The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Sunday, December 22, 2013

[bgp-stats] Routing Table Report - Brisbane view

* BGP Routing Table Analysis Reports *
Routing Table Report 05:00 +10GMT Mon 23 Dec, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/au/

Analysis Summary
----------------

BGP routing table entries examined: 471551
Prefixes after maximum aggregation: 188976
Deaggregation factor: 2.50
Unique aggregates announced to Internet: 235923
Total ASes present in the Internet Routing Table: 45652
Prefixes per ASN: 10.33
Origin-only ASes present in the Internet Routing Table: 35550
Origin ASes announcing only one prefix: 16286
Transit ASes present in the Internet Routing Table: 5781
Transit-only ASes present in the Internet Routing Table: 156
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 30
Max AS path prepend of ASN ( 59482) 25
Prefixes from unregistered ASNs in the Routing Table: 1195
Unregistered ASNs in the Routing Table: 337
Number of 32-bit ASNs allocated by the RIRs: 5580
Number of 32-bit ASNs visible in the Routing Table: 4321
Prefixes from 32-bit ASNs in the Routing Table: 13528
Number of bogon 32-bit ASNs visible in the Routing Table: 1
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 1465
Number of addresses announced to Internet: 2660165116
Equivalent to 158 /8s, 142 /16s and 229 /24s
Percentage of available address space announced: 71.9
Percentage of allocated address space announced: 71.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.4
Total number of prefixes smaller than registry allocations: 164186

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 110520
Total APNIC prefixes after maximum aggregation: 33514
APNIC Deaggregation factor: 3.30
Prefixes being announced from the APNIC address blocks: 112809
Unique aggregates announced from the APNIC address blocks: 47886
APNIC Region origin ASes present in the Internet Routing Table: 4844
APNIC Prefixes per ASN: 23.29
APNIC Region origin ASes announcing only one prefix: 1222
APNIC Region transit ASes present in the Internet Routing Table: 820
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 29
Number of APNIC region 32-bit ASNs visible in the Routing Table: 787
Number of APNIC addresses announced to Internet: 729186812
Equivalent to 43 /8s, 118 /16s and 129 /24s
Percentage of available APNIC address space announced: 85.2

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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, 150/8, 153/8,
163/8, 171/8, 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: 162154
Total ARIN prefixes after maximum aggregation: 81464
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 162933
Unique aggregates announced from the ARIN address blocks: 75856
ARIN Region origin ASes present in the Internet Routing Table: 15887
ARIN Prefixes per ASN: 10.26
ARIN Region origin ASes announcing only one prefix: 5995
ARIN Region transit ASes present in the Internet Routing Table: 1632
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 49
Number of ARIN addresses announced to Internet: 1074887936
Equivalent to 64 /8s, 17 /16s and 125 /24s
Percentage of available ARIN address space announced: 56.9

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, 62464-63487, 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, 128/8,
129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
173/8, 174/8, 184/8, 192/8, 198/8, 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: 119692
Total RIPE prefixes after maximum aggregation: 61293
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 123429
Unique aggregates announced from the RIPE address blocks: 79307
RIPE Region origin ASes present in the Internet Routing Table: 17557
RIPE Prefixes per ASN: 7.03
RIPE Region origin ASes announcing only one prefix: 8317
RIPE Region transit ASes present in the Internet Routing Table: 2746
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2540
Number of RIPE addresses announced to Internet: 655672832
Equivalent to 39 /8s, 20 /16s and 198 /24s
Percentage of available RIPE address space announced: 95.3

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
59392-61439, 61952-62463, 196608-200191
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,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 52961
Total LACNIC prefixes after maximum aggregation: 9852
LACNIC Deaggregation factor: 5.38
Prefixes being announced from the LACNIC address blocks: 58344
Unique aggregates announced from the LACNIC address blocks: 27513
LACNIC Region origin ASes present in the Internet Routing Table: 2050
LACNIC Prefixes per ASN: 28.46
LACNIC Region origin ASes announcing only one prefix: 550
LACNIC Region transit ASes present in the Internet Routing Table: 384
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 937
Number of LACNIC addresses announced to Internet: 146973184
Equivalent to 8 /8s, 194 /16s and 162 /24s
Percentage of available LACNIC address space announced: 87.6

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 11801
Total AfriNIC prefixes after maximum aggregation: 2603
AfriNIC Deaggregation factor: 4.53
Prefixes being announced from the AfriNIC address blocks: 12571
Unique aggregates announced from the AfriNIC address blocks: 4217
AfriNIC Region origin ASes present in the Internet Routing Table: 694
AfriNIC Prefixes per ASN: 18.11
AfriNIC Region origin ASes announcing only one prefix: 202
AfriNIC Region transit ASes present in the Internet Routing Table: 142
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 8
Number of AfriNIC addresses announced to Internet: 48643328
Equivalent to 2 /8s, 230 /16s and 61 /24s
Percentage of available AfriNIC address space announced: 48.3

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
17974 2731 902 88 PT TELEKOMUNIKASI INDONESIA
4766 2156 11550 653 Korea Telecom (KIX)
7545 2122 319 112 TPG Internet Pty Ltd
4755 1804 392 191 TATA Communications formerly
9829 1559 1251 42 BSNL National Internet Backbo
9583 1294 100 537 Sify Limited
9498 1229 309 71 BHARTI Airtel Ltd.
7552 1204 1080 13 Vietel Corporation
24560 1098 382 167 Bharti Airtel Ltd., Telemedia
4808 1046 1948 307 CNCGROUP IP network: China169

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3027 3688 53 BellSouth.net Inc.
22773 2322 2939 139 Cox Communications, Inc.
1785 2146 686 131 PaeTec Communications, Inc.
18566 2049 379 178 MegaPath Corporation
20115 1682 1664 594 Charter Communications
4323 1640 1097 414 Time Warner Telecom
701 1494 11142 769 MCI Communications Services,
30036 1375 309 574 Mediacom Communications Corp
7018 1307 17746 847 AT&T WorldNet Services
6983 1295 756 580 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1868 544 16 OJSC "Vimpelcom"
34984 1366 243 226 TELLCOM ILETISIM HIZMETLERI A
20940 1206 458 907 Akamai Technologies European
31148 1011 45 19 FreeNet ISP
13188 910 95 77 TOV "Bank-Inform"
6849 860 363 38 JSC UKRTELECOM,
8551 849 370 38 Bezeq International
6830 773 2328 426 UPC Distribution Services
12479 683 798 53 Uni2 Autonomous System
35228 549 246 16 Avatar Broadband Limited

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3430 1839 91 NET Servicos de Comunicao S.A
10620 2691 435 209 Telmex Colombia S.A.
18881 1778 908 20 Global Village Telecom
7303 1741 1163 228 Telecom Argentina Stet-France
8151 1357 2855 423 UniNet S.A. de C.V.
11830 868 364 15 Instituto Costarricense de El
27947 831 94 91 Telconet S.A
6503 788 434 61 AVANTEL, S.A.
6147 787 373 27 Telefonica Del Peru
7738 780 1498 36 Telecomunicacoes da Bahia S.A

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1819 112 5 Sudanese Mobile Telephone (ZA
24863 890 338 26 LINKdotNET AS number
6713 598 653 27 Itissalat Al-MAGHRIB
8452 421 956 9 TEDATA
24835 298 144 9 RAYA Telecom - Egypt
3741 247 921 209 The Internet Solution
36992 247 526 30 Etisalat MISR
29571 239 21 14 Ci Telecom Autonomous system
15706 219 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3430 1839 91 NET Servicos de Comunicao S.A
6389 3027 3688 53 BellSouth.net Inc.
17974 2731 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2691 435 209 Telmex Colombia S.A.
22773 2322 2939 139 Cox Communications, Inc.
4766 2156 11550 653 Korea Telecom (KIX)
1785 2146 686 131 PaeTec Communications, Inc.
7545 2122 319 112 TPG Internet Pty Ltd
18566 2049 379 178 MegaPath Corporation
8402 1868 544 16 OJSC "Vimpelcom"

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3027 2974 BellSouth.net Inc.
17974 2731 2643 PT TELEKOMUNIKASI INDONESIA
10620 2691 2482 Telmex Colombia S.A.
22773 2322 2183 Cox Communications, Inc.
1785 2146 2015 PaeTec Communications, Inc.
7545 2122 2010 TPG Internet Pty Ltd
18566 2049 1871 MegaPath Corporation
8402 1868 1852 OJSC "Vimpelcom"
36998 1819 1814 Sudanese Mobile Telephone (ZA
18881 1778 1758 Global Village Telecom

Complete listing at http://thyme.rand.apnic.net/au/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65010 PRIVATE 1.38.8.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.9.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.11.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.32.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.160.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.192.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.224.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.240.0/21 38266 Hutchison Essar Ltd.
65514 PRIVATE 5.102.224.0/19 47956 XFONE COMMUNICATION
65456 PRIVATE 5.109.32.0/19 23456 32-bit ASN transitio

Complete listing at http://thyme.rand.apnic.net/au/data-badAS

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.120.0/21 36351 SoftLayer Technologies Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/au/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 /8:16 /9:11 /10:31 /11:92 /12:253
/13:473 /14:941 /15:1643 /16:12879 /17:6757 /18:11241
/19:23125 /20:32971 /21:35736 /22:50396 /23:43870 /24:250892
/25:46 /26:32 /27:49 /28:37 /29:29 /30:31
/31:0 /32:0

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2004 2049 MegaPath Corporation
36998 1786 1819 Sudanese Mobile Telephone (ZA
6389 1699 3027 BellSouth.net Inc.
8402 1571 1868 OJSC "Vimpelcom"
22773 1566 2322 Cox Communications, Inc.
30036 1216 1375 Mediacom Communications Corp
1785 1163 2146 PaeTec Communications, Inc.
11492 1148 1185 Cable One
6983 1037 1295 ITC^Deltacom
22561 977 1252 Digital Teleport, Inc

Complete listing at http://thyme.rand.apnic.net/au/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:921 2:860 3:3 4:16 5:829 6:21
8:617 12:1882 13:3 14:878 15:9 16:3
17:20 18:19 20:36 23:614 24:1750 27:1716
31:1516 32:46 33:2 34:5 36:105 37:1953
38:914 39:3 40:182 41:3332 42:236 44:14
46:2096 47:10 49:700 50:859 52:12 54:44
55:5 56:4 57:26 58:1095 59:589 60:370
61:1473 62:1225 63:1978 64:4385 65:2328 66:4133
67:2111 68:1086 69:3295 70:909 71:509 72:2015
74:2583 75:323 76:305 77:1215 78:1019 79:676
80:1278 81:1077 82:641 83:755 84:623 85:1238
86:402 87:1013 88:519 89:1566 90:150 91:5741
92:618 93:1618 94:2100 95:1526 96:519 97:351
98:1082 99:41 100:32 101:445 103:3849 105:535
106:144 107:255 108:546 109:2021 110:960 111:1131
112:588 113:812 114:743 115:1028 116:995 117:811
118:1243 119:1273 120:360 121:744 122:1845 123:1267
124:1351 125:1481 128:602 129:223 130:341 131:657
132:345 133:159 134:300 135:73 136:272 137:247
138:353 139:168 140:174 141:348 142:537 143:362
144:482 145:90 146:553 147:440 148:739 149:360
150:153 151:479 152:412 153:208 154:49 155:518
156:311 157:368 158:286 159:709 160:359 161:453
162:951 163:207 164:658 165:579 166:282 167:641
168:1037 169:122 170:1153 171:185 172:12 173:1706
174:675 175:537 176:1331 177:2604 178:1899 179:347
180:1617 181:906 182:1421 183:476 184:620 185:1145
186:2712 187:1480 188:1929 189:1248 190:7307 192:7006
193:5429 194:4029 195:3394 196:1339 197:1081 198:4747
199:5492 200:6041 201:2545 202:8902 203:8948 204:4467
205:2620 206:2817 207:2747 208:3946 209:3680 210:2973
211:1610 212:2184 213:1973 214:857 215:85 216:5420
217:1721 218:623 219:318 220:1269 221:591 222:330
223:591

End of report
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