This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from Guam's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . IPv4 R&E Routing Table Report 21:25 GMT Sat 25 Apr, 2026 IPv4 BGP Table (Global) as seen at Guam. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Guam/ Analysis Summary ---------------- BGP routing table entries examined: 1074510 Prefixes after maximum aggregation (per Origin AS): 401322 Deaggregation factor: 2.68 Unique aggregates announced (without unneeded subnets): 514659 Number of IPv4 prefixes with a valid ROA: 651090 Number of IPv4 prefixes with an invalid ROA: 20 Number of IPv4 prefixes with no ROA: 423400 Total ASes present in the Internet Routing Table: 78487 Prefixes per ASN: 13.69 Origin-only ASes present in the Internet Routing Table: 67147 Origin ASes announcing only one prefix: 27087 Transit ASes present in the Internet Routing Table: 11340 Transit-only ASes present in the Internet Routing Table: 590 Paths with bogon ASNs present in the IPv4 Routing Table: 52 Average AS path length visible in the Internet Routing Table: 5.5 Max AS path length visible: 215 Max AS path prepend of ASN (205624) 210 Prefixes from unregistered ASNs in the Routing Table: 1020 Number of instances of unregistered ASNs: 1050 Number of 32-bit ASNs allocated by the RIRs: 49515 Number of 32-bit ASNs visible in the Routing Table: 40493 Prefixes from 32-bit ASNs in the Routing Table: 236130 Number of bogon 32-bit ASNs visible in the Routing Table: 76 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 368 Number of addresses announced to Internet: 3110449282 Equivalent to 185 /8s, 101 /16s and 176 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 351262 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 295497 Total APNIC prefixes after maximum aggregation: 83639 APNIC Deaggregation factor: 3.53 Prefixes being announced from the APNIC address blocks: 282332 Unique aggregates announced from the APNIC address blocks: 107831 APNIC Region origin ASes present in the Internet Routing Table: 15256 APNIC Prefixes per ASN: 18.51 APNIC Region origin ASes announcing only one prefix: 4665 APNIC Region transit ASes present in the Internet Routing Table: 2065 Average APNIC Region AS path length visible: 5.5 Max APNIC Region AS path length visible: 44 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10778 Number of APNIC addresses announced to Internet: 754273344 Equivalent to 44 /8s, 245 /16s and 76 /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: 307001 Total ARIN prefixes after maximum aggregation: 136124 ARIN Deaggregation factor: 2.26 Prefixes being announced from the ARIN address blocks: 306110 Unique aggregates announced from the ARIN address blocks: 147301 ARIN Region origin ASes present in the Internet Routing Table: 19437 ARIN Prefixes per ASN: 15.75 ARIN Region origin ASes announcing only one prefix: 7111 ARIN Region transit ASes present in the Internet Routing Table: 1988 Average ARIN Region AS path length visible: 4.9 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5560 Number of ARIN addresses announced to Internet: 1348169474 Equivalent to 80 /8s, 91 /16s and 111 /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: 291696 Total RIPE prefixes after maximum aggregation: 142968 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 294448 Unique aggregates announced from the RIPE address blocks: 190156 RIPE Region origin ASes present in the Internet Routing Table: 29457 RIPE Prefixes per ASN: 10.00 RIPE Region origin ASes announcing only one prefix: 12182 RIPE Region transit ASes present in the Internet Routing Table: 4071 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 215 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13331 Number of RIPE addresses announced to Internet: 733624192 Equivalent to 43 /8s, 186 /16s and 55 /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: 137896 Total LACNIC prefixes after maximum aggregation: 30849 LACNIC Deaggregation factor: 4.47 Prefixes being announced from the LACNIC address blocks: 132578 Unique aggregates announced from the LACNIC address blocks: 50328 LACNIC Region origin ASes present in the Internet Routing Table: 11390 LACNIC Prefixes per ASN: 11.64 LACNIC Region origin ASes announcing only one prefix: 2454 LACNIC Region transit ASes present in the Internet Routing Table: 2615 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9433 Number of LACNIC addresses announced to Internet: 169964224 Equivalent to 10 /8s, 33 /16s and 114 /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: 41400 Total AfriNIC prefixes after maximum aggregation: 7133 AfriNIC Deaggregation factor: 5.80 Prefixes being announced from the AfriNIC address blocks: 58674 Unique aggregates announced from the AfriNIC address blocks: 18756 AfriNIC Region origin ASes present in the Internet Routing Table: 2027 AfriNIC Prefixes per ASN: 28.95 AfriNIC Region origin ASes announcing only one prefix: 675 AfriNIC Region transit ASes present in the Internet Routing Table: 400 Average AfriNIC Region AS path length visible: 6.2 Max AfriNIC Region AS path length visible: 63 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1391 Number of AfriNIC addresses announced to Internet: 104246272 Equivalent to 6 /8s, 54 /16s and 172 /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 14038 9122 159 CHINAMOBILE-CN China Mobile Communication 7545 5895 826 483 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4960 4192 74 ERX-CERNET-BKB China Education and Resear 9498 4929 551 323 BBIL-AP BHARTI Airtel Ltd., IN 18403 4543 347 26 FPT-AS-AP FPT Telecom Company, VN 45899 4456 1873 54 VNPT-AS-VN VNPT Corp, VN 7552 4057 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3687 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3631 907 226 CMNET-JIANGSU-AP China Mobile communicati 24560 2963 838 598 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14831 41294 5674 AMAZON-02 - Amazon.com, Inc., US 174 5062 8766 822 COGENT-174 - Cogent Communications, LLC, 22773 4770 3099 360 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4659 309 1044 CABLEONE - CABLE ONE, INC., US 7155 3872 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3726 1305 75 SHAW - Shaw Communications, CA 396982 3323 4859 499 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3139 54728 2390 DNIC-AS-00749 - United States Department 36352 2719 222 903 AS-COLOCROSSING - HostPapa, US 30036 2656 364 357 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom C Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7166 1711 149 UNI2-AS, ES 39891 4943 305 72 ALJAWWALSTC-AS, SA 9009 3836 354 2258 M247, RO 20940 3818 3389 112 AKAMAI-ASN1, NL 12389 3181 2320 874 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2761 201 2036 CDNEXT, GB 34984 2452 365 575 TELLCOM-AS, TR 8452 1731 1852 17 TE-AS TE-AS, EG 203020 1666 252 832 HOSTROYALE, IN 13188 1607 100 27 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12859 3309 628 UNINET, MX 10620 3429 450 1105 Telmex Colombia S.A., CO 13999 2434 506 343 Mega Cable, S.A. de C.V., MX 11830 1937 369 65 Instituto Costarricense de Electricidad y 28573 1586 2431 268 Claro NXT Telecomunicacoes Ltda, BR 11664 1446 277 34 Techtel LMDS Comunicaciones Interactivas 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1248 371 22 INTEGRATEL PERU S.A.A., PE 28202 1083 52 9 MASTER SA, BR 26615 1073 2392 100 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 2024 648 34 RAYA-AS, EG 36992 1858 1533 336 ETISALAT-MISR, EG 37457 1659 385 28 Telkom-Internet, ZA 20011 1289 191 315 NTT-DATA-Inc, ZA 24863 1284 389 16 LINKdotNET-AS, EG 36935 1244 523 45 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1116 1100 11 MOBINIL, EG 29571 1071 78 19 ORANGE-COTE-IVOIRE, CI 36914 554 82 3 KENET-AS, KE Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14831 41294 5674 AMAZON-02 - Amazon.com, Inc., US 9808 14038 9122 159 CHINAMOBILE-CN China Mobile Communication 8151 12859 3309 628 UNINET, MX 12479 7166 1711 149 UNI2-AS, ES 7545 5895 826 483 TPG-INTERNET-AP TPG Telecom Limited, AU 174 5062 8766 822 COGENT-174 - Cogent Communications, LLC, 4538 4960 4192 74 ERX-CERNET-BKB China Education and Resear 39891 4943 305 72 ALJAWWALSTC-AS, SA 9498 4929 551 323 BBIL-AP BHARTI Airtel Ltd., IN 22773 4770 3099 360 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 14038 13879 CHINAMOBILE-CN China Mobile Communications Grou 8151 12859 12231 UNINET, MX 12479 7166 7017 UNI2-AS, ES 7545 5895 5412 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4960 4886 ERX-CERNET-BKB China Education and Research Net 39891 4943 4871 ALJAWWALSTC-AS, SA 9498 4929 4606 BBIL-AP BHARTI Airtel Ltd., IN 18403 4543 4517 FPT-AS-AP FPT Telecom Company, VN 22773 4770 4410 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 45899 4456 4402 VNPT-AS-VN VNPT Corp, VN Complete listing at https://bgp.nsrc.org/REN/Guam/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887 - C 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 33491 COMCAST-33491 - Comcast Complete listing at https://bgp.nsrc.org/REN/Guam/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE - Hurricane Electric LLC, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-spar 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: 3605 ERX-KUENTOS-AS Guam Cablevision, LLC., G 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 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS - UnReal Servers, LLC, US Complete listing at https://bgp.nsrc.org/REN/Guam/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 /12:298 /13:586 /14:1195 /15:2109 /16:13755 /17:8527 /18:14034 /19:26426 /20:47747 /21:53874 /22:115544 /23:113247 /24:676278 /25:74 /26:84 /27:112 /28:41 /29:64 /30:9 /31:3 /32:339 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 7047 12859 UNINET, MX 12479 6107 7166 UNI2-AS, ES 39891 3628 4943 ALJAWWALSTC-AS, SA 11492 3523 4659 CABLEONE - CABLE ONE, INC., US 6327 3506 3726 SHAW - Shaw Communications, CA 22773 3052 4770 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2826 3872 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2657 14831 AMAZON-02 - Amazon.com, Inc., US 30036 2309 2656 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2233 3429 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Guam/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2566 2:1883 3:1008 4:7 5:5219 6:200 7:6 8:1522 9:43 11:172 12:1188 13:716 14:2767 15:460 16:200 17:433 18:925 20:626 21:4 22:188 23:8216 24:2778 25:2 27:2888 28:1 29:19 31:3540 32:40 34:91 35:288 36:4721 37:4481 38:11338 39:1290 40:432 41:4719 42:2230 43:3230 44:450 45:20658 46:4982 47:433 48:127 49:2272 50:2020 51:691 52:1323 54:290 55:1212 56:11 57:330 58:2584 59:1606 60:1183 61:3389 62:3123 63:1730 64:6357 65:2147 66:6145 67:3269 68:1506 69:4213 70:1055 71:622 72:3203 74:3045 75:1501 76:590 77:2957 78:2004 79:1813 80:2384 81:2271 82:4158 83:1448 84:2144 85:3847 86:1097 87:2566 88:1341 89:4817 90:805 91:8528 92:2810 93:3038 94:4490 95:4749 96:1451 97:315 98:944 99:815 100:70 101:1648 102:5225 103:32883 104:5367 105:2338 106:920 107:2890 108:1252 109:4343 110:2301 111:4197 112:3207 113:2096 114:2306 115:2351 116:2209 117:3545 118:3058 119:2172 120:2764 121:1635 122:3041 123:2474 124:1848 125:3046 126:126 128:1598 129:1019 130:1662 131:2591 132:864 133:486 134:1676 135:601 136:1594 137:1366 138:3568 139:1663 140:1779 141:1734 142:2538 143:2187 144:1774 145:641 146:2209 147:2230 148:2797 149:3211 150:1385 151:2827 152:2327 153:1439 154:10322 155:2324 156:4610 157:2331 158:1571 159:2868 160:3909 161:1972 162:4054 163:2552 164:2084 165:2701 166:1261 167:2326 168:4213 169:894 170:5826 171:1156 172:4756 173:3483 174:880 175:1400 176:3963 177:5759 178:4388 179:2589 180:3179 181:4711 182:4044 183:2838 184:2012 185:22021 186:6280 187:5429 188:4586 189:4698 190:10046 191:2025 192:11554 193:9680 194:8011 195:6025 196:3644 197:3913 198:6162 199:6079 200:8441 201:6572 202:11223 203:10917 204:4773 205:3698 206:4699 207:3891 208:4416 209:5439 210:5241 211:2935 212:5139 213:4145 214:1043 215:47 216:7319 217:3596 218:2007 219:651 220:2332 221:1333 222:1435 223:3483 End of report