN 18403 4566 4541 FPT-AS-AP FPT Telecom Company, VN 22773 4795 4428 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4066 4038 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 46198 UNALLOCATED 8.10.6.0/24 23520 LIBERTY-NETWORKS - Colu 46198 UNALLOCATED 8.10.7.0/24 23520 LIBERTY-NETWORKS - Colu 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 400273 UNALLOCATED 8.41.137.0/24 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 Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.100.0/24 Origin: 401541 OSIE - Osie, ZZ 23.131.100.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure 23.131.156.0/24 Origin: 401541 OSIE - Osie, ZZ 23.131.156.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure 23.131.212.0/24 Origin: 401541 OSIE - Osie, ZZ 23.131.212.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure 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: 5511 OPENTRANSIT, FR 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 /13:580 /14:1184 /15:2099 /16:13567 /17:8233 /18:13268 /19:25397 /20:45669 /21:52294 /22:113246 /23:108128 /24:661467 /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 6964 12745 UNINET, MX 12479 6065 7128 UNI2-AS, ES 39891 3660 4975 ALJAWWALSTC-AS, SA 6327 3498 3717 SHAW - Shaw Communications, CA 11492 3468 4592 CABLEONE - CABLE ONE, INC., US 22773 3063 4795 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2825 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2709 14941 AMAZON-02 - Amazon.com, Inc., US 30036 2257 2603 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2238 3434 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) ---------------------------------------------- 1:2511 2:2050 3:1004 4:5 5:5195 6:201 7:6 8:1470 9:59 11:172 12:1147 13:691 14:2702 15:466 16:209 17:443 18:913 20:591 21:4 22:188 23:8324 24:2773 25:2 27:2806 28:1 29:19 31:3567 32:36 34:89 35:283 36:4798 37:4435 38:9676 39:1298 40:442 41:4546 42:2185 43:3199 44:454 45:19894 46:4864 47:436 48:129 49:2348 50:2008 51:732 52:1327 54:288 55:1109 56:11 57:321 58:2362 59:1380 60:1175 61:3183 62:3106 63:1685 64:6389 65:2154 66:6117 67:3267 68:1510 69:4225 70:1061 71:607 72:3190 74:3045 75:1501 76:598 77:2950 78:2046 79:1792 80:2340 81:2247 82:4149 83:1454 84:2153 85:3836 86:1095 87:2490 88:1337 89:4776 90:796 91:8448 92:2784 93:3030 94:4401 95:4732 96:1444 97:308 98:947 99:834 100:70 101:1624 102:4576 103:33009 104:5390 105:850 106:900 107:2948 108:1268 109:4262 110:2291 111:4125 112:3180 113:1993 114:2383 115:2303 116:2109 117:3489 118:3042 119:2068 120:2729 121:1542 122:2997 123:2285 124:1707 125:3032 126:158 128:1564 129:969 130:1657 131:2488 132:884 133:486 134:1718 135:616 136:1478 137:1361 138:3392 139:1623 140:1771 141:1750 142:2572 143:2050 144:1785 145:638 146:2182 147:2242 148:2793 149:3153 150:1374 151:2915 152:2564 153:1606 154:9528 155:2295 156:4993 157:2401 158:1577 159:2873 160:3841 161:1973 162:4078 163:2587 164:2458 165:2681 166:1282 167:2318 168:4024 169:865 170:5605 171:1139 172:4777 173:3466 174:883 175:1367 176:3956 177:5052 178:4394 179:2394 180:3194 181:4563 182:4040 183:2835 184:2019 185:21875 186:6172 187:5057 188:4521 189:4534 190:9901 191:1997 192:11489 193:9633 194:7887 195:5815 196:3378 197:3330 198:6124 199:6047 200:8119 201:6402 202:10672 203:10636 204:4766 205:3687 206:4377 207:3837 208:4359 209:5422 210:4738 211:2689 212:5062 213:4115 214:1042 215:47 216:7294 217:3600 218:1708 219:415 220:2188 221:1347 222:940 223:3455 End of report