Routing Table Report 00:00 GMT Mon 07 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: 384682
Prefixes after maximum aggregation: 167917
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 187277
Total ASes present in the Internet Routing Table: 39244
Prefixes per ASN: 9.80
Origin-only ASes present in the Internet Routing Table: 32319
Origin ASes announcing only one prefix: 15490
Transit ASes present in the Internet Routing Table: 5328
Transit-only ASes present in the Internet Routing Table: 142
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 25
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5328
Unregistered ASNs in the Routing Table: 875
Number of 32-bit ASNs allocated by the RIRs: 1933
Number of 32-bit ASNs visible in the Routing Table: 1597
Prefixes from 32-bit ASNs in the Routing Table: 3683
Special use prefixes present in the Routing Table: 85
Prefixes being announced from unallocated address space: 86
Number of addresses announced to Internet: 2490938146
Equivalent to 148 /8s, 120 /16s and 179 /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: 161041
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93134
Total APNIC prefixes after maximum aggregation: 30125
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 89561
Unique aggregates announced from the APNIC address blocks: 38250
APNIC Region origin ASes present in the Internet Routing Table: 4584
APNIC Prefixes per ASN: 19.54
APNIC Region origin ASes announcing only one prefix: 1278
APNIC Region transit ASes present in the Internet Routing Table: 719
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 101
Number of APNIC addresses announced to Internet: 629949184
Equivalent to 37 /8s, 140 /16s and 67 /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: 148648
Total ARIN prefixes after maximum aggregation: 76506
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120387
Unique aggregates announced from the ARIN address blocks: 48362
ARIN Region origin ASes present in the Internet Routing Table: 14740
ARIN Prefixes per ASN: 8.17
ARIN Region origin ASes announcing only one prefix: 5630
ARIN Region transit ASes present in the Internet Routing Table: 1559
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804787464
Equivalent to 47 /8s, 248 /16s and 21 /24s
Percentage of available ARIN address space announced: 64.0
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: 93877
Total RIPE prefixes after maximum aggregation: 51187
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 85469
Unique aggregates announced from the RIPE address blocks: 54539
RIPE Region origin ASes present in the Internet Routing Table: 16104
RIPE Prefixes per ASN: 5.31
RIPE Region origin ASes announcing only one prefix: 7978
RIPE Region transit ASes present in the Internet Routing Table: 2549
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1111
Number of RIPE addresses announced to Internet: 491980492
Equivalent to 29 /8s, 83 /16s and 6 /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: 36536
Total LACNIC prefixes after maximum aggregation: 7979
LACNIC Deaggregation factor: 4.58
Prefixes being announced from the LACNIC address blocks: 35883
Unique aggregates announced from the LACNIC address blocks: 18559
LACNIC Region origin ASes present in the Internet Routing Table: 1539
LACNIC Prefixes per ASN: 23.32
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 290
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 369
Number of LACNIC addresses announced to Internet: 92916744
Equivalent to 5 /8s, 137 /16s and 204 /24s
Percentage of available LACNIC address space announced: 61.5
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: 8590
Total AfriNIC prefixes after maximum aggregation: 2044
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 6647
Unique aggregates announced from the AfriNIC address blocks: 1995
AfriNIC Region origin ASes present in the Internet Routing Table: 494
AfriNIC Prefixes per ASN: 13.46
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 114
Average AfriNIC Region AS path length visible: 4.4
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: 27597056
Equivalent to 1 /8s, 165 /16s and 25 /24s
Percentage of available AfriNIC address space announced: 41.1
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 11121 665 Korea Telecom (KIX)
17974 1627 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1610 303 84 TPG Internet Pty Ltd
4755 1542 636 170 Videsh Sanchar Nigam Ltd. Aut
7552 1394 1064 7 Vietel Corporation
9829 1165 989 28 BSNL National Internet Backbo
9583 1099 81 503 Sify Limited
4808 1043 2034 291 CNCGROUP IP network: China169
17488 966 187 207 Hathway IP Over Cable Interne
24560 964 343 218 Bharti Airtel Ltd.
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 3547 3815 221 bellsouth.net, inc.
7029 2372 1042 211 Windstream Communications Inc
18566 2095 383 177 Covad Communications
1785 1845 680 123 AppliedTheory Corporation
4323 1622 1077 387 Time Warner Telecom
20115 1594 1547 620 Charter Communications
22773 1489 2909 103 Cox Communications, Inc.
30036 1405 254 672 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1318 7030 863 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 1551 416 14 Corbina telecom
286 1081 827 204 KPNQwest Backbone AS
6830 651 1927 414 UPC Distribution Services
34984 596 110 184 Tellcom Iletisim Hizmetleri
20940 566 189 444 Akamai Technologies European
12479 547 628 51 Uni2 Autonomous System
9116 541 326 31 Goldenlines main autonomous s
3292 534 2074 408 TDC Tele Danmark
3320 504 8169 384 Deutsche Telekom AG
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 1699 314 156 TVCABLE BOGOTA
28573 1474 1043 79 Types of queries are: POCs, o
8151 1459 2918 345 Uninet S.A. de C.V.
7303 1236 751 171 Telecom Argentina Stet-France
27947 602 72 84 Telconet S.A
22047 580 322 17 Types of queries are: POCs, o
6503 575 434 69 AVANTEL, S.A.
7738 551 1050 31 Telecomunicacoes da Bahia S.A
10481 547 429 25 Prima S.A.
3816 541 233 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 801 146 36 LINKdotNET AS number
8452 652 446 12 TEDATA
15475 443 74 8 Nile Online
36992 286 415 21 Etisalat MISR
3741 282 939 231 The Internet Solution
15706 240 32 6 Sudatel Internet Exchange Aut
33776 239 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 219 18 14 Ci Telecom Autonomous system
12258 197 28 58 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 3547 3815 221 bellsouth.net, inc.
7029 2372 1042 211 Windstream Communications Inc
18566 2095 383 177 Covad Communications
4766 1950 11121 665 Korea Telecom (KIX)
1785 1845 680 123 AppliedTheory Corporation
10620 1699 314 156 TVCABLE BOGOTA
17974 1627 511 36 PT TELEKOMUNIKASI INDONESIA
4323 1622 1077 387 Time Warner Telecom
7545 1610 303 84 TPG Internet Pty Ltd
20115 1594 1547 620 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 2372 2161 Windstream Communications Inc
18566 2095 1918 Covad Communications
1785 1845 1722 AppliedTheory Corporation
17974 1627 1591 PT TELEKOMUNIKASI INDONESIA
10620 1699 1543 TVCABLE BOGOTA
8402 1551 1537 Corbina telecom
7545 1610 1526 TPG Internet Pty Ltd
28573 1474 1395 Types of queries are: POCs, o
7552 1394 1387 Vietel Corporation
22773 1489 1386 Cox Communications, Inc.
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 /14:815 /15:1454 /16:12184 /17:6324 /18:10446
/19:20494 /20:28728 /21:28074 /22:37560 /23:35786 /24:200322
/25:67 /26:86 /27:115 /28:276 /29:107 /30:478
/31:52 /32:473
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2187 3547 bellsouth.net, inc.
18566 2044 2095 Covad Communications
7029 2031 2372 Windstream Communications Inc
10620 1594 1699 TVCABLE BOGOTA
8402 1527 1551 Corbina telecom
30036 1365 1405 Mediacom Communications Corp
11492 1117 1155 Cable One
1785 1057 1845 AppliedTheory Corporation
7011 1053 1171 Citizens Utilities
22773 951 1489 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:421 2:488 4:19 5:1 6:3 8:362
12:1957 13:1 14:541 15:11 16:3 17:7
20:9 23:58 24:1686 27:1027 31:672 32:150
33:2 34:2 36:4 38:759 39:1 40:110
41:2718 42:57 44:3 46:1030 47:3 49:299
50:448 52:13 55:7 56:2 57:57 58:908
59:496 60:362 61:1139 62:1103 63:1983 64:4081
65:2307 66:4297 67:2034 68:1345 69:3292 70:929
71:385 72:1834 73:1 74:2663 75:401 76:325
77:964 78:880 79:473 80:1129 81:836 82:533
83:530 84:627 85:1152 86:409 87:978 88:361
89:1616 90:237 91:4261 92:536 93:1547 94:1298
95:1145 96:432 97:286 98:945 99:37 101:226
103:433 106:8 107:84 108:76 109:1157 110:664
111:799 112:356 113:487 114:624 115:716 116:910
117:723 118:893 119:1272 120:344 121:715 122:1574
123:1018 124:1352 125:1356 128:247 129:192 130:165
131:627 132:150 133:21 134:222 135:54 136:212
137:142 138:285 139:153 140:482 141:317 142:389
143:412 144:492 145:64 146:463 147:233 148:688
149:267 150:165 151:194 152:446 153:178 154:7
155:384 156:208 157:361 158:154 159:486 160:330
161:214 162:371 163:179 164:511 165:387 166:546
167:441 168:819 169:146 170:880 171:88 172:4
173:1729 174:685 175:428 176:306 177:372 178:1093
180:1143 181:37 182:656 183:221 184:389 185:1
186:1332 187:772 188:1062 189:1147 190:5176 192:5970
193:5067 194:3585 195:3158 196:1278 197:170 198:3638
199:4212 200:5515 201:1697 202:8549 203:8548 204:4318
205:2373 206:2698 207:2826 208:4055 209:3610 210:2810
211:1465 212:2136 213:1786 214:806 215:95 216:4934
217:1605 218:570 219:343 220:1259 221:517 222:324
223:265
End of report
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