IPv4 R&E Routing Table Report 23:00 GMT Mon 02 Nov, 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: 1079969 Prefixes after maximum aggregation (per Origin AS): 416276 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 539576 Number of IPv4 prefixes with a valid ROA: 767912 Number of IPv4 prefixes with an invalid ROA: 428 Number of IPv4 prefixes with no ROA: 311629 Total ASes present in the Internet Routing Table: 79613 Prefixes per ASN: 13.57 Origin-only ASes present in the Internet Routing Table: 68115 Origin ASes announcing only one prefix: 27981 Transit ASes present in the Internet Routing Table: 11498 Transit-only ASes present in the Internet Routing Table: 625 Paths with bogon ASNs present in the IPv4 Routing Table: 29 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: 1079 Number of instances of unregistered ASNs: 1101 Number of 32-bit ASNs allocated by the RIRs: 51974 Number of 32-bit ASNs visible in the Routing Table: 42117 Prefixes from 32-bit ASNs in the Routing Table: 244834 Number of bogon 32-bit ASNs visible in the Routing Table: 48 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 523 Number of addresses announced to Internet: 3126620928 Equivalent to 186 /8s, 92 /16s and 115 /24s Percentage of available address space announced: 84.5 Percentage of allocated address space announced: 84.5 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: 357620 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 293000 Total APNIC prefixes after maximum aggregation: 85609 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 278865 Unique aggregates announced from the APNIC address blocks: 110705 APNIC Region origin ASes present in the Internet Routing Table: 15433 APNIC Prefixes per ASN: 18.07 APNIC Region origin ASes announcing only one prefix: 4763 APNIC Region transit ASes present in the Internet Routing Table: 2108 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: 11071 Number of APNIC addresses announced to Internet: 749100288 Equivalent to 44 /8s, 166 /16s and 93 /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: 313123 Total ARIN prefixes after maximum aggregation: 140173 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 310354 Unique aggregates announced from the ARIN address blocks: 153270 ARIN Region origin ASes present in the Internet Routing Table: 19562 ARIN Prefixes per ASN: 15.87 ARIN Region origin ASes announcing only one prefix: 7245 ARIN Region transit ASes present in the Internet Routing Table: 1975 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: 5881 Number of ARIN addresses announced to Internet: 1355215360 Equivalent to 80 /8s, 198 /16s and 242 /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: 301503 Total RIPE prefixes after maximum aggregation: 150577 RIPE Deaggregation factor: 2.00 Prefixes being announced from the RIPE address blocks: 309734 Unique aggregates announced from the RIPE address blocks: 204311 RIPE Region origin ASes present in the Internet Routing Table: 29995 RIPE Prefixes per ASN: 10.33 RIPE Region origin ASes announcing only one prefix: 12437 RIPE Region transit ASes present in the Internet Routing Table: 4193 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 54 Number of RIPE region 32-bit ASNs visible in the Routing Table: 14072 Number of RIPE addresses announced to Internet: 751286528 Equivalent to 44 /8s, 199 /16s and 185 /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 196608-219547 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: 132435 Total LACNIC prefixes after maximum aggregation: 31990 LACNIC Deaggregation factor: 4.14 Prefixes being announced from the LACNIC address blocks: 125756 Unique aggregates announced from the LACNIC address blocks: 51794 LACNIC Region origin ASes present in the Internet Routing Table: 11544 LACNIC Prefixes per ASN: 10.89 LACNIC Region origin ASes announcing only one prefix: 2763 LACNIC Region transit ASes present in the Internet Routing Table: 2635 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 50 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9621 Number of LACNIC addresses announced to Internet: 166982656 Equivalent to 9 /8s, 243 /16s and 244 /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: 38829 Total AfriNIC prefixes after maximum aggregation: 7261 AfriNIC Deaggregation factor: 5.35 Prefixes being announced from the AfriNIC address blocks: 54737 Unique aggregates announced from the AfriNIC address blocks: 19052 AfriNIC Region origin ASes present in the Internet Routing Table: 2109 AfriNIC Prefixes per ASN: 25.95 AfriNIC Region origin ASes announcing only one prefix: 773 AfriNIC Region transit ASes present in the Internet Routing Table: 386 Average AfriNIC Region AS path length visible: 5.5 Max AfriNIC Region AS path length visible: 85 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1472 Number of AfriNIC addresses announced to Internet: 103754240 Equivalent to 6 /8s, 47 /16s and 42 /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 14011 8737 135 CHINAMOBILE-CN - China Mobile Communicati 9498 5128 561 338 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4711 347 25 FPT-VN - FPT Telecom Company, VN 7545 4646 842 280 TPG-INTERNET-AP - TPG Telecom Limited, AU 7552 4099 1331 24 VIETEL-AS-AP - Viettel Group, VN 17561 3953 248 574 LCS-AS-AP - LARUS Limited, HK 56046 3637 887 182 CMNET-Jiangsu-AP - China Mobile communica 7713 3486 1044 69 telkomnet-as-ap - PT Telekomunikasi Indon 140292 3289 333 1655 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK - 45899 3271 1867 104 VNPT-AS-VN - VNPT Corp, VN 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 17287 42607 5619 AMAZON-02 - Amazon.com, Inc., US 22773 4922 3219 458 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4651 309 1091 CABLEONE - CABLE ONE, INC., US 7155 4337 286 87 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3844 1305 74 SHAW - Shaw Communications, CA 396982 3555 5382 604 GOOGLE-CLOUD-PLATFORM - Google LLC, US 36352 3323 246 1175 AS-COLOCROSSING - HostPapa, US 749 3132 54647 2383 DNIC-AS-00749 - United States Department 6079 2932 1155 1465 RCN-AS - RCN, US 7029 2890 2585 872 WINDSTREAM - Windstream Communications LL 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 6852 1709 149 UNI2-AS - Orange Espagne SA, ES 39891 5044 311 77 ALJAWWALSTC-AS - Saudi Telecom Company JS 9009 4340 387 2640 M247 - M247 Europe SRL, RO 20940 3809 3388 105 AKAMAI-ASN1 - Akamai International B.V., 212238 3610 261 2767 CDNEXT - Datacamp Limited, GB 12389 3107 2329 869 ROSTELECOM-AS - PJSC Rostelecom, RU 29355 2526 155 30 KCELL-AS - Kcell JSC, KZ 34984 2507 369 592 TELLCOM-AS - Superonline Iletisim Hizmetl 25019 1983 1384 141 SAUDINETSTC-AS - Saudi Telecom Company JS 3257 1765 2097 993 GTT-BACKBONE - GTT Communications Inc., U 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 13096 3301 615 AS8151 - UNINET, MX 10620 3397 442 1122 AS10620 - Telmex Colombia S.A., CO 13999 2219 495 327 AS13999 - Mega Cable, S.A. de C.V., MX 11830 1848 369 65 AS11830 - Instituto Costarricense de Elec 11664 1510 277 34 AS11664 - Techtel LMDS Comunicaciones Int 28573 1400 2433 268 AS28573 - Claro NXT Telecomunicacoes Ltda 3816 1268 763 226 AS3816 - COLOMBIA TELECOMUNICACIONES S.A. 6147 1175 371 21 AS6147 - INTEGRATEL PERU S.A.A., PE 22884 1103 73 387 AS22884 - TOTAL PLAY TELECOMUNICACIONES, 27715 1079 75 55 AS27715 - Locaweb Servicos de Internet S/ 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 1972 481 26 Vodafone Data - Vodafone Data, EG 36992 1944 1543 326 ETISALAT MISR - ETISALAT MISR, EG 24863 1438 389 20 Link Egypt (Link.NET) - Link Egypt (Link. 36903 1389 606 122 Office National des Postes et Telecommuni 36935 1303 524 47 Vodafone Data - Vodafone Data, EG 37069 1128 1100 11 The Egyptian Company for Mobile Services 29571 1086 70 18 Orange Côte d'Ivoire - Orange Côte d'Iv 15399 806 57 60 Wananchi Group (Kenya) Limited - Wananchi 20011 765 188 328 Dimension Data - Dimension Data, ZA 36914 548 82 3 Kenya Education Network - Kenya Education 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 17287 42607 5619 AMAZON-02 - Amazon.com, Inc., US 9808 14011 8737 135 CHINAMOBILE-CN - China Mobile Communicati 8151 13096 3301 615 AS8151 - UNINET, MX 12479 6852 1709 149 UNI2-AS - Orange Espagne SA, ES 9498 5128 561 338 BBIL-AP - BHARTI Airtel Ltd., IN 39891 5044 311 77 ALJAWWALSTC-AS - Saudi Telecom Company JS 22773 4922 3219 458 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 18403 4711 347 25 FPT-VN - FPT Telecom Company, VN 11492 4651 309 1091 CABLEONE - CABLE ONE, INC., US 7545 4646 842 280 TPG-INTERNET-AP - TPG Telecom Limited, AU 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 14011 13876 CHINAMOBILE-CN - China Mobile Communications Gr 8151 13096 12481 AS8151 - UNINET, MX 12479 6852 6703 UNI2-AS - Orange Espagne SA, ES 39891 5044 4967 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 9498 5128 4790 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4711 4686 FPT-VN - FPT Telecom Company, VN 22773 4922 4464 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7545 4646 4366 TPG-INTERNET-AP - TPG Telecom Limited, AU 7155 4337 4250 VIASAT-SP-BACKBONE - ViaSat,Inc., US 7552 4099 4075 VIETEL-AS-AP - Viettel Group, VN 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 4593 UNALLOCATED 2.26.176.0/24 10122 NETSTAR-AS-AP - NETSTAR 4593 UNALLOCATED 2.26.216.0/24 10122 NETSTAR-AS-AP - NETSTAR 4593 UNALLOCATED 2.26.219.0/24 10122 NETSTAR-AS-AP - NETSTAR 394928 UNALLOCATED 8.2.70.0/24 3356 LEVEL3 - Level 3 Parent 23338 UNALLOCATED 8.14.84.0/22 400043 IBRIDGE-01 - IBRIDGE CL 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 394936 UNALLOCATED 8.33.224.0/24 174 COGENT-174 - Cogent Com 396243 UNALLOCATED 8.34.113.0/24 3356 LEVEL3 - Level 3 Parent 397274 UNALLOCATED 8.36.79.0/24 3356 LEVEL3 - Level 3 Parent 396243 UNALLOCATED 8.37.112.0/24 3356 LEVEL3 - Level 3 Parent 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 UNASSIGNED 23.131.100.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.131.156.0/24 Origin: 401541 UNASSIGNED 23.131.156.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.131.212.0/24 Origin: 401541 UNASSIGNED 23.131.212.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.133.212.0/24 Origin: 18604 UNASSIGNED 23.133.212.0/24 Transit: 394625 WHITELABELIT - WhiteLabel IT Solutions C 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, 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 /11:97 /12:299 /13:587 /14:1192 /15:2130 /16:13711 /17:8258 /18:13250 /19:25413 /20:45460 /21:53521 /22:113976 /23:111292 /24:690714 /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 7300 13096 AS8151 - UNINET, MX 12479 5771 6852 UNI2-AS - Orange Espagne SA, ES 39891 3727 5044 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 6327 3610 3844 SHAW - Shaw Communications, CA 11492 3517 4651 CABLEONE - CABLE ONE, INC., US 16509 3387 17287 AMAZON-02 - Amazon.com, Inc., US 7155 3268 4337 VIASAT-SP-BACKBONE - ViaSat,Inc., US 22773 3125 4922 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 10620 2232 3397 AS10620 - Telmex Colombia S.A., CO 30036 2173 2519 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2749 2:2990 3:1284 4:6 5:5553 6:217 7:6 8:1342 9:540 11:172 12:1075 13:1294 14:2716 15:488 16:390 17:473 18:1076 20:602 21:4 22:189 23:8668 24:2814 25:2 27:2936 28:7 29:19 31:4005 32:34 34:94 35:310 36:4942 37:4469 38:10576 39:1450 40:448 41:4592 42:2262 43:3557 44:537 45:20194 46:5013 47:478 48:171 49:2483 50:2029 51:1122 52:1435 54:467 55:940 56:11 57:345 58:2506 59:1377 60:1190 61:3329 62:3178 63:1657 64:6696 65:2252 66:6226 67:3307 68:1360 69:4087 70:1073 71:597 72:3376 74:3155 75:1744 76:603 77:2954 78:2189 79:2098 80:2433 81:2311 82:4474 83:1566 84:2148 85:3933 86:1149 87:3004 88:1367 89:4947 90:768 91:8565 92:2770 93:3052 94:4676 95:4784 96:1459 97:301 98:894 99:1154 100:65 101:1626 102:4766 103:33182 104:5818 105:973 106:972 107:2994 108:1465 109:4036 110:2233 111:4242 112:3221 113:1974 114:2636 115:2357 116:2111 117:3900 118:2997 119:2135 120:2830 121:2034 122:3063 123:2202 124:1736 125:3026 126:175 128:1563 129:1006 130:1782 131:2598 132:885 133:494 134:1858 135:693 136:1591 137:1425 138:3463 139:1818 140:1899 141:2010 142:2757 143:2376 144:1936 145:723 146:2252 147:2457 148:2914 149:3620 150:1512 151:3185 152:2764 153:2180 154:8780 155:2358 156:4221 157:2584 158:1661 159:2944 160:4189 161:2127 162:4277 163:2802 164:2530 165:2791 166:1271 167:2415 168:4288 169:989 170:5635 171:1139 172:4936 173:3468 174:812 175:1438 176:4135 177:6435 178:4672 179:3086 180:3516 181:4778 182:4175 183:2904 184:2202 185:22020 186:6617 187:6863 188:4979 189:4939 190:10023 191:2353 192:12061 193:9635 194:7983 195:6004 196:3502 197:3468 198:6384 199:6188 200:8408 201:6994 202:10693 203:10698 204:4784 205:3721 206:4469 207:3882 208:4348 209:5411 210:4752 211:2739 212:5218 213:4126 214:1038 215:58 216:7319 217:3971 218:1927 219:408 220:2228 221:1472 222:978 223:3680 End of report