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.

Saturday, November 9, 2013

[bgp-stats] Routing Table Report - Hong Kong view

* BGP Routing Table Analysis Reports *
Routing Table Report 06:00 +10GMT Sun 10 Nov, 2013

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

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

BGP routing table entries examined: 467269
Prefixes after maximum aggregation: 187881
Deaggregation factor: 2.49
Unique aggregates announced to Internet: 233719
Total ASes present in the Internet Routing Table: 45315
Prefixes per ASN: 10.31
Origin-only ASes present in the Internet Routing Table: 35357
Origin ASes announcing only one prefix: 16281
Transit ASes present in the Internet Routing Table: 5840
Transit-only ASes present in the Internet Routing Table: 153
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 37
Max AS path prepend of ASN ( 55644) 31
Prefixes from unregistered ASNs in the Routing Table: 834
Unregistered ASNs in the Routing Table: 227
Number of 32-bit ASNs allocated by the RIRs: 5325
Number of 32-bit ASNs visible in the Routing Table: 4118
Prefixes from 32-bit ASNs in the Routing Table: 12876
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 1015
Number of addresses announced to Internet: 2648058624
Equivalent to 157 /8s, 214 /16s and 43 /24s
Percentage of available address space announced: 71.5
Percentage of allocated address space announced: 71.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.1
Total number of prefixes smaller than registry allocations: 162027

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

Prefixes being announced by APNIC Region ASes: 108992
Total APNIC prefixes after maximum aggregation: 33153
APNIC Deaggregation factor: 3.29
Prefixes being announced from the APNIC address blocks: 111128
Unique aggregates announced from the APNIC address blocks: 47455
APNIC Region origin ASes present in the Internet Routing Table: 4848
APNIC Prefixes per ASN: 22.92
APNIC Region origin ASes announcing only one prefix: 1239
APNIC Region transit ASes present in the Internet Routing Table: 811
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 726
Number of APNIC addresses announced to Internet: 724027648
Equivalent to 43 /8s, 39 /16s and 201 /24s
Percentage of available APNIC address space announced: 84.6

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 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: 162082
Total ARIN prefixes after maximum aggregation: 81305
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 163058
Unique aggregates announced from the ARIN address blocks: 75792
ARIN Region origin ASes present in the Internet Routing Table: 15899
ARIN Prefixes per ASN: 10.26
ARIN Region origin ASes announcing only one prefix: 6010
ARIN Region transit ASes present in the Internet Routing Table: 1626
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 20
Number of ARIN region 32-bit ASNs visible in the Routing Table: 34
Number of ARIN addresses announced to Internet: 1072954368
Equivalent to 63 /8s, 243 /16s and 252 /24s
Percentage of available ARIN address space announced: 56.8

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: 118604
Total RIPE prefixes after maximum aggregation: 60847
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 122284
Unique aggregates announced from the RIPE address blocks: 78743
RIPE Region origin ASes present in the Internet Routing Table: 17488
RIPE Prefixes per ASN: 6.99
RIPE Region origin ASes announcing only one prefix: 8290
RIPE Region transit ASes present in the Internet Routing Table: 2805
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2463
Number of RIPE addresses announced to Internet: 656624128
Equivalent to 39 /8s, 35 /16s and 74 /24s
Percentage of available RIPE address space announced: 95.5

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: 52286
Total LACNIC prefixes after maximum aggregation: 9847
LACNIC Deaggregation factor: 5.31
Prefixes being announced from the LACNIC address blocks: 57406
Unique aggregates announced from the LACNIC address blocks: 26886
LACNIC Region origin ASes present in the Internet Routing Table: 2037
LACNIC Prefixes per ASN: 28.18
LACNIC Region origin ASes announcing only one prefix: 550
LACNIC Region transit ASes present in the Internet Routing Table: 396
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 889
Number of LACNIC addresses announced to Internet: 142730240
Equivalent to 8 /8s, 129 /16s and 228 /24s
Percentage of available LACNIC address space announced: 85.1

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: 11736
Total AfriNIC prefixes after maximum aggregation: 2585
AfriNIC Deaggregation factor: 4.54
Prefixes being announced from the AfriNIC address blocks: 12377
Unique aggregates announced from the AfriNIC address blocks: 4019
AfriNIC Region origin ASes present in the Internet Routing Table: 672
AfriNIC Prefixes per ASN: 18.42
AfriNIC Region origin ASes announcing only one prefix: 192
AfriNIC Region transit ASes present in the Internet Routing Table: 132
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 6
Number of AfriNIC addresses announced to Internet: 48100608
Equivalent to 2 /8s, 221 /16s and 245 /24s
Percentage of available AfriNIC address space announced: 47.8

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 2715 903 89 PT TELEKOMUNIKASI INDONESIA
4766 2137 11550 644 Korea Telecom (KIX)
7545 2102 319 111 TPG Internet Pty Ltd
4755 1787 391 187 TATA Communications formerly
9829 1542 1242 46 BSNL National Internet Backbo
4808 1281 2188 368 CNCGROUP IP network: China169
9498 1211 309 74 BHARTI Airtel Ltd.
9583 1188 91 512 Sify Limited
7552 1154 1080 13 Vietel Corporation
24560 1094 380 163 Bharti Airtel Ltd., Telemedia

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

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

ASN No of nets /20 equiv MaxAgg Description
6389 3054 3688 56 BellSouth.net Inc.
22773 2194 2939 138 Cox Communications, Inc.
18566 2056 379 178 MegaPath Corporation
1785 2028 683 126 PaeTec Communications, Inc.
20115 1683 1654 608 Charter Communications
4323 1640 1102 422 Time Warner Telecom
701 1505 11146 783 MCI Communications Services,
30036 1385 313 576 Mediacom Communications Corp
7018 1350 17796 883 AT&T WorldNet Services
6983 1294 756 579 ITC^Deltacom

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

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

ASN No of nets /20 equiv MaxAgg Description
8402 1900 544 17 OJSC "Vimpelcom"
34984 1362 244 223 TELLCOM ILETISIM HIZMETLERI A
20940 1140 421 864 Akamai Technologies European
31148 1005 44 18 FreeNet ISP
13188 886 99 48 TOV "Bank-Inform"
6849 862 356 30 JSC UKRTELECOM,
8551 783 370 41 Bezeq International
6830 774 2328 426 UPC Distribution Services
12479 677 798 55 Uni2 Autonomous System
35228 542 246 16 Avatar Broadband Limited

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

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

ASN No of nets /20 equiv MaxAgg Description
28573 3450 1788 85 NET Servicos de Comunicao S.A
10620 2648 429 233 TVCABLE BOGOTA
7303 1727 1146 232 Telecom Argentina Stet-France
18881 1548 908 20 Global Village Telecom
8151 1356 2851 418 UniNet S.A. de C.V.
11830 866 364 15 Instituto Costarricense de El
27947 813 93 89 Telconet S.A
6503 787 434 61 AVANTEL, S.A.
7738 780 1498 36 Telecomunicacoes da Bahia S.A
26615 748 1749 26 Tim Brasil S.A.

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

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

ASN No of nets /20 equiv MaxAgg Description
36998 1864 112 5 Sudanese Mobile Telephone (ZA
24863 891 338 30 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 402 956 9 TEDATA
24835 298 144 9 RAYA Telecom - Egypt
3741 256 921 214 The Internet Solution
36992 229 501 29 Etisalat MISR
29571 224 17 12 Ci Telecom Autonomous system
15706 221 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

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

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

ASN No of nets /20 equiv MaxAgg Description
28573 3450 1788 85 NET Servicos de Comunicao S.A
6389 3054 3688 56 BellSouth.net Inc.
17974 2715 903 89 PT TELEKOMUNIKASI INDONESIA
10620 2648 429 233 TVCABLE BOGOTA
22773 2194 2939 138 Cox Communications, Inc.
4766 2137 11550 644 Korea Telecom (KIX)
7545 2102 319 111 TPG Internet Pty Ltd
18566 2056 379 178 MegaPath Corporation
1785 2028 683 126 PaeTec Communications, Inc.
8402 1900 544 17 OJSC "Vimpelcom"

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

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

ASN No of nets Net Savings Description
6389 3054 2998 BellSouth.net Inc.
17974 2715 2626 PT TELEKOMUNIKASI INDONESIA
10620 2648 2415 TVCABLE BOGOTA
22773 2194 2056 Cox Communications, Inc.
7545 2102 1991 TPG Internet Pty Ltd
1785 2028 1902 PaeTec Communications, Inc.
8402 1900 1883 OJSC "Vimpelcom"
18566 2056 1878 MegaPath Corporation
36998 1864 1859 Sudanese Mobile Telephone (ZA
4755 1787 1600 TATA Communications formerly

Complete listing at http://thyme.rand.apnic.net/hk/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.
62828 UNALLOCATED 8.21.130.0/24 3356 Level 3 Communicatio
62850 UNALLOCATED 8.25.147.0/24 3356 Level 3 Communicatio

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

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
0.0.0.0/0 4641 The Chinese University of Hon

Complete listing at http://thyme.rand.apnic.net/hk/data-dsua

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

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.90.192.0/18 3257 Tiscali Intl Network
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.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/hk/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

!!Default route being announced!!

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:16 /9:11 /10:30 /11:92 /12:254
/13:475 /14:917 /15:1603 /16:12778 /17:6705 /18:11192
/19:23041 /20:32704 /21:35475 /22:49698 /23:43548 /24:248698
/25:3 /26:5 /27:9 /28:7 /29:6 /30:0
/31:0 /32:1

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

ASN No of nets Total ann. Description
18566 2010 2056 MegaPath Corporation
36998 1829 1864 Sudanese Mobile Telephone (ZA
6389 1707 3054 BellSouth.net Inc.
8402 1566 1900 OJSC "Vimpelcom"
22773 1457 2194 Cox Communications, Inc.
30036 1231 1385 Mediacom Communications Corp
11492 1192 1232 Cable One
1785 1079 2028 PaeTec Communications, Inc.
6983 1034 1294 ITC^Deltacom
22561 972 1249 Digital Teleport, Inc

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

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

1:896 2:837 3:3 4:17 5:1022 6:21
8:616 12:1896 13:3 14:892 15:11 16:3
17:18 18:19 20:21 23:538 24:1743 27:1627
31:1499 32:45 33:2 34:5 36:83 37:1912
38:916 39:4 40:178 41:3245 42:244 44:14
46:2013 47:10 49:688 50:827 52:12 54:42
55:5 56:4 57:26 58:1088 59:570 60:375
61:1464 62:1223 63:1989 64:4354 65:2340 66:4146
67:2108 68:1107 69:3287 70:871 71:488 72:2045
74:2557 75:315 76:294 77:1163 78:1046 79:666
80:1299 81:1036 82:654 83:630 84:583 85:1254
86:382 87:1013 88:563 89:1558 90:150 91:5645
92:622 93:1596 94:2028 95:1602 96:509 97:345
98:1045 99:40 100:30 101:628 103:3538 105:527
106:131 107:213 108:530 109:1935 110:972 111:1110
112:588 113:808 114:744 115:1037 116:1001 117:819
118:1177 119:1258 120:336 121:748 122:1839 123:1255
124:1329 125:1438 128:672 129:229 130:330 131:665
132:366 133:157 134:554 135:67 136:279 137:242
138:350 139:177 140:197 141:332 142:541 143:398
144:496 145:88 146:528 147:401 148:776 149:368
150:138 151:587 152:411 153:205 154:51 155:501
156:290 157:418 158:278 159:689 160:360 161:457
162:842 163:223 164:630 165:584 166:258 167:634
168:1043 169:125 170:1119 171:182 172:27 173:1586
174:686 175:512 176:1306 177:2443 178:1957 179:215
180:1543 181:839 182:1324 183:466 184:667 185:1006
186:2639 187:1484 188:1862 189:1248 190:7130 192:7035
193:5421 194:4046 195:3365 196:1321 197:1058 198:4729
199:5476 200:6070 201:2457 202:8920 203:8822 204:4533
205:2640 206:2835 207:2827 208:3988 209:3650 210:2934
211:1558 212:2152 213:1989 214:895 215:91 216:5406
217:1685 218:625 219:321 220:1275 221:568 222:327
223:503

End of report
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