Routing Table Report 00:00 GMT Thu 22 Sep, 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: 377419
Prefixes after maximum aggregation: 169106
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 184989
Total ASes present in the Internet Routing Table: 38855
Prefixes per ASN: 9.71
Origin-only ASes present in the Internet Routing Table: 32212
Origin ASes announcing only one prefix: 15475
Transit ASes present in the Internet Routing Table: 5219
Transit-only ASes present in the Internet Routing Table: 144
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 31
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 4644
Unregistered ASNs in the Routing Table: 769
Number of 32-bit ASNs allocated by the RIRs: 1757
Number of 32-bit ASNs visible in the Routing Table: 1424
Prefixes from 32-bit ASNs in the Routing Table: 3277
Special use prefixes present in the Routing Table: 83
Prefixes being announced from unallocated address space: 99
Number of addresses announced to Internet: 2479891863
Equivalent to 147 /8s, 208 /16s and 37 /24s
Percentage of available address space announced: 66.9
Percentage of allocated address space announced: 66.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.4
Total number of prefixes smaller than registry allocations: 156640
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91950
Total APNIC prefixes after maximum aggregation: 29572
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 88587
Unique aggregates announced from the APNIC address blocks: 38122
APNIC Region origin ASes present in the Internet Routing Table: 4557
APNIC Prefixes per ASN: 19.44
APNIC Region origin ASes announcing only one prefix: 1267
APNIC Region transit ASes present in the Internet Routing Table: 708
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 89
Number of APNIC addresses announced to Internet: 627964160
Equivalent to 37 /8s, 109 /16s and 249 /24s
Percentage of available APNIC address space announced: 79.6
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: 147184
Total ARIN prefixes after maximum aggregation: 75767
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 118925
Unique aggregates announced from the ARIN address blocks: 47963
ARIN Region origin ASes present in the Internet Routing Table: 14677
ARIN Prefixes per ASN: 8.10
ARIN Region origin ASes announcing only one prefix: 5638
ARIN Region transit ASes present in the Internet Routing Table: 1542
Average ARIN Region AS path length visible: 3.8
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: 804943772
Equivalent to 47 /8s, 250 /16s and 119 /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: 90873
Total RIPE prefixes after maximum aggregation: 50356
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 82837
Unique aggregates announced from the RIPE address blocks: 53979
RIPE Region origin ASes present in the Internet Routing Table: 15993
RIPE Prefixes per ASN: 5.18
RIPE Region origin ASes announcing only one prefix: 7963
RIPE Region transit ASes present in the Internet Routing Table: 2514
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1009
Number of RIPE addresses announced to Internet: 489835468
Equivalent to 29 /8s, 50 /16s and 75 /24s
Percentage of available RIPE address space announced: 78.9
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: 35510
Total LACNIC prefixes after maximum aggregation: 7787
LACNIC Deaggregation factor: 4.56
Prefixes being announced from the LACNIC address blocks: 34724
Unique aggregates announced from the LACNIC address blocks: 17916
LACNIC Region origin ASes present in the Internet Routing Table: 1524
LACNIC Prefixes per ASN: 22.78
LACNIC Region origin ASes announcing only one prefix: 451
LACNIC Region transit ASes present in the Internet Routing Table: 272
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 310
Number of LACNIC addresses announced to Internet: 89193736
Equivalent to 5 /8s, 80 /16s and 253 /24s
Percentage of available LACNIC address space announced: 59.1
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: 8425
Total AfriNIC prefixes after maximum aggregation: 2002
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6506
Unique aggregates announced from the AfriNIC address blocks: 1985
AfriNIC Region origin ASes present in the Internet Routing Table: 488
AfriNIC Prefixes per ASN: 13.33
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 106
Average AfriNIC Region AS path length visible: 4.2
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: 27348992
Equivalent to 1 /8s, 161 /16s and 80 /24s
Percentage of available AfriNIC address space announced: 40.8
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
17974 1989 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1941 11056 650 Korea Telecom (KIX)
7545 1596 303 86 TPG Internet Pty Ltd
4755 1548 378 164 Videsh Sanchar Nigam Ltd. Aut
7552 1416 1064 7 Vietel Corporation
24560 1182 337 194 Bharti Airtel Ltd.
9829 1158 989 28 BSNL National Internet Backbo
4808 1092 2123 310 CNCGROUP IP network: China169
9583 1084 80 501 Sify Limited
18101 952 118 140 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 3560 3817 226 bellsouth.net, inc.
18566 1912 364 237 Covad Communications
1785 1826 680 124 AppliedTheory Corporation
7029 1720 1018 218 Windstream Communications Inc
4323 1625 1101 393 Time Warner Telecom
20115 1594 1542 634 Charter Communications
22773 1458 2907 99 Cox Communications, Inc.
30036 1426 266 679 Mediacom Communications Corp
19262 1394 4724 398 Verizon Global Networks
7018 1336 7067 873 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
286 1069 824 200 KPNQwest Backbone AS
8402 708 352 13 Corbina telecom
34984 565 108 181 Tellcom Iletisim Hizmetleri
20940 549 184 428 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
3292 528 2081 408 TDC Tele Danmark
6830 525 1811 322 UPC Distribution Services
3320 493 8167 381 Deutsche Telekom AG
12479 474 594 8 Uni2 Autonomous System
8866 463 133 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 1679 309 156 TVCABLE BOGOTA
8151 1465 2786 355 Uninet S.A. de C.V.
28573 1352 1013 70 Types of queries are: POCs, o
7303 1156 678 170 Telecom Argentina Stet-France
14420 734 58 88 Types of queries are: POCs, o
6503 592 450 70 AVANTEL, S.A.
22047 580 322 17 Types of queries are: POCs, o
27947 580 56 76 Telconet S.A
10481 548 430 20 Prima S.A.
3816 538 232 99 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 814 147 42 LINKdotNET AS number
8452 708 445 11 TEDATA
15475 450 74 8 Nile Online
36992 292 415 14 Etisalat MISR
3741 274 938 229 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
33776 239 13 8 Starcomms Nigeria Limited
12258 199 28 59 YEBO-AS
24835 182 70 11 RAYA Telecom - Egypt
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 3560 3817 226 bellsouth.net, inc.
23456 3277 775 1768 >>UNKNOWN<<
17974 1989 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1941 11056 650 Korea Telecom (KIX)
18566 1912 364 237 Covad Communications
1785 1826 680 124 AppliedTheory Corporation
7029 1720 1018 218 Windstream Communications Inc
10620 1679 309 156 TVCABLE BOGOTA
4323 1625 1101 393 Time Warner Telecom
7545 1596 303 86 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
17974 1989 1958 PT TELEKOMUNIKASI INDONESIA
1785 1826 1702 AppliedTheory Corporation
18566 1912 1675 Covad Communications
10620 1679 1523 TVCABLE BOGOTA
7545 1596 1510 TPG Internet Pty Ltd
23456 3277 1509 >>UNKNOWN<<
7029 1720 1502 Windstream Communications Inc
7552 1416 1409 Vietel Corporation
4755 1548 1384 Videsh Sanchar Nigam Ltd. Aut
22773 1458 1359 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
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 1239 Sprint
26973 UNALLOCATED 12.39.155.0/24 1239 Sprint
26973 UNALLOCATED 12.39.159.0/24 1239 Sprint
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
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 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
46.18.104.0/21 23456 >>UNKNOWN<<
50.115.224.0/20 27257 Webair Internet Development I
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 /8:19 /9:12 /10:27 /11:81 /12:235
/13:464 /14:808 /15:1450 /16:12092 /17:6238 /18:10324
/19:20332 /20:28195 /21:27551 /22:36898 /23:35433 /24:195445
/25:76 /26:88 /27:123 /28:295 /29:104 /30:557
/31:73 /32:499
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2197 3560 bellsouth.net, inc.
18566 1868 1912 Covad Communications
10620 1574 1679 TVCABLE BOGOTA
23456 1567 3277 >>UNKNOWN<<
7029 1409 1720 Windstream Communications Inc
30036 1383 1426 Mediacom Communications Corp
11492 1113 1151 Cable One
7011 1058 1183 Citizens Utilities
1785 1053 1826 AppliedTheory Corporation
22773 947 1458 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:383 2:163 4:19 5:1 6:3 8:353
12:1959 13:1 14:543 15:13 16:3 17:7
20:10 23:35 24:1686 27:943 31:536 32:149
33:4 34:2 36:4 38:745 40:108 41:2538
42:48 44:3 46:992 47:3 49:246 50:423
52:13 54:2 55:6 56:2 57:45 58:882
59:492 60:376 61:1181 62:1094 63:1963 64:4101
65:2308 66:4019 67:1985 68:1290 69:3306 70:849
71:377 72:1889 73:1 74:2511 75:361 76:348
77:873 78:743 79:488 80:1130 81:846 82:519
83:503 84:642 85:1090 86:417 87:867 88:356
89:1572 90:266 91:4123 92:533 93:1234 94:1329
95:863 96:440 97:275 98:948 99:37 101:208
103:312 106:96 107:52 108:83 109:1031 110:676
111:779 112:322 113:449 114:566 115:696 116:920
117:709 118:899 119:1186 120:332 121:703 122:1604
123:1004 124:1359 125:1393 128:245 129:181 130:165
131:579 132:120 133:21 134:216 135:53 136:207
137:139 138:288 139:121 140:493 141:279 142:392
143:408 144:483 145:60 146:471 147:226 148:692
149:251 150:153 151:190 152:448 153:177 154:6
155:394 156:205 157:360 158:144 159:462 160:325
161:207 162:339 163:178 164:507 165:404 166:537
167:435 168:748 169:147 170:857 171:84 172:1
173:1669 174:658 175:408 176:203 177:273 178:1014
180:1075 181:30 182:630 183:219 184:380 185:1
186:1459 187:674 188:943 189:852 190:5161 192:5945
193:5020 194:3553 195:3086 196:1249 197:169 198:3598
199:4132 200:5525 201:1639 202:8559 203:8502 204:4258
205:2352 206:2739 207:2839 208:4158 209:3545 210:2726
211:1472 212:2132 213:1768 214:784 215:76 216:4932
217:1594 218:555 219:340 220:1230 221:515 222:343
223:266
End of report
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