IPv4 R&E Routing Table Report 20:25 GMT Sat 30 May, 2026 IPv4 BGP Table (R&E) as seen at AIT. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/AIT/ Analysis Summary ---------------- BGP routing table entries examined: 4746 Prefixes after maximum aggregation (per Origin AS): 1630 Deaggregation factor: 2.91 Unique aggregates announced (without unneeded subnets): 2536 Number of IPv4 prefixes with a valid ROA: 4300 Number of IPv4 prefixes with an invalid ROA: 28 Number of IPv4 prefixes with no ROA: 418 Total ASes present in the Internet Routing Table: 109 Prefixes per ASN: 43.54 Origin-only ASes present in the Internet Routing Table: 107 Origin ASes announcing only one prefix: 33 Transit ASes present in the Internet Routing Table: 2 Transit-only ASes present in the Internet Routing Table: 1 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 3.0 Max AS path length visible: 3 Max AS path prepend of ASN ( 4621) 1 Prefixes from unregistered ASNs in the Routing Table: 1 Number of instances of unregistered ASNs: 1 Number of 32-bit ASNs allocated by the RIRs: 49951 Number of 32-bit ASNs visible in the Routing Table: 48 Prefixes from 32-bit ASNs in the Routing Table: 523 Number of bogon 32-bit ASNs visible in the Routing Table: 0 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 1 Number of addresses announced to Internet: 6599374 Equivalent to 0 /8s, 100 /16s and 178 /24s Percentage of available address space announced: 0.2 Percentage of allocated address space announced: 0.2 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: 357 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 3427 Total APNIC prefixes after maximum aggregation: 867 APNIC Deaggregation factor: 3.95 Prefixes being announced from the APNIC address blocks: 3483 Unique aggregates announced from the APNIC address blocks: 1369 APNIC Region origin ASes present in the Internet Routing Table: 101 APNIC Prefixes per ASN: 34.49 APNIC Region origin ASes announcing only one prefix: 30 APNIC Region transit ASes present in the Internet Routing Table: 2 Average APNIC Region AS path length visible: 3.0 Max APNIC Region AS path length visible: 3 Number of APNIC region 32-bit ASNs visible in the Routing Table: 48 Number of APNIC addresses announced to Internet: 2880974 Equivalent to 0 /8s, 43 /16s and 245 /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: 1317 Total ARIN prefixes after maximum aggregation: 761 ARIN Deaggregation factor: 1.73 Prefixes being announced from the ARIN address blocks: 1126 Unique aggregates announced from the ARIN address blocks: 1031 ARIN Region origin ASes present in the Internet Routing Table: 5 ARIN Prefixes per ASN: 225.20 ARIN Region origin ASes announcing only one prefix: 2 ARIN Region transit ASes present in the Internet Routing Table: 0 Average ARIN Region AS path length visible: 3.0 Max ARIN Region AS path length visible: 3 Number of ARIN region 32-bit ASNs visible in the Routing Table: 0 Number of ARIN addresses announced to Internet: 3656960 Equivalent to 0 /8s, 55 /16s and 205 /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: 1 Total RIPE prefixes after maximum aggregation: 1 RIPE Deaggregation factor: 1.00 Prefixes being announced from the RIPE address blocks: 134 Unique aggregates announced from the RIPE address blocks: 134 RIPE Region origin ASes present in the Internet Routing Table: 1 RIPE Prefixes per ASN: 134.00 RIPE Region origin ASes announcing only one prefix: 1 RIPE Region transit ASes present in the Internet Routing Table: 0 Average RIPE Region AS path length visible: 3.0 Max RIPE Region AS path length visible: 3 Number of RIPE region 32-bit ASNs visible in the Routing Table: 0 Number of RIPE addresses announced to Internet: 60928 Equivalent to 0 /8s, 0 /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: 0 Total LACNIC prefixes after maximum aggregation: 0 LACNIC Deaggregation factor: -nan Prefixes being announced from the LACNIC address blocks: 0 Unique aggregates announced from the LACNIC address blocks: 0 LACNIC Region origin ASes present in the Internet Routing Table: 0 LACNIC Prefixes per ASN: -nan LACNIC Region origin ASes announcing only one prefix: 0 LACNIC Region transit ASes present in the Internet Routing Table: 0 Average LACNIC Region AS path length visible: -nan Max LACNIC Region AS path length visible: 0 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0 Number of LACNIC addresses announced to Internet: 0 Equivalent to 0 /8s, 0 /16s and 0 /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: 0 Total AfriNIC prefixes after maximum aggregation: 0 AfriNIC Deaggregation factor: -nan Prefixes being announced from the AfriNIC address blocks: 1 Unique aggregates announced from the AfriNIC address blocks: 1 AfriNIC Region origin ASes present in the Internet Routing Table: 0 AfriNIC Prefixes per ASN: inf AfriNIC Region origin ASes announcing only one prefix: 0 AfriNIC Region transit ASes present in the Internet Routing Table: 0 Average AfriNIC Region AS path length visible: -nan Max AfriNIC Region AS path length visible: 0 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0 Number of AfriNIC addresses announced to Internet: 256 Equivalent to 0 /8s, 0 /16s and 1 /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 45458 683 52 179 SBN-AWN-AS-02-AP - SBN-ISP/AWN-ISP and SB 7470 664 243 72 TRUEINTERNET-AS-AP - TRUE INTERNET Co.,Lt 9931 573 67 51 NTPCL-AS-AP - National Telecom Public Com 131293 278 22 79 TOT-LLI-AS-AP - TOT Public Company Limite 9335 141 10 44 NTPCL-AS-AP - National Telecom Public Com 23884 123 10 34 PROENNET-AS - Proen Corp Public Company L 23969 118 16 108 TOT-NET - TOT Public Company Limited, TH 4621 93 43 13 UNINET-AS-AP - UNINET-TH, TH 132203 84 31 33 TENCENT-NET-AP-CN - Tencent Building, Kej 9903 46 3 3 RIT-AS-AP - Rajamangala Institute of Tech Complete listing at https://bgp.nsrc.org/REN/AIT/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 1162 1019 640 AMAZON-02 - Amazon.com, Inc., US 19551 105 7 76 INCAPSULA - Incapsula Inc, US 21859 48 3 43 ZEN-ECN - Zenlayer Inc, US 7862 1 0 1 CHEVRON - Chevron Corporation, US 13335 1 0 1 CLOUDFLARENET - Cloudflare, Inc., US Complete listing at https://bgp.nsrc.org/REN/AIT/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 20940 1 0 1 AKAMAI-ASN1 - Akamai International B.V., Complete listing at https://bgp.nsrc.org/REN/AIT/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description Complete listing at https://bgp.nsrc.org/REN/AIT/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description Complete listing at https://bgp.nsrc.org/REN/AIT/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 1162 1019 640 AMAZON-02 - Amazon.com, Inc., US 45458 683 52 179 SBN-AWN-AS-02-AP - SBN-ISP/AWN-ISP and SB 7470 664 243 72 TRUEINTERNET-AS-AP - TRUE INTERNET Co.,Lt 9931 573 67 51 NTPCL-AS-AP - National Telecom Public Com 131293 278 22 79 TOT-LLI-AS-AP - TOT Public Company Limite 9335 141 10 44 NTPCL-AS-AP - National Telecom Public Com 23884 123 10 34 PROENNET-AS - Proen Corp Public Company L 23969 118 16 108 TOT-NET - TOT Public Company Limited, TH 19551 105 7 76 INCAPSULA - Incapsula Inc, US 4621 93 43 13 UNINET-AS-AP - UNINET-TH, TH Complete listing at https://bgp.nsrc.org/REN/AIT/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7470 664 592 TRUEINTERNET-AS-AP - TRUE INTERNET Co.,Ltd., TH 9931 573 522 NTPCL-AS-AP - National Telecom Public Company L 45458 683 504 SBN-AWN-AS-02-AP - SBN-ISP/AWN-ISP and SBN-NIX/ 131293 278 199 TOT-LLI-AS-AP - TOT Public Company Limited, TH 9335 141 97 NTPCL-AS-AP - National Telecom Public Company L 23884 123 89 PROENNET-AS - Proen Corp Public Company Limited 4621 93 80 UNINET-AS-AP - UNINET-TH, TH 132203 84 51 TENCENT-NET-AP-CN - Tencent Building, Kejizhong 9903 46 43 RIT-AS-AP - Rajamangala Institute of Technology 10226 41 36 ETL-IX-AS-AP - ETL Company Limited, LA Complete listing at https://bgp.nsrc.org/REN/AIT/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 137394 UNALLOCATED 202.28.54.0/24 4621 UNINET-AS-AP - UNINET-T Complete listing at https://bgp.nsrc.org/REN/AIT/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 202.14.117.0/24 Origin: 17827 STOU-AS-TH - Sukhothai Thammathirat Open 202.14.117.0/24 Transit: 4621 UNINET-AS-AP - UNINET-TH, TH Complete listing at https://bgp.nsrc.org/REN/AIT/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- !!Default route being announced!! /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:0 /9:0 /10:0 /11:0 /12:0 /13:0 /14:1 /15:16 /16:25 /17:32 /18:46 /19:66 /20:202 /21:103 /22:346 /23:236 /24:3654 /25:2 /26:3 /27:3 /28:2 /29:4 /30:2 /31:1 /32:1 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 16509 250 1162 AMAZON-02 - Amazon.com, Inc., US 19551 32 105 INCAPSULA - Incapsula Inc, US 21859 19 48 ZEN-ECN - Zenlayer Inc, US 4621 12 93 UNINET-AS-AP - UNINET-TH, TH 24187 8 23 KIRZ-AS-TH - KIRZ Service Provider, TH 45458 8 683 SBN-AWN-AS-02-AP - SBN-ISP/AWN-ISP and SBN-NIX/AWN-NIX, TH 139591 8 16 NTPCL-AS-AP - National Telecom Public Company Limited, TH 9335 5 141 NTPCL-AS-AP - National Telecom Public Company Limited, TH 7470 4 664 TRUEINTERNET-AS-AP - TRUE INTERNET Co.,Ltd., TH 133385 4 4 ATOMMYANMAR-AS-AP - Atom Myanmar Limited, MM Complete listing at https://bgp.nsrc.org/REN/AIT/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:133 3:61 5:3 13:45 14:83 15:33 16:20 18:29 23:93 24:10 27:18 31:3 35:11 37:5 38:6 43:11 45:78 46:2 47:1 49:261 50:2 52:51 54:19 58:79 61:219 64:19 65:2 66:14 67:3 69:7 72:3 74:3 75:1 76:4 77:2 80:9 82:4 88:1 89:3 91:5 93:32 95:1 96:4 98:1 99:35 101:16 103:80 104:9 107:37 108:10 110:206 111:17 112:15 113:46 114:24 115:2 116:4 117:1 118:78 119:111 121:1 122:258 124:4 125:2 128:4 129:4 130:19 131:2 134:7 136:10 139:4 140:1 141:15 142:5 144:1 145:3 146:1 147:24 148:4 150:2 151:11 152:2 153:8 155:3 156:1 157:7 159:11 160:2 161:2 162:12 163:5 164:32 165:3 166:2 167:13 168:10 169:4 170:17 171:128 172:2 173:2 178:4 180:15 182:8 183:8 184:8 185:25 188:2 191:1 192:26 193:9 195:1 198:17 199:10 202:295 203:350 204:15 205:4 206:4 207:8 208:6 209:10 210:64 211:4 212:1 213:3 216:21 218:1 219:1 End of report