Routing Table Report 00:00 GMT Fri 18 Nov, 2011
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 385463
Prefixes after maximum aggregation: 168120
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 187830
Total ASes present in the Internet Routing Table: 39340
Prefixes per ASN: 9.80
Origin-only ASes present in the Internet Routing Table: 32546
Origin ASes announcing only one prefix: 15488
Transit ASes present in the Internet Routing Table: 5142
Transit-only ASes present in the Internet Routing Table: 130
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 25
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5552
Unregistered ASNs in the Routing Table: 907
Number of 32-bit ASNs allocated by the RIRs: 1963
Number of 32-bit ASNs visible in the Routing Table: 1652
Prefixes from 32-bit ASNs in the Routing Table: 3820
Special use prefixes present in the Routing Table: 86
Prefixes being announced from unallocated address space: 86
Number of addresses announced to Internet: 2491707427
Equivalent to 148 /8s, 132 /16s and 112 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.6
Total number of prefixes smaller than registry allocations: 161810
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93079
Total APNIC prefixes after maximum aggregation: 30048
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 89546
Unique aggregates announced from the APNIC address blocks: 38362
APNIC Region origin ASes present in the Internet Routing Table: 4595
APNIC Prefixes per ASN: 19.49
APNIC Region origin ASes announcing only one prefix: 1282
APNIC Region transit ASes present in the Internet Routing Table: 707
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 110
Number of APNIC addresses announced to Internet: 630293248
Equivalent to 37 /8s, 145 /16s and 131 /24s
Percentage of available APNIC address space announced: 79.9
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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, 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: 148681
Total ARIN prefixes after maximum aggregation: 76657
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120552
Unique aggregates announced from the ARIN address blocks: 48566
ARIN Region origin ASes present in the Internet Routing Table: 14749
ARIN Prefixes per ASN: 8.17
ARIN Region origin ASes announcing only one prefix: 5625
ARIN Region transit ASes present in the Internet Routing Table: 1512
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 803388168
Equivalent to 47 /8s, 226 /16s and 187 /24s
Percentage of available ARIN address space announced: 63.8
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, 393216-394239
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,
53/8, 54/8, 55/8, 56/8, 57/8, 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, 173/8,
174/8, 184/8, 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: 94276
Total RIPE prefixes after maximum aggregation: 51320
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 85658
Unique aggregates announced from the RIPE address blocks: 54431
RIPE Region origin ASes present in the Internet Routing Table: 16125
RIPE Prefixes per ASN: 5.31
RIPE Region origin ASes announcing only one prefix: 7980
RIPE Region transit ASes present in the Internet Routing Table: 2481
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 21
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1151
Number of RIPE addresses announced to Internet: 492532940
Equivalent to 29 /8s, 91 /16s and 116 /24s
Percentage of available RIPE address space announced: 79.3
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
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 36833
Total LACNIC prefixes after maximum aggregation: 7960
LACNIC Deaggregation factor: 4.63
Prefixes being announced from the LACNIC address blocks: 36216
Unique aggregates announced from the LACNIC address blocks: 18641
LACNIC Region origin ASes present in the Internet Routing Table: 1546
LACNIC Prefixes per ASN: 23.43
LACNIC Region origin ASes announcing only one prefix: 446
LACNIC Region transit ASes present in the Internet Routing Table: 278
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 374
Number of LACNIC addresses announced to Internet: 93143304
Equivalent to 5 /8s, 141 /16s and 65 /24s
Percentage of available LACNIC address space announced: 61.7
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8607
Total AfriNIC prefixes after maximum aggregation: 2062
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6660
Unique aggregates announced from the AfriNIC address blocks: 2054
AfriNIC Region origin ASes present in the Internet Routing Table: 500
AfriNIC Prefixes per ASN: 13.32
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 108
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27768320
Equivalent to 1 /8s, 167 /16s and 182 /24s
Percentage of available AfriNIC address space announced: 41.4
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1950 11101 661 Korea Telecom (KIX)
17974 1648 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1624 303 87 TPG Internet Pty Ltd
4755 1527 378 168 Videsh Sanchar Nigam Ltd. Aut
7552 1394 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1094 80 494 Sify Limited
4808 975 1950 273 CNCGROUP IP network: China169
24560 965 343 218 Bharti Airtel Ltd.
18101 953 119 148 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3539 3814 220 bellsouth.net, inc.
7029 2958 1042 212 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1849 680 122 AppliedTheory Corporation
4323 1614 1093 388 Time Warner Telecom
20115 1596 1546 624 Charter Communications
22773 1499 2909 103 Cox Communications, Inc.
30036 1423 256 668 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1317 7063 864 AT&T WorldNet Services
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1495 416 14 Corbina telecom
286 1069 805 189 KPNQwest Backbone AS
6830 647 1927 411 UPC Distribution Services
34984 600 112 188 Tellcom Iletisim Hizmetleri
20940 560 185 439 Akamai Technologies European
9116 541 326 31 Goldenlines main autonomous s
3292 532 2106 410 TDC Tele Danmark
3320 511 8168 388 Deutsche Telekom AG
12479 483 596 9 Uni2 Autonomous System
8866 462 133 26 Bulgarian Telecommunication C
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1706 316 157 TVCABLE BOGOTA
28573 1494 1044 70 Types of queries are: POCs, o
8151 1492 2951 347 Uninet S.A. de C.V.
7303 1238 751 173 Telecom Argentina Stet-France
27947 612 72 86 Telconet S.A
22047 580 322 17 Types of queries are: POCs, o
6503 568 434 70 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
10481 547 429 25 Prima S.A.
3816 543 234 96 COLOMBIA TELECOMUNICACIONES S
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 775 146 34 LINKdotNET AS number
8452 685 446 12 TEDATA
15475 455 74 8 Nile Online
36992 283 415 21 Etisalat MISR
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
33776 199 13 14 Starcomms Nigeria Limited
12258 196 28 61 YEBO-AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3539 3814 220 bellsouth.net, inc.
7029 2958 1042 212 Windstream Communications Inc
18566 2093 383 177 Covad Communications
4766 1950 11101 661 Korea Telecom (KIX)
1785 1849 680 122 AppliedTheory Corporation
10620 1706 316 157 TVCABLE BOGOTA
17974 1648 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1624 303 87 TPG Internet Pty Ltd
4323 1614 1093 388 Time Warner Telecom
20115 1596 1546 624 Charter Communications
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2958 2746 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1849 1727 AppliedTheory Corporation
17974 1648 1612 PT TELEKOMUNIKASI INDONESIA
10620 1706 1549 TVCABLE BOGOTA
7545 1624 1537 TPG Internet Pty Ltd
8402 1495 1481 Corbina telecom
28573 1494 1424 Types of queries are: POCs, o
22773 1499 1396 Cox Communications, Inc.
7552 1394 1387 Vietel Corporation
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.244.56/29 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 37345 MEDALLION Communications
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
Complete listing at http://thyme.rand.apnic.net/rviews/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 /8:20 /9:12 /10:27 /11:81 /12:236
/13:465 /14:812 /15:1455 /16:12154 /17:6342 /18:10413
/19:20529 /20:28828 /21:28181 /22:38208 /23:35900 /24:200136
/25:66 /26:85 /27:111 /28:278 /29:110 /30:487
/31:53 /32:474
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2570 2958 Windstream Communications Inc
6389 2180 3539 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1601 1706 TVCABLE BOGOTA
8402 1472 1495 Corbina telecom
30036 1383 1423 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1058 1849 AppliedTheory Corporation
7011 1050 1167 Citizens Utilities
22773 959 1499 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:413 2:487 4:19 5:1 6:3 8:355
12:1966 13:1 14:555 15:11 16:3 17:7
20:9 23:63 24:1695 27:1034 31:707 32:120
33:2 34:2 36:4 38:764 39:1 40:109
41:2677 42:61 43:1 44:3 46:1050 47:3
49:294 50:456 52:13 55:6 56:2 57:58
58:923 59:491 60:360 61:1146 62:1107 63:1982
64:4095 65:2302 66:4360 67:2047 68:1350 69:3253
70:953 71:389 72:1842 73:1 74:2694 75:442
76:329 77:892 78:889 79:493 80:1136 81:842
82:526 83:523 84:623 85:1156 86:413 87:911
88:359 89:1610 90:235 91:4280 92:540 93:1439
94:1312 95:1097 96:434 97:285 98:804 99:37
101:240 103:482 106:1 107:93 108:84 109:1194
110:673 111:805 112:361 113:499 114:590 115:715
116:897 117:721 118:895 119:1269 120:353 121:691
122:1576 123:1018 124:1354 125:1353 128:248 129:187
130:178 131:633 132:155 133:21 134:230 135:54
136:212 137:146 138:288 139:133 140:494 141:252
142:390 143:415 144:490 145:65 146:477 147:230
148:680 149:262 150:164 151:194 152:447 153:172
154:7 155:389 156:208 157:359 158:158 159:494
160:329 161:215 162:374 163:175 164:512 165:387
166:541 167:444 168:824 169:146 170:879 171:87
172:4 173:1763 174:598 175:433 176:294 177:390
178:1123 180:1151 181:39 182:661 183:239 184:395
185:1 186:1412 187:798 188:984 189:1158 190:5208
192:5965 193:5071 194:3571 195:3123 196:1289 197:167
198:3634 199:4225 200:5528 201:1707 202:8557 203:8557
204:4312 205:2385 206:2623 207:2819 208:4038 209:3605
210:2741 211:1473 212:2041 213:1818 214:814 215:97
216:4945 217:1613 218:575 219:337 220:1264 221:519
222:327 223:279
End of report
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