Routing Table Report 00:00 GMT Mon 14 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: 384816
Prefixes after maximum aggregation: 167812
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 187691
Total ASes present in the Internet Routing Table: 39311
Prefixes per ASN: 9.79
Origin-only ASes present in the Internet Routing Table: 32420
Origin ASes announcing only one prefix: 15501
Transit ASes present in the Internet Routing Table: 5265
Transit-only ASes present in the Internet Routing Table: 133
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: 5438
Unregistered ASNs in the Routing Table: 895
Number of 32-bit ASNs allocated by the RIRs: 1946
Number of 32-bit ASNs visible in the Routing Table: 1626
Prefixes from 32-bit ASNs in the Routing Table: 3735
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 84
Number of addresses announced to Internet: 2491084068
Equivalent to 148 /8s, 122 /16s and 237 /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: 161511
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92816
Total APNIC prefixes after maximum aggregation: 29886
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 89331
Unique aggregates announced from the APNIC address blocks: 38364
APNIC Region origin ASes present in the Internet Routing Table: 4579
APNIC Prefixes per ASN: 19.51
APNIC Region origin ASes announcing only one prefix: 1278
APNIC Region transit ASes present in the Internet Routing Table: 713
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 108
Number of APNIC addresses announced to Internet: 629992960
Equivalent to 37 /8s, 140 /16s and 238 /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: 148816
Total ARIN prefixes after maximum aggregation: 76599
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120598
Unique aggregates announced from the ARIN address blocks: 48492
ARIN Region origin ASes present in the Internet Routing Table: 14758
ARIN Prefixes per ASN: 8.17
ARIN Region origin ASes announcing only one prefix: 5631
ARIN Region transit ASes present in the Internet Routing Table: 1551
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: 804358152
Equivalent to 47 /8s, 241 /16s and 136 /24s
Percentage of available ARIN address space announced: 63.9
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: 93900
Total RIPE prefixes after maximum aggregation: 51215
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 85492
Unique aggregates announced from the RIPE address blocks: 54505
RIPE Region origin ASes present in the Internet Routing Table: 16125
RIPE Prefixes per ASN: 5.30
RIPE Region origin ASes announcing only one prefix: 7986
RIPE Region transit ASes present in the Internet Routing Table: 2536
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: 1129
Number of RIPE addresses announced to Internet: 492180172
Equivalent to 29 /8s, 86 /16s and 18 /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: 36755
Total LACNIC prefixes after maximum aggregation: 7973
LACNIC Deaggregation factor: 4.61
Prefixes being announced from the LACNIC address blocks: 36119
Unique aggregates announced from the LACNIC address blocks: 18603
LACNIC Region origin ASes present in the Internet Routing Table: 1548
LACNIC Prefixes per ASN: 23.33
LACNIC Region origin ASes announcing only one prefix: 450
LACNIC Region transit ASes present in the Internet Routing Table: 281
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 373
Number of LACNIC addresses announced to Internet: 92933896
Equivalent to 5 /8s, 138 /16s and 15 /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: 8607
Total AfriNIC prefixes after maximum aggregation: 2064
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6679
Unique aggregates announced from the AfriNIC address blocks: 2037
AfriNIC Region origin ASes present in the Internet Routing Table: 499
AfriNIC Prefixes per ASN: 13.38
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 110
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: 27691264
Equivalent to 1 /8s, 166 /16s and 137 /24s
Percentage of available AfriNIC address space announced: 41.3
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 1947 11103 661 Korea Telecom (KIX)
17974 1647 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1624 303 88 TPG Internet Pty Ltd
4755 1525 378 169 Videsh Sanchar Nigam Ltd. Aut
7552 1394 1064 7 Vietel Corporation
9829 1165 989 28 BSNL National Internet Backbo
9583 1116 83 512 Sify Limited
4808 1063 2066 303 CNCGROUP IP network: China169
24560 964 343 218 Bharti Airtel Ltd.
17488 962 188 204 Hathway IP Over Cable Interne
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 3544 3814 220 bellsouth.net, inc.
7029 2746 1042 212 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1850 680 122 AppliedTheory Corporation
4323 1618 1093 388 Time Warner Telecom
20115 1595 1545 624 Charter Communications
22773 1496 2909 103 Cox Communications, Inc.
30036 1418 256 671 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1313 7046 861 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 1491 416 14 Corbina telecom
286 1084 810 201 KPNQwest Backbone AS
6830 647 1927 411 UPC Distribution Services
34984 596 110 184 Tellcom Iletisim Hizmetleri
20940 558 187 437 Akamai Technologies European
9116 541 326 31 Goldenlines main autonomous s
3292 530 2074 407 TDC Tele Danmark
3320 504 8168 389 Deutsche Telekom AG
12479 480 596 9 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 1706 316 157 TVCABLE BOGOTA
8151 1486 2918 349 Uninet S.A. de C.V.
28573 1478 1042 81 Types of queries are: POCs, o
7303 1238 751 173 Telecom Argentina Stet-France
27947 607 72 84 Telconet S.A
22047 580 322 17 Types of queries are: POCs, o
6503 576 434 70 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
10481 547 429 25 Prima S.A.
3816 542 234 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 787 146 34 LINKdotNET AS number
8452 704 446 12 TEDATA
15475 444 74 8 Nile Online
36992 282 415 20 Etisalat MISR
3741 281 939 230 The Internet Solution
15706 241 32 6 Sudatel Internet Exchange Aut
6713 235 519 14 Itissalat Al-MAGHRIB
33776 221 13 8 Starcomms Nigeria Limited
29571 218 17 13 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 3544 3814 220 bellsouth.net, inc.
7029 2746 1042 212 Windstream Communications Inc
18566 2093 383 177 Covad Communications
4766 1947 11103 661 Korea Telecom (KIX)
1785 1850 680 122 AppliedTheory Corporation
10620 1706 316 157 TVCABLE BOGOTA
17974 1647 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1624 303 88 TPG Internet Pty Ltd
4323 1618 1093 388 Time Warner Telecom
20115 1595 1545 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 2746 2534 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1850 1728 AppliedTheory Corporation
17974 1647 1611 PT TELEKOMUNIKASI INDONESIA
10620 1706 1549 TVCABLE BOGOTA
7545 1624 1536 TPG Internet Pty Ltd
8402 1491 1477 Corbina telecom
28573 1478 1397 Types of queries are: POCs, o
22773 1496 1393 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 /8:19 /9:12 /10:27 /11:81 /12:236
/13:465 /14:813 /15:1454 /16:12159 /17:6324 /18:10439
/19:20500 /20:28736 /21:28077 /22:37905 /23:35834 /24:200031
/25:66 /26:84 /27:110 /28:285 /29:116 /30:503
/31:53 /32:487
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2396 2746 Windstream Communications Inc
6389 2184 3544 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1601 1706 TVCABLE BOGOTA
8402 1468 1491 Corbina telecom
30036 1378 1418 Mediacom Communications Corp
11492 1116 1153 Cable One
1785 1057 1850 AppliedTheory Corporation
7011 1051 1168 Citizens Utilities
22773 958 1496 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:412 2:483 4:19 5:1 6:3 8:357
12:1968 13:1 14:541 15:11 16:3 17:7
20:9 23:63 24:1686 27:1032 31:696 32:120
33:2 34:2 36:4 38:760 39:1 40:110
41:2701 42:61 43:1 44:3 46:1043 47:3
49:299 50:453 52:13 55:8 56:2 57:57
58:921 59:492 60:364 61:1142 62:1106 63:1990
64:4084 65:2298 66:4347 67:2045 68:1357 69:3249
70:954 71:387 72:1833 73:1 74:2682 75:438
76:328 77:890 78:879 79:484 80:1140 81:842
82:528 83:523 84:624 85:1155 86:410 87:933
88:359 89:1605 90:236 91:4262 92:537 93:1547
94:1309 95:1099 96:432 97:285 98:945 99:37
101:232 103:465 106:7 107:91 108:81 109:1191
110:673 111:808 112:362 113:484 114:623 115:711
116:899 117:722 118:902 119:1269 120:235 121:690
122:1579 123:1020 124:1354 125:1356 128:246 129:187
130:164 131:626 132:151 133:21 134:223 135:54
136:213 137:143 138:287 139:123 140:491 141:253
142:390 143:407 144:493 145:64 146:474 147:229
148:689 149:270 150:163 151:194 152:449 153:172
154:7 155:390 156:208 157:362 158:154 159:490
160:332 161:209 162:375 163:173 164:511 165:387
166:542 167:444 168:814 169:146 170:881 171:87
172:4 173:1757 174:708 175:431 176:301 177:367
178:1107 180:1149 181:38 182:657 183:236 184:393
185:1 186:1403 187:780 188:967 189:1162 190:5219
192:5955 193:5071 194:3571 195:3126 196:1275 197:165
198:3634 199:4222 200:5528 201:1701 202:8551 203:8544
204:4315 205:2382 206:2695 207:2819 208:4034 209:3617
210:2743 211:1426 212:2028 213:1814 214:786 215:97
216:4944 217:1610 218:549 219:345 220:1263 221:487
222:326 223:272
End of report
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