Routing Table Report 00:00 GMT Wed 25 Jan, 2012
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: 397525
Prefixes after maximum aggregation: 170451
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 191475
Total ASes present in the Internet Routing Table: 39911
Prefixes per ASN: 9.96
Origin-only ASes present in the Internet Routing Table: 32816
Origin ASes announcing only one prefix: 15529
Transit ASes present in the Internet Routing Table: 5211
Transit-only ASes present in the Internet Routing Table: 128
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 30
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 4899
Unregistered ASNs in the Routing Table: 124
Number of 32-bit ASNs allocated by the RIRs: 2211
Number of 32-bit ASNs visible in the Routing Table: 1884
Prefixes from 32-bit ASNs in the Routing Table: 4560
Special use prefixes present in the Routing Table: 88
Prefixes being announced from unallocated address space: 126
Number of addresses announced to Internet: 2512143334
Equivalent to 149 /8s, 188 /16s and 67 /24s
Percentage of available address space announced: 67.8
Percentage of allocated address space announced: 67.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 166704
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95939
Total APNIC prefixes after maximum aggregation: 30520
APNIC Deaggregation factor: 3.14
Prefixes being announced from the APNIC address blocks: 92292
Unique aggregates announced from the APNIC address blocks: 39001
APNIC Region origin ASes present in the Internet Routing Table: 4618
APNIC Prefixes per ASN: 19.99
APNIC Region origin ASes announcing only one prefix: 1256
APNIC Region transit ASes present in the Internet Routing Table: 720
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 134
Number of APNIC addresses announced to Internet: 635223808
Equivalent to 37 /8s, 220 /16s and 191 /24s
Percentage of available APNIC address space announced: 80.6
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: 150512
Total ARIN prefixes after maximum aggregation: 77410
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 122206
Unique aggregates announced from the ARIN address blocks: 49118
ARIN Region origin ASes present in the Internet Routing Table: 14873
ARIN Prefixes per ASN: 8.22
ARIN Region origin ASes announcing only one prefix: 5672
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: 14
Number of ARIN addresses announced to Internet: 805083400
Equivalent to 47 /8s, 252 /16s and 153 /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: 99501
Total RIPE prefixes after maximum aggregation: 52289
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 90576
Unique aggregates announced from the RIPE address blocks: 55797
RIPE Region origin ASes present in the Internet Routing Table: 16293
RIPE Prefixes per ASN: 5.56
RIPE Region origin ASes announcing only one prefix: 7994
RIPE Region transit ASes present in the Internet Routing Table: 2519
Average RIPE Region AS path length visible: 3.8
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1311
Number of RIPE addresses announced to Internet: 498246540
Equivalent to 29 /8s, 178 /16s and 163 /24s
Percentage of available RIPE address space announced: 80.3
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: 37906
Total LACNIC prefixes after maximum aggregation: 8061
LACNIC Deaggregation factor: 4.70
Prefixes being announced from the LACNIC address blocks: 37447
Unique aggregates announced from the LACNIC address blocks: 19327
LACNIC Region origin ASes present in the Internet Routing Table: 1563
LACNIC Prefixes per ASN: 23.96
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 287
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 421
Number of LACNIC addresses announced to Internet: 95566600
Equivalent to 5 /8s, 178 /16s and 59 /24s
Percentage of available LACNIC address space announced: 63.3
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: 8919
Total AfriNIC prefixes after maximum aggregation: 2099
AfriNIC Deaggregation factor: 4.25
Prefixes being announced from the AfriNIC address blocks: 6942
Unique aggregates announced from the AfriNIC address blocks: 2146
AfriNIC Region origin ASes present in the Internet Routing Table: 511
AfriNIC Prefixes per ASN: 13.59
AfriNIC Region origin ASes announcing only one prefix: 162
AfriNIC Region transit ASes present in the Internet Routing Table: 120
Average AfriNIC Region AS path length visible: 3.8
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: 30881280
Equivalent to 1 /8s, 215 /16s and 54 /24s
Percentage of available AfriNIC address space announced: 46.0
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 1911 11097 664 Korea Telecom (KIX)
17974 1717 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1636 303 84 TPG Internet Pty Ltd
4755 1523 385 154 Videsh Sanchar Nigam Ltd. Aut
7552 1424 1064 7 Vietel Corporation
9829 1163 989 28 BSNL National Internet Backbo
9583 1118 81 484 Sify Limited
24560 1011 384 167 Bharti Airtel Ltd.
4808 966 1900 272 CNCGROUP IP network: China169
17488 949 161 223 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 3445 3807 201 bellsouth.net, inc.
7029 3265 1042 211 Windstream Communications Inc
18566 2093 382 177 Covad Communications
1785 1866 680 122 AppliedTheory Corporation
20115 1628 1554 624 Charter Communications
4323 1609 1078 385 Time Warner Telecom
22773 1520 2910 109 Cox Communications, Inc.
30036 1444 252 729 Mediacom Communications Corp
19262 1386 4683 400 Verizon Global Networks
7018 1305 7041 853 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 1709 480 15 Corbina telecom
2118 1241 99 14 EUnet/RELCOM Autonomous Syste
286 1111 806 203 KPNQwest Backbone AS
15557 1095 2161 64 LDCOM NETWORKS
6830 646 1928 414 UPC Distribution Services
34984 639 188 172 Tellcom Iletisim Hizmetleri
20940 586 190 468 Akamai Technologies European
8551 578 360 81 Bezeq International
12479 558 641 56 Uni2 Autonomous System
9116 541 326 32 Goldenlines main autonomous s
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 1727 322 167 TVCABLE BOGOTA
28573 1616 1068 77 Types of queries are: POCs, o
8151 1503 2996 339 Uninet S.A. de C.V.
7303 1256 756 179 Telecom Argentina Stet-France
27947 645 73 96 Telconet S.A
22047 581 322 17 Types of queries are: POCs, o
3816 555 238 92 COLOMBIA TELECOMUNICACIONES S
7738 550 1050 31 Telecomunicacoes da Bahia S.A
6503 549 434 70 AVANTEL, S.A.
10481 547 429 25 Prima S.A.
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
8452 1157 958 13 TEDATA
24863 831 155 41 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 280 939 229 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
33776 230 12 17 Starcomms Nigeria Limited
29571 215 17 12 Ci Telecom Autonomous system
12258 197 28 62 YEBO-AS
24835 189 80 8 RAYA Telecom - Egypt
16637 163 664 83 Johnnic e-Ventures
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 3445 3807 201 bellsouth.net, inc.
7029 3265 1042 211 Windstream Communications Inc
18566 2093 382 177 Covad Communications
4766 1911 11097 664 Korea Telecom (KIX)
1785 1866 680 122 AppliedTheory Corporation
10620 1727 322 167 TVCABLE BOGOTA
17974 1717 503 36 PT TELEKOMUNIKASI INDONESIA
8402 1709 480 15 Corbina telecom
7545 1636 303 84 TPG Internet Pty Ltd
20115 1628 1554 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 3265 3054 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1866 1744 AppliedTheory Corporation
8402 1709 1694 Corbina telecom
17974 1717 1681 PT TELEKOMUNIKASI INDONESIA
10620 1727 1560 TVCABLE BOGOTA
7545 1636 1552 TPG Internet Pty Ltd
28573 1616 1539 Types of queries are: POCs, o
7552 1424 1417 Vietel Corporation
22773 1520 1411 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
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
37.48.64.0/18 16265 LeaseWeb AS Macro
37.63.0.0/17 8717 Spectrum NET
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 /11:80 /12:232
/13:459 /14:822 /15:1492 /16:12295 /17:6423 /18:10641
/19:20849 /20:29311 /21:29485 /22:39699 /23:37284 /24:206682
/25:68 /26:83 /27:104 /28:286 /29:115 /30:549
/31:51 /32:456
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2869 3265 Windstream Communications Inc
6389 2115 3445 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1688 1709 Corbina telecom
10620 1622 1727 TVCABLE BOGOTA
30036 1403 1444 Mediacom Communications Corp
11492 1116 1153 Cable One
1785 1064 1866 AppliedTheory Corporation
15557 1046 1095 LDCOM NETWORKS
7011 1033 1150 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:508 2:471 4:19 5:1 6:3 8:380
12:1960 13:1 14:591 15:11 16:3 17:6
20:9 23:118 24:1720 27:1184 31:881 32:124
33:2 34:2 36:8 37:103 38:800 39:1
40:114 41:3078 42:87 43:1 44:3 46:1264
47:3 49:323 50:520 52:13 54:1 55:5
56:3 57:51 58:955 59:491 60:346 61:1184
62:929 63:1995 64:4142 65:2278 66:4434 67:2053
68:1340 69:3258 70:964 71:431 72:1827 73:1
74:2690 75:458 76:333 77:970 78:925 79:528
80:1201 81:879 82:575 83:534 84:588 85:1159
86:749 87:918 88:358 89:1560 90:258 91:4470
92:534 93:1552 94:1332 95:1125 96:416 97:301
98:784 99:38 100:18 101:253 103:675 106:4
107:135 108:132 109:1475 110:710 111:840 112:432
113:527 114:612 115:768 116:899 117:740 118:920
119:1286 120:356 121:701 122:1624 123:1064 124:1369
125:1357 128:522 129:194 130:213 131:591 132:162
133:21 134:235 135:58 136:213 137:153 138:290
139:157 140:488 141:260 142:381 143:413 144:513
145:68 146:487 147:236 148:699 149:271 150:165
151:193 152:446 153:170 154:7 155:415 156:210
157:369 158:154 159:508 160:325 161:237 162:340
163:188 164:531 165:411 166:561 167:456 168:777
169:148 170:835 171:109 172:4 173:1797 174:572
175:435 176:375 177:465 178:1230 180:1248 181:43
182:712 183:272 184:410 185:1 186:1514 187:837
188:975 189:1174 190:5376 192:6006 193:5497 194:4245
195:3445 196:1293 197:171 198:3626 199:4331 200:5641
201:1698 202:8501 203:8617 204:4345 205:2437 206:2774
207:2811 208:4047 209:3582 210:2771 211:1484 212:2028
213:1840 214:841 215:95 216:5011 217:1480 218:561
219:342 220:1257 221:558 222:326 223:269
End of report
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