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 01 Aug, 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: 1071453 Prefixes after maximum aggregation (per Origin AS): 408490 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 526418 Number of IPv4 prefixes with a valid ROA: 724329 Number of IPv4 prefixes with an invalid ROA: 25 Number of IPv4 prefixes with no ROA: 347099 Total ASes present in the Internet Routing Table: 78991 Prefixes per ASN: 13.56 Origin-only ASes present in the Internet Routing Table: 67586 Origin ASes announcing only one prefix: 27673 Transit ASes present in the Internet Routing Table: 11405 Transit-only ASes present in the Internet Routing Table: 620 Paths with bogon ASNs present in the IPv4 Routing Table: 34 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: 1240 Number of instances of unregistered ASNs: 1273 Number of 32-bit ASNs allocated by the RIRs: 50656 Number of 32-bit ASNs visible in the Routing Table: 41241 Prefixes from 32-bit ASNs in the Routing Table: 237183 Number of bogon 32-bit ASNs visible in the Routing Table: 80 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 367 Number of addresses announced to Internet: 3123536258 Equivalent to 186 /8s, 45 /16s and 97 /24s Percentage of available address space announced: 84.4 Percentage of allocated address space announced: 84.4 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: 349319 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 294681 Total APNIC prefixes after maximum aggregation: 84776 APNIC Deaggregation factor: 3.48 Prefixes being announced from the APNIC address blocks: 280594 Unique aggregates announced from the APNIC address blocks: 109323 APNIC Region origin ASes present in the Internet Routing Table: 15331 APNIC Prefixes per ASN: 18.30 APNIC Region origin ASes announcing only one prefix: 4730 APNIC Region transit ASes present in the Internet Routing Table: 2074 Average APNIC Region AS path length visible: 5.5 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10889 Number of APNIC addresses announced to Internet: 753066048 Equivalent to 44 /8s, 226 /16s and 224 /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: 309465 Total ARIN prefixes after maximum aggregation: 138154 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 307917 Unique aggregates announced from the ARIN address blocks: 150334 ARIN Region origin ASes present in the Internet Routing Table: 19506 ARIN Prefixes per ASN: 15.79 ARIN Region origin ASes announcing only one prefix: 7155 ARIN Region transit ASes present in the Internet Routing Table: 1984 Average ARIN Region AS path length visible: 4.9 Max ARIN Region AS path length visible: 47 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5717 Number of ARIN addresses announced to Internet: 1348277506 Equivalent to 80 /8s, 93 /16s and 21 /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: 296402 Total RIPE prefixes after maximum aggregation: 146375 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 301051 Unique aggregates announced from the RIPE address blocks: 195857 RIPE Region origin ASes present in the Internet Routing Table: 29657 RIPE Prefixes per ASN: 10.15 RIPE Region origin ASes announcing only one prefix: 12269 RIPE Region transit ASes present in the Internet Routing Table: 4116 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: 13672 Number of RIPE addresses announced to Internet: 749622400 Equivalent to 44 /8s, 174 /16s and 84 /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: 131214 Total LACNIC prefixes after maximum aggregation: 31388 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 125643 Unique aggregates announced from the LACNIC address blocks: 51087 LACNIC Region origin ASes present in the Internet Routing Table: 11478 LACNIC Prefixes per ASN: 10.95 LACNIC Region origin ASes announcing only one prefix: 2799 LACNIC Region transit ASes present in the Internet Routing Table: 2639 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9548 Number of LACNIC addresses announced to Internet: 168372928 Equivalent to 10 /8s, 9 /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: 38451 Total AfriNIC prefixes after maximum aggregation: 7100 AfriNIC Deaggregation factor: 5.42 Prefixes being announced from the AfriNIC address blocks: 55881 Unique aggregates announced from the AfriNIC address blocks: 19503 AfriNIC Region origin ASes present in the Internet Routing Table: 2049 AfriNIC Prefixes per ASN: 27.27 AfriNIC Region origin ASes announcing only one prefix: 720 AfriNIC Region transit ASes present in the Internet Routing Table: 392 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 54 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1415 Number of AfriNIC addresses announced to Internet: 103961088 Equivalent to 6 /8s, 50 /16s and 82 /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 14286 8968 149 CHINAMOBILE-CN - China Mobile Communicati 7545 5833 818 448 TPG-INTERNET-AP - TPG Telecom Limited, AU 9498 5059 558 341 BBIL-AP - BHARTI Airtel Ltd., IN 4538 4883 4192 73 ERX-CERNET-BKB - China Education and Rese 18403 4633 347 24 FPT-VN - FPT Telecom Company, VN 7552 4023 1331 24 VIETEL-AS-AP - Viettel Group, VN 17561 3763 236 607 LCS-AS-AP - LARUS Limited, HK 56046 3742 908 234 CMNET-Jiangsu-AP - China Mobile communica 7713 3734 1044 63 telkomnet-as-ap - PT Telekomunikasi Indon 45899 3400 1868 98 VNPT-AS-VN - VNPT Corp, VN 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 15657 41522 5630 AMAZON-02 - Amazon.com, Inc., US 22773 4801 3166 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4616 306 1124 CABLEONE - CABLE ONE, INC., US 7155 3992 286 98 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3727 1305 74 SHAW - Shaw Communications, CA 174 3725 8836 685 COGENT-174 - Cogent Communications, LLC, 396982 3450 4878 540 GOOGLE-CLOUD-PLATFORM - Google LLC, US 36352 3189 238 1118 AS-COLOCROSSING - HostPapa, US 749 3135 54727 2386 DNIC-AS-00749 - United States Department 7029 2722 2550 875 WINDSTREAM - Windstream Communications LL 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 7009 1711 150 UNI2-AS - Orange Espagne SA, ES 39891 4907 302 76 ALJAWWALSTC-AS - Saudi Telecom Company JS 9009 4176 376 2560 M247 - M247 Europe SRL, RO 20940 3833 3389 109 AKAMAI-ASN1 - Akamai International B.V., 212238 3485 250 2627 CDNEXT - Datacamp Limited, GB 12389 3130 2330 872 ROSTELECOM-AS - PJSC Rostelecom, RU 29355 2549 151 25 KCELL-AS - Kcell JSC, KZ 34984 2488 367 585 TELLCOM-AS - Superonline Iletisim Hizmetl 44559 1913 120 917 ITHOSTLINE - IT HOSTLINE LTD, CY 8452 1720 1852 17 TE-AS - IDDQD-AS, EG 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 12935 3288 616 AS8151 - UNINET, MX 10620 3444 451 1107 AS10620 - Telmex Colombia S.A., CO 13999 2281 499 332 AS13999 - Mega Cable, S.A. de C.V., MX 11830 1897 369 65 AS11830 - Instituto Costarricense de Elec 11664 1493 277 34 AS11664 - Techtel LMDS Comunicaciones Int 28573 1372 2431 269 AS28573 - Claro NXT Telecomunicacoes Ltda 3816 1342 768 213 AS3816 - COLOMBIA TELECOMUNICACIONES S.A. 6147 1211 371 21 AS6147 - INTEGRATEL PERU S.A.A., PE 22884 1097 70 386 AS22884 - TOTAL PLAY TELECOMUNICACIONES, 26615 1053 2384 95 AS26615 - TIM S/A, 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 1987 601 34 Vodafone Data - Vodafone Data, EG 36992 1930 1543 333 ETISALAT MISR - ETISALAT MISR, EG 36903 1350 587 104 Office National des Postes et Telecommuni 24863 1318 389 16 Link Egypt (Link.NET) - Link Egypt (Link. 36935 1274 523 48 Vodafone Data - Vodafone Data, EG 37069 1116 1100 11 The Egyptian Company for Mobile Services 29571 1086 70 18 Orange Côte d'Ivoire - Orange Côte d'Iv 328608 591 54 191 Africa on Cloud - Africa on Cloud, ZA 15399 553 57 62 Wananchi Group (Kenya) Limited - Wananchi 36914 553 82 3 Kenya Education Network - Kenya Education 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 15657 41522 5630 AMAZON-02 - Amazon.com, Inc., US 9808 14286 8968 149 CHINAMOBILE-CN - China Mobile Communicati 8151 12935 3288 616 AS8151 - UNINET, MX 12479 7009 1711 150 UNI2-AS - Orange Espagne SA, ES 7545 5833 818 448 TPG-INTERNET-AP - TPG Telecom Limited, AU 9498 5059 558 341 BBIL-AP - BHARTI Airtel Ltd., IN 39891 4907 302 76 ALJAWWALSTC-AS - Saudi Telecom Company JS 4538 4883 4192 73 ERX-CERNET-BKB - China Education and Rese 22773 4801 3166 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 18403 4633 347 24 FPT-VN - FPT Telecom Company, VN 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 14286 14137 CHINAMOBILE-CN - China Mobile Communications Gr 8151 12935 12319 AS8151 - UNINET, MX 12479 7009 6859 UNI2-AS - Orange Espagne SA, ES 7545 5833 5385 TPG-INTERNET-AP - TPG Telecom Limited, AU 39891 4907 4831 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 4538 4883 4810 ERX-CERNET-BKB - China Education and Research N 9498 5059 4718 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4633 4609 FPT-VN - FPT Telecom Company, VN 22773 4801 4433 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4023 3999 VIETEL-AS-AP - Viettel Group, 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 394928 UNALLOCATED 8.2.70.0/24 6461 ZAYO-6461 - Zayo Bandwi 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 8.33.224.0/24 174 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 396243 UNALLOCATED 8.37.123.0/24 3356 LEVEL3 - Level 3 Parent 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 397274 UNALLOCATED 8.40.70.0/24 3356 LEVEL3 - Level 3 Parent 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 23.131.100.0/24 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: 32217 GPIEX - GPIEX INC, US 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/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 /11:97 /12:300 /13:589 /14:1189 /15:2129 /16:13814 /17:8440 /18:13412 /19:25923 /20:47227 /21:54252 /22:114331 /23:111149 /24:678095 /25:68 /26:84 /27:109 /28:33 /29:56 /30:8 /31:1 /32:78 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 7125 12935 AS8151 - UNINET, MX 12479 5936 7009 UNI2-AS - Orange Espagne SA, ES 39891 3656 4907 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 11492 3511 4616 CABLEONE - CABLE ONE, INC., US 6327 3508 3727 SHAW - Shaw Communications, CA 22773 3056 4801 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 16509 2965 15657 AMAZON-02 - Amazon.com, Inc., US 7155 2946 3992 VIASAT-SP-BACKBONE - ViaSat,Inc., US 10620 2248 3444 AS10620 - Telmex Colombia S.A., CO 30036 2206 2551 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2640 2:2827 3:1026 4:7 5:5266 6:206 7:6 8:1401 9:94 11:172 12:1104 13:810 14:2786 15:482 16:259 17:458 18:945 20:618 21:4 22:188 23:8577 24:2784 25:2 27:2874 28:5 29:19 31:3817 32:38 34:94 35:294 36:4876 37:4457 38:11268 39:1379 40:424 41:4676 42:2235 43:3432 44:478 45:20093 46:4977 47:486 48:168 49:2275 50:2012 51:794 52:1373 54:306 55:1243 56:11 57:331 58:2482 59:1538 60:1215 61:3267 62:3175 63:1751 64:6583 65:2144 66:6223 67:3342 68:1285 69:4063 70:1046 71:603 72:3257 74:3061 75:1598 76:591 77:2929 78:2109 79:1835 80:2369 81:2291 82:4258 83:1484 84:2166 85:3911 86:1106 87:2888 88:1322 89:4822 90:768 91:8492 92:2743 93:3039 94:4481 95:4734 96:1454 97:311 98:930 99:970 100:73 101:1373 102:4895 103:32679 104:5650 105:1105 106:920 107:2980 108:1343 109:3918 110:2291 111:4255 112:3139 113:1953 114:2516 115:2331 116:2121 117:3681 118:3007 119:2137 120:2861 121:1715 122:3065 123:2294 124:1752 125:3024 126:156 128:1580 129:975 130:1732 131:2544 132:889 133:493 134:1767 135:646 136:1558 137:1400 138:3439 139:1867 140:1890 141:1811 142:2627 143:2154 144:1879 145:697 146:2194 147:2313 148:2809 149:3645 150:1409 151:2954 152:2446 153:2013 154:10110 155:2391 156:4669 157:2468 158:1624 159:2894 160:3913 161:2044 162:4220 163:2687 164:2386 165:2789 166:1212 167:2370 168:4243 169:908 170:5636 171:1130 172:4918 173:3479 174:889 175:1436 176:4026 177:5277 178:4508 179:2530 180:3258 181:4760 182:4048 183:2871 184:2053 185:21980 186:6755 187:5582 188:4758 189:4683 190:10040 191:1777 192:11844 193:9641 194:7992 195:5928 196:3455 197:3146 198:6226 199:6119 200:8464 201:6691 202:11021 203:10664 204:4719 205:3721 206:4440 207:3965 208:4359 209:5426 210:5008 211:2840 212:5222 213:4129 214:1025 215:47 216:7323 217:3755 218:1943 219:611 220:2288 221:1354 222:1098 223:3611 End of report